Intent.java分析
2017-08-22 21:44 cascle 阅读(4230) 评论(0) 编辑 收藏 举报代码位于frameworks/base/core/java/anroid/Content/Intent.java
Intent是对要进行操作的一种抽象描述。用action抽象操作，用data(android.net.Uri)抽象操作参数。
除此之外，category用来描述action所属的类别（添加action对应的component的额外属性）来指导系相应的component如何被匹配与被处理，type用来指定data的MIME类型；component指定用来执行action的组件，如果指定了这个，其他参数被忽略；extra用来给component相应方法附加额外的所需参数。
先打成package android.content，并import这些类
1 17package android.content; 2 18 3 19import android.annotation.AnyRes; 4 20import android.annotation.IntDef; 5 21import android.annotation.SdkConstant; 6 22import android.annotation.SdkConstant.SdkConstantType; 7 23import android.annotation.SystemApi; 8 24import android.content.pm.ActivityInfo; 9 25import android.content.pm.ApplicationInfo; 10 26import android.content.pm.ComponentInfo; 11 27import android.content.pm.PackageManager; 12 28import android.content.pm.ResolveInfo; 13 29import android.content.res.Resources; 14 30import android.content.res.TypedArray; 15 31import android.graphics.Rect; 16 32import android.net.Uri; 17 33import android.os.Build; 18 34import android.os.Bundle; 19 35import android.os.IBinder; 20 36import android.os.Parcel; 21 37import android.os.Parcelable; 22 38import android.os.Process; 23 39import android.os.ResultReceiver; 24 40import android.os.ShellCommand; 25 41import android.os.StrictMode; 26 42import android.os.UserHandle; 27 43import android.provider.DocumentsContract; 28 44import android.provider.DocumentsProvider; 29 45import android.provider.MediaStore; 30 46import android.provider.OpenableColumns; 31 47import android.util.ArraySet; 32 48import android.util.AttributeSet; 33 49import android.util.Log; 34 50import com.android.internal.util.XmlUtils; 35 51import org.xmlpull.v1.XmlPullParser; 36 52import org.xmlpull.v1.XmlPullParserException; 37 53import org.xmlpull.v1.XmlSerializer; 38 54 39 55import java.io.IOException; 40 56import java.io.PrintWriter; 41 57import java.io.Serializable; 42 58import java.lang.annotation.Retention; 43 59import java.lang.annotation.RetentionPolicy; 44 60import java.net.URISyntaxException; 45 61import java.util.ArrayList; 46 62import java.util.HashSet; 47 63import java.util.List; 48 64import java.util.Locale; 49 65import java.util.Objects; 50 66import java.util.Set; 51 67 52 68import static android.content.ContentProvider.maybeAddUserId;
这个类实现了Parcelable和Cloneable接口
1 619public class Intent implements Parcelable, Cloneable {
定义了的attr字符串有action，category，type，component，data，flags
1 620 private static final String ATTR_ACTION = "action"; 2 622 private static final String ATTR_CATEGORY = "category"; 3 624 private static final String ATTR_TYPE = "type"; 4 625 private static final String ATTR_COMPONENT = "component"; 5 626 private static final String ATTR_DATA = "data"; 6 627 private static final String ATTR_FLAGS = "flags";
tag字符串有categories，extra
1 621 private static final String TAG_CATEGORIES = "categories"; 2 623 private static final String TAG_EXTRA = "extra";
下面是字符串常量
ACTION_MAIN启动一个activity为main入口
1 629 // --------------------------------------------------------------------- 2 630 // --------------------------------------------------------------------- 3 631 // Standard intent activity actions (see action variable). 4 632 5 633 /** 6 634 * Activity Action: Start as a main entry point, does not expect to 7 635 * receive data. 8 636 * <p>Input: nothing 9 637 * <p>Output: nothing 10 638 */ 11 639 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 12 640 public static final String ACTION_MAIN = "android.intent.action.MAIN";
ACTION_VIEW启动activity用来显示数据
1 642 /** 2 643 * Activity Action: Display the data to the user. This is the most common 3 644 * action performed on data -- it is the generic action you can use on 4 645 * a piece of data to get the most reasonable thing to occur. For example, 5 646 * when used on a contacts entry it will view the entry; when used on a 6 647 * mailto: URI it will bring up a compose window filled with the information 7 648 * supplied by the URI; when used with a tel: URI it will invoke the 8 649 * dialer. 9 650 * <p>Input: {@link #getData} is URI from which to retrieve data. 10 651 * <p>Output: nothing. 11 652 */ 12 653 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 13 654 public static final String ACTION_VIEW = "android.intent.action.VIEW";
ACTION_DEFAULT和ACTION_VIEW一样
1 656 /** 2 657 * A synonym for {@link #ACTION_VIEW}, the "standard" action that is 3 658 * performed on a piece of data. 4 659 */ 5 660 public static final String ACTION_DEFAULT = ACTION_VIEW;
ACTION_QUICK_VIEW用来快速浏览数据
1 662 /** 2 663 * Activity Action: Quick view the data. Launches a quick viewer for 3 664 * a URI or a list of URIs. 4 665 * <p>Activities handling this intent action should handle the vast majority of 5 666 * MIME types rather than only specific ones. 6 667 * <p>Input: {@link #getData} is a mandatory content URI of the item to 7 668 * preview. {@link #getClipData} contains an optional list of content URIs 8 669 * if there is more than one item to preview. {@link #EXTRA_INDEX} is an 9 670 * optional index of the URI in the clip data to show first. 10 671 * <p>Output: nothing. 11 672 */ 12 673 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 13 674 public static final String ACTION_QUICK_VIEW = "android.intent.action.QUICK_VIEW";
ACTION_ATTACH_DATA用来附加数据到某个component上
1 676 /** 2 677 * Used to indicate that some piece of data should be attached to some other 3 678 * place. For example, image data could be attached to a contact. It is up 4 679 * to the recipient to decide where the data should be attached; the intent 5 680 * does not specify the ultimate destination. 6 681 * <p>Input: {@link #getData} is URI of data to be attached. 7 682 * <p>Output: nothing. 8 683 */ 9 684 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 10 685 public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA"; 11 686
ACTION_EDIT用来编辑数据
1 687 /** 2 688 * Activity Action: Provide explicit editable access to the given data. 3 689 * <p>Input: {@link #getData} is URI of data to be edited. 4 690 * <p>Output: nothing. 5 691 */ 6 692 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 7 693 public static final String ACTION_EDIT = "android.intent.action.EDIT";
ACTION_INSERT_OR_EDIT用来插入或者编辑数据
1 695 /** 2 696 * Activity Action: Pick an existing item, or insert a new item, and then edit it. 3 697 * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit. 4 698 * The extras can contain type specific data to pass through to the editing/creating 5 699 * activity. 6 700 * <p>Output: The URI of the item that was picked. This must be a content: 7 701 * URI so that any receiver can access it. 8 702 */ 9 703 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 10 704 public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
ACTION_PICK用来从一个目录里选数据
1 706 /** 2 707 * Activity Action: Pick an item from the data, returning what was selected. 3 708 * <p>Input: {@link #getData} is URI containing a directory of data 4 709 * (vnd.android.cursor.dir/*) from which to pick an item. 5 710 * <p>Output: The URI of the item that was picked. 6 711 */ 7 712 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 8 713 public static final String ACTION_PICK = "android.intent.action.PICK";
ACTION_CREATE_SHORTCUT创建快捷方式
1 715 /** 2 716 * Activity Action: Creates a shortcut. 3 717 * <p>Input: Nothing.</p> 4 718 * <p>Output: An Intent representing the shortcut. The intent must contain three 5 719 * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String), 6 720 * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE 7 721 * (value: ShortcutIconResource).</p> 8 722 * 9 723 * @see #EXTRA_SHORTCUT_INTENT 10 724 * @see #EXTRA_SHORTCUT_NAME 11 725 * @see #EXTRA_SHORTCUT_ICON 12 726 * @see #EXTRA_SHORTCUT_ICON_RESOURCE 13 727 * @see android.content.Intent.ShortcutIconResource 14 728 */ 15 729 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 16 730 public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
下面的为ACTION_CREATE_SHORTCUT相关的shortcut extra配置，用来配置shortcut Intent的名字，shortcut的名字资源，图标资源
1 732 /** 2 733 * The name of the extra used to define the Intent of a shortcut. 3 734 * 4 735 * @see #ACTION_CREATE_SHORTCUT 5 736 */ 6 737 public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT"; 7 738 /** 8 739 * The name of the extra used to define the name of a shortcut. 9 740 * 10 741 * @see #ACTION_CREATE_SHORTCUT 11 742 */ 12 743 public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME"; 13 744 /** 14 745 * The name of the extra used to define the icon, as a Bitmap, of a shortcut. 15 746 * 16 747 * @see #ACTION_CREATE_SHORTCUT 17 748 */ 18 749 public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON"; 19 750 /** 20 751 * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut. 21 752 * 22 753 * @see #ACTION_CREATE_SHORTCUT 23 754 * @see android.content.Intent.ShortcutIconResource 24 755 */ 25 756 public static final String EXTRA_SHORTCUT_ICON_RESOURCE = 26 757 "android.intent.extra.shortcut.ICON_RESOURCE";
ACTION_APPLICATION_PREFERENCES调整app的preference
1 759 /** 2 760 * An activity that provides a user interface for adjusting application preferences. 3 761 * Optional but recommended settings for all applications which have settings. 4 762 */ 5 763 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 6 764 public static final String ACTION_APPLICATION_PREFERENCES 7 765 = "android.intent.action.APPLICATION_PREFERENCES";
ACTION_SHOW_APP_INFO显示app info
1 767 /** 2 768 * Activity Action: Launch an activity showing the app information. 3 769 * For applications which install other applications (such as app stores), it is recommended 4 770 * to handle this action for providing the app information to the user. 5 771 * 6 772 * <p>Input: {@link #EXTRA_PACKAGE_NAME} specifies the package whose information needs 7 773 * to be displayed. 8 774 * <p>Output: Nothing. 9 775 */ 10 776 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 11 777 public static final String ACTION_SHOW_APP_INFO 12 778 = "android.intent.action.SHOW_APP_INFO"; 13 779
内部类ShortcutIconResource封装了shortcut图标相关的package名字和icon resource id。实现了Parcelabel接口，可以通过Parcel来创建。也可以通过Context来创建
1 780 /** 2 781 * Represents a shortcut/live folder icon resource. 3 782 * 4 783 * @see Intent#ACTION_CREATE_SHORTCUT 5 784 * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE 6 785 * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER 7 786 * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON 8 787 */ 9 788 public static class ShortcutIconResource implements Parcelable { 10 789 /** 11 790 * The package name of the application containing the icon. 12 791 */ 13 792 public String packageName; 14 793 15 794 /** 16 795 * The resource name of the icon, including package, name and type. 17 796 */ 18 797 public String resourceName; 19 798 20 799 /** 21 800 * Creates a new ShortcutIconResource for the specified context and resource 22 801 * identifier. 23 802 * 24 803 * @param context The context of the application. 25 804 * @param resourceId The resource identifier for the icon. 26 805 * @return A new ShortcutIconResource with the specified's context package name 27 806 * and icon resource identifier.`` 28 807 */ 29 808 public static ShortcutIconResource fromContext(Context context, @AnyRes int resourceId) { 30 809 ShortcutIconResource icon = new ShortcutIconResource(); 31 810 icon.packageName = context.getPackageName(); 32 811 icon.resourceName = context.getResources().getResourceName(resourceId); 33 812 return icon; 34 813 } 35 814 36 815 /** 37 816 * Used to read a ShortcutIconResource from a Parcel. 38 817 */ 39 818 public static final Parcelable.Creator<ShortcutIconResource> CREATOR = 40 819 new Parcelable.Creator<ShortcutIconResource>() { 41 820 42 821 public ShortcutIconResource createFromParcel(Parcel source) { 43 822 ShortcutIconResource icon = new ShortcutIconResource(); 44 823 icon.packageName = source.readString(); 45 824 icon.resourceName = source.readString(); 46 825 return icon; 47 826 } 48 827 49 828 public ShortcutIconResource[] newArray(int size) { 50 829 return new ShortcutIconResource[size]; 51 830 } 52 831 }; 53 832 54 833 /** 55 834 * No special parcel contents. 56 835 */ 57 836 public int describeContents() { 58 837 return 0; 59 838 } 60 839 61 840 public void writeToParcel(Parcel dest, int flags) { 62 841 dest.writeString(packageName); 63 842 dest.writeString(resourceName); 64 843 } 65 844 66 845 @Override 67 846 public String toString() { 68 847 return resourceName; 69 848 } 70 849 } 71 850
ACTION_CHOOSER用来选择合适的Activity来做动作，并且可以自己配置标题
1 851 /** 2 852 * Activity Action: Display an activity chooser, allowing the user to pick 3 853 * what they want to before proceeding. This can be used as an alternative 4 854 * to the standard activity picker that is displayed by the system when 5 855 * you try to start an activity with multiple possible matches, with these 6 856 * differences in behavior: 7 857 * <ul> 8 858 * <li>You can specify the title that will appear in the activity chooser. 9 859 * <li>The user does not have the option to make one of the matching 10 860 * activities a preferred activity, and all possible activities will 11 861 * always be shown even if one of them is currently marked as the 12 862 * preferred activity. 13 863 * </ul> 14 864 * <p> 15 865 * This action should be used when the user will naturally expect to 16 866 * select an activity in order to proceed. An example if when not to use 17 867 * it is when the user clicks on a "mailto:" link. They would naturally 18 868 * expect to go directly to their mail app, so startActivity() should be 19 869 * called directly: it will 20 870 * either launch the current preferred app, or put up a dialog allowing the 21 871 * user to pick an app to use and optionally marking that as preferred. 22 872 * <p> 23 873 * In contrast, if the user is selecting a menu item to send a picture 24 874 * they are viewing to someone else, there are many different things they 25 875 * may want to do at this point: send it through e-mail, upload it to a 26 876 * web service, etc. In this case the CHOOSER action should be used, to 27 877 * always present to the user a list of the things they can do, with a 28 878 * nice title given by the caller such as "Send this photo with:". 29 879 * <p> 30 880 * If you need to grant URI permissions through a chooser, you must specify 31 881 * the permissions to be granted on the ACTION_CHOOSER Intent 32 882 * <em>in addition</em> to the EXTRA_INTENT inside. This means using 33 883 * {@link #setClipData} to specify the URIs to be granted as well as 34 884 * {@link #FLAG_GRANT_READ_URI_PERMISSION} and/or 35 885 * {@link #FLAG_GRANT_WRITE_URI_PERMISSION} as appropriate. 36 886 * <p> 37 887 * As a convenience, an Intent of this form can be created with the 38 888 * {@link #createChooser} function. 39 889 * <p> 40 890 * Input: No data should be specified. get*Extra must have 41 891 * a {@link #EXTRA_INTENT} field containing the Intent being executed, 42 892 * and can optionally have a {@link #EXTRA_TITLE} field containing the 43 893 * title text to display in the chooser. 44 894 * <p> 45 895 * Output: Depends on the protocol of {@link #EXTRA_INTENT}. 46 896 */ 47 897 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 48 898 public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER"; 49 899
createChooser是创建ACTION_CHOOSE Intent的快捷函数
1 900 /** 2 901 * Convenience function for creating a {@link #ACTION_CHOOSER} Intent. 3 902 * 4 903 * <p>Builds a new {@link #ACTION_CHOOSER} Intent that wraps the given 5 904 * target intent, also optionally supplying a title. If the target 6 905 * intent has specified {@link #FLAG_GRANT_READ_URI_PERMISSION} or 7 906 * {@link #FLAG_GRANT_WRITE_URI_PERMISSION}, then these flags will also be 8 907 * set in the returned chooser intent, with its ClipData set appropriately: 9 908 * either a direct reflection of {@link #getClipData()} if that is non-null, 10 909 * or a new ClipData built from {@link #getData()}. 11 910 * 12 911 * @param target The Intent that the user will be selecting an activity 13 912 * to perform. 14 913 * @param title Optional title that will be displayed in the chooser. 15 914 * @return Return a new Intent object that you can hand to 16 915 * {@link Context#startActivity(Intent) Context.startActivity()} and 17 916 * related methods. 18 917 */ 19 918 public static Intent createChooser(Intent target, CharSequence title) { 20 919 return createChooser(target, title, null); 21 920 }
createChooser还可以带个IntentSender回调参数，用来记住用户的选择
可以看到new个新的Intent包含旧的Intent的内容，并且如果要是有相应flag并且ClipData和getData有不为Null的，就创建ClipData
1 922 /** 2 923 * Convenience function for creating a {@link #ACTION_CHOOSER} Intent. 3 924 * 4 925 * <p>Builds a new {@link #ACTION_CHOOSER} Intent that wraps the given 5 926 * target intent, also optionally supplying a title. If the target 6 927 * intent has specified {@link #FLAG_GRANT_READ_URI_PERMISSION} or 7 928 * {@link #FLAG_GRANT_WRITE_URI_PERMISSION}, then these flags will also be 8 929 * set in the returned chooser intent, with its ClipData set appropriately: 9 930 * either a direct reflection of {@link #getClipData()} if that is non-null, 10 931 * or a new ClipData built from {@link #getData()}.</p> 11 932 * 12 933 * <p>The caller may optionally supply an {@link IntentSender} to receive a callback 13 934 * when the user makes a choice. This can be useful if the calling application wants 14 935 * to remember the last chosen target and surface it as a more prominent or one-touch 15 936 * affordance elsewhere in the UI for next time.</p> 16 937 * 17 938 * @param target The Intent that the user will be selecting an activity 18 939 * to perform. 19 940 * @param title Optional title that will be displayed in the chooser. 20 941 * @param sender Optional IntentSender to be called when a choice is made. 21 942 * @return Return a new Intent object that you can hand to 22 943 * {@link Context#startActivity(Intent) Context.startActivity()} and 23 944 * related methods. 24 945 */ 25 946 public static Intent createChooser(Intent target, CharSequence title, IntentSender sender) { 26 947 Intent intent = new Intent(ACTION_CHOOSER); 27 948 intent.putExtra(EXTRA_INTENT, target); 28 949 if (title != null) { 29 950 intent.putExtra(EXTRA_TITLE, title); 30 951 } 31 952 32 953 if (sender != null) { 33 954 intent.putExtra(EXTRA_CHOSEN_COMPONENT_INTENT_SENDER, sender); 34 955 } 35 956 36 957 // Migrate any clip data and flags from target. 37 958 int permFlags = target.getFlags() & (FLAG_GRANT_READ_URI_PERMISSION 38 959 | FLAG_GRANT_WRITE_URI_PERMISSION | FLAG_GRANT_PERSISTABLE_URI_PERMISSION 39 960 | FLAG_GRANT_PREFIX_URI_PERMISSION); 40 961 if (permFlags != 0) { 41 962 ClipData targetClipData = target.getClipData(); 42 963 if (targetClipData == null && target.getData() != null) { 43 964 ClipData.Item item = new ClipData.Item(target.getData()); 44 965 String[] mimeTypes; 45 966 if (target.getType() != null) { 46 967 mimeTypes = new String[] { target.getType() }; 47 968 } else { 48 969 mimeTypes = new String[] { }; 49 970 } 50 971 targetClipData = new ClipData(null, mimeTypes, item); 51 972 } 52 973 if (targetClipData != null) { 53 974 intent.setClipData(targetClipData); 54 975 intent.addFlags(permFlags); 55 976 } 56 977 } 57 978 58 979 return intent; 59 980 }
ACTION_GET_CONTENT获取相应的数据的内容，提供的不是具体的URI，而是数据类型。
1 982 /** 2 983 * Activity Action: Allow the user to select a particular kind of data and 3 984 * return it. This is different than {@link #ACTION_PICK} in that here we 4 985 * just say what kind of data is desired, not a URI of existing data from 5 986 * which the user can pick. An ACTION_GET_CONTENT could allow the user to 6 987 * create the data as it runs (for example taking a picture or recording a 7 988 * sound), let them browse over the web and download the desired data, 8 989 * etc. 9 990 * <p> 10 991 * There are two main ways to use this action: if you want a specific kind 11 992 * of data, such as a person contact, you set the MIME type to the kind of 12 993 * data you want and launch it with {@link Context#startActivity(Intent)}. 13 994 * The system will then launch the best application to select that kind 14 995 * of data for you. 15 996 * <p> 16 997 * You may also be interested in any of a set of types of content the user 17 998 * can pick. For example, an e-mail application that wants to allow the 18 999 * user to add an attachment to an e-mail message can use this action to 19 1000 * bring up a list of all of the types of content the user can attach. 20 1001 * <p> 21 1002 * In this case, you should wrap the GET_CONTENT intent with a chooser 22 1003 * (through {@link #createChooser}), which will give the proper interface 23 1004 * for the user to pick how to send your data and allow you to specify 24 1005 * a prompt indicating what they are doing. You will usually specify a 25 1006 * broad MIME type (such as image/* or {@literal *}/*), resulting in a 26 1007 * broad range of content types the user can select from. 27 1008 * <p> 28 1009 * When using such a broad GET_CONTENT action, it is often desirable to 29 1010 * only pick from data that can be represented as a stream. This is 30 1011 * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent. 31 1012 * <p> 32 1013 * Callers can optionally specify {@link #EXTRA_LOCAL_ONLY} to request that 33 1014 * the launched content chooser only returns results representing data that 34 1015 * is locally available on the device. For example, if this extra is set 35 1016 * to true then an image picker should not show any pictures that are available 36 1017 * from a remote server but not already on the local device (thus requiring 37 1018 * they be downloaded when opened). 38 1019 * <p> 39 1020 * If the caller can handle multiple returned items (the user performing 40 1021 * multiple selection), then it can specify {@link #EXTRA_ALLOW_MULTIPLE} 41 1022 * to indicate this. 42 1023 * <p> 43 1024 * Input: {@link #getType} is the desired MIME type to retrieve. Note 44 1025 * that no URI is supplied in the intent, as there are no constraints on 45 1026 * where the returned data originally comes from. You may also include the 46 1027 * {@link #CATEGORY_OPENABLE} if you can only accept data that can be 47 1028 * opened as a stream. You may use {@link #EXTRA_LOCAL_ONLY} to limit content 48 1029 * selection to local data. You may use {@link #EXTRA_ALLOW_MULTIPLE} to 49 1030 * allow the user to select multiple items. 50 1031 * <p> 51 1032 * Output: The URI of the item that was picked. This must be a content: 52 1033 * URI so that any receiver can access it. 53 1034 */ 54 1035 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 55 1036 public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
ACTION_DIAL出现一个拨号界面
1 1037 /** 2 1038 * Activity Action: Dial a number as specified by the data. This shows a 3 1039 * UI with the number being dialed, allowing the user to explicitly 4 1040 * initiate the call. 5 1041 * <p>Input: If nothing, an empty dialer is started; else {@link #getData} 6 1042 * is URI of a phone number to be dialed or a tel: URI of an explicit phone 7 1043 * number. 8 1044 * <p>Output: nothing. 9 1045 */ 10 1046 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 11 1047 public static final String ACTION_DIAL = "android.intent.action.DIAL";
ACTION_CALL直接拨打电话
1 1048 /** 2 1049 * Activity Action: Perform a call to someone specified by the data. 3 1050 * <p>Input: If nothing, an empty dialer is started; else {@link #getData} 4 1051 * is URI of a phone number to be dialed or a tel: URI of an explicit phone 5 1052 * number. 6 1053 * <p>Output: nothing. 7 1054 * 8 1055 * <p>Note: there will be restrictions on which applications can initiate a 9 1056 * call; most applications should use the {@link #ACTION_DIAL}. 10 1057 * <p>Note: this Intent <strong>cannot</strong> be used to call emergency 11 1058 * numbers. Applications can <strong>dial</strong> emergency numbers using 12 1059 * {@link #ACTION_DIAL}, however. 13 1060 * 14 1061 * <p>Note: if you app targets {@link android.os.Build.VERSION_CODES#M M} 15 1062 * and above and declares as using the {@link android.Manifest.permission#CALL_PHONE} 16 1063 * permission which is not granted, then attempting to use this action will 17 1064 * result in a {@link java.lang.SecurityException}. 18 1065 */ 19 1066 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 20 1067 public static final String ACTION_CALL = "android.intent.action.CALL";
ACTION_CALL_EMERGENCY直接拨打紧急电话
1 1068 /** 2 1069 * Activity Action: Perform a call to an emergency number specified by the 3 1070 * data. 4 1071 * <p>Input: {@link #getData} is URI of a phone number to be dialed or a 5 1072 * tel: URI of an explicit phone number. 6 1073 * <p>Output: nothing. 7 1074 * @hide 8 1075 */ 9 1076 public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY"; 10 1077 /**
ACTION_CALL_PRIVILEGED拨打任意类型的电话
1 1077 /** 2 1078 * Activity action: Perform a call to any number (emergency or not) 3 1079 * specified by the data. 4 1080 * <p>Input: {@link #getData} is URI of a phone number to be dialed or a 5 1081 * tel: URI of an explicit phone number. 6 1082 * <p>Output: nothing. 7 1083 * @hide 8 1084 */ 9 1085 public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
ACTION_SIM_ACTIVATION_REQUEST请求激活sim卡
1 1086 /** 2 1087 * Activity action: Activate the current SIM card. If SIM cards do not require activation, 3 1088 * sending this intent is a no-op. 4 1089 * <p>Input: No data should be specified. get*Extra may have an optional 5 1090 * {@link #EXTRA_SIM_ACTIVATION_RESPONSE} field containing a PendingIntent through which to 6 1091 * send the activation result. 7 1092 * <p>Output: nothing. 8 1093 * @hide 9 1094 */ 10 1095 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 11 1096 public static final String ACTION_SIM_ACTIVATION_REQUEST = 12 1097 "android.intent.action.SIM_ACTIVATION_REQUEST";
ACTION_SENDTO发送信息给其他人
1 1098 /** 2 1099 * Activity Action: Send a message to someone specified by the data. 3 1100 * <p>Input: {@link #getData} is URI describing the target. 4 1101 * <p>Output: nothing. 5 1102 */ 6 1103 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 7 1104 public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
ACTION_SEND发送数据
1 1105 /** 2 1106 * Activity Action: Deliver some data to someone else. Who the data is 3 1107 * being delivered to is not specified; it is up to the receiver of this 4 1108 * action to ask the user where the data should be sent. 5 1109 * <p> 6 1110 * When launching a SEND intent, you should usually wrap it in a chooser 7 1111 * (through {@link #createChooser}), which will give the proper interface 8 1112 * for the user to pick how to send your data and allow you to specify 9 1113 * a prompt indicating what they are doing. 10 1114 * <p> 11 1115 * Input: {@link #getType} is the MIME type of the data being sent. 12 1116 * get*Extra can have either a {@link #EXTRA_TEXT} 13 1117 * or {@link #EXTRA_STREAM} field, containing the data to be sent. If 14 1118 * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it 15 1119 * should be the MIME type of the data in EXTRA_STREAM. Use {@literal *}/* 16 1120 * if the MIME type is unknown (this will only allow senders that can 17 1121 * handle generic data streams). If using {@link #EXTRA_TEXT}, you can 18 1122 * also optionally supply {@link #EXTRA_HTML_TEXT} for clients to retrieve 19 1123 * your text with HTML formatting. 20 1124 * <p> 21 1125 * As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, the data 22 1126 * being sent can be supplied through {@link #setClipData(ClipData)}. This 23 1127 * allows you to use {@link #FLAG_GRANT_READ_URI_PERMISSION} when sharing 24 1128 * content: URIs and other advanced features of {@link ClipData}. If 25 1129 * using this approach, you still must supply the same data through the 26 1130 * {@link #EXTRA_TEXT} or {@link #EXTRA_STREAM} fields described below 27 1131 * for compatibility with old applications. If you don't set a ClipData, 28 1132 * it will be copied there for you when calling {@link Context#startActivity(Intent)}. 29 1133 * <p> 30 1134 * Optional standard extras, which may be interpreted by some recipients as 31 1135 * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC}, 32 1136 * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}. 33 1137 * <p> 34 1138 * Output: nothing. 35 1139 */ 36 1140 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 37 1141 public static final String ACTION_SEND = "android.intent.action.SEND";
ACTION_SEND_MULTIPLE发送多个数据
1 1142 /** 2 1143 * Activity Action: Deliver multiple data to someone else. 3 1144 * <p> 4 1145 * Like {@link #ACTION_SEND}, except the data is multiple. 5 1146 * <p> 6 1147 * Input: {@link #getType} is the MIME type of the data being sent. 7 1148 * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link 8 1149 * #EXTRA_STREAM} field, containing the data to be sent. If using 9 1150 * {@link #EXTRA_TEXT}, you can also optionally supply {@link #EXTRA_HTML_TEXT} 10 1151 * for clients to retrieve your text with HTML formatting. 11 1152 * <p> 12 1153 * Multiple types are supported, and receivers should handle mixed types 13 1154 * whenever possible. The right way for the receiver to check them is to 14 1155 * use the content resolver on each URI. The intent sender should try to 15 1156 * put the most concrete mime type in the intent type, but it can fall 16 1157 * back to {@literal <type>/*} or {@literal *}/* as needed. 17 1158 * <p> 18 1159 * e.g. if you are sending image/jpg and image/jpg, the intent's type can 19 1160 * be image/jpg, but if you are sending image/jpg and image/png, then the 20 1161 * intent's type should be image/*. 21 1162 * <p> 22 1163 * As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, the data 23 1164 * being sent can be supplied through {@link #setClipData(ClipData)}. This 24 1165 * allows you to use {@link #FLAG_GRANT_READ_URI_PERMISSION} when sharing 25 1166 * content: URIs and other advanced features of {@link ClipData}. If 26 1167 * using this approach, you still must supply the same data through the 27 1168 * {@link #EXTRA_TEXT} or {@link #EXTRA_STREAM} fields described below 28 1169 * for compatibility with old applications. If you don't set a ClipData, 29 1170 * it will be copied there for you when calling {@link Context#startActivity(Intent)}. 30 1171 * <p> 31 1172 * Optional standard extras, which may be interpreted by some recipients as 32 1173 * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC}, 33 1174 * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}. 34 1175 * <p> 35 1176 * Output: nothing. 36 1177 */ 37 1178 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 38 1179 public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE"; 39 1180 /**
ACTION_ANSWER用来接电话
1 1180 /** 2 1181 * Activity Action: Handle an incoming phone call. 3 1182 * <p>Input: nothing. 4 1183 * <p>Output: nothing. 5 1184 */ 6 1185 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 7 1186 public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
ACTION_INSERT用来插入数据
1 1187 /** 2 1188 * Activity Action: Insert an empty item into the given container. 3 1189 * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*) 4 1190 * in which to place the data. 5 1191 * <p>Output: URI of the new data that was created. 6 1192 */ 7 1193 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 8 1194 public static final String ACTION_INSERT = "android.intent.action.INSERT";
ACTION_PASTE从剪切板里粘贴数据
1 1195 /** 2 1196 * Activity Action: Create a new item in the given container, initializing it 3 1197 * from the current contents of the clipboard. 4 1198 * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*) 5 1199 * in which to place the data. 6 1200 * <p>Output: URI of the new data that was created. 7 1201 */ 8 1202 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 9 1203 public static final String ACTION_PASTE = "android.intent.action.PASTE";
ACTION_DELETE删除数据
1 1204 /** 2 1205 * Activity Action: Delete the given data from its container. 3 1206 * <p>Input: {@link #getData} is URI of data to be deleted. 4 1207 * <p>Output: nothing. 5 1208 */ 6 1209 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 7 1210 public static final String ACTION_DELETE = "android.intent.action.DELETE";
ACTION_RUN运行相应数据
1 1211 /** 2 1212 * Activity Action: Run the data, whatever that means. 3 1213 * <p>Input: ? (Note: this is currently specific to the test harness.) 4 1214 * <p>Output: nothing. 5 1215 */ 6 1216 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 7 1217 public static final String ACTION_RUN = "android.intent.action.RUN";
ACTION_SYNC同步数据
1 1218 /** 2 1219 * Activity Action: Perform a data synchronization. 3 1220 * <p>Input: ? 4 1221 * <p>Output: ? 5 1222 */ 6 1223 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 7 1224 public static final String ACTION_SYNC = "android.intent.action.SYNC";
ACTION_PICK_ACTIVITY选取符合相应Intent-filter的Activity类名
1 1225 /** 2 1226 * Activity Action: Pick an activity given an intent, returning the class 3 1227 * selected. 4 1228 * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent 5 1229 * used with {@link PackageManager#queryIntentActivities} to determine the 6 1230 * set of activities from which to pick. 7 1231 * <p>Output: Class name of the activity that was selected. 8 1232 */ 9 1233 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 10 1234 public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
ACTION_SEARCH用来搜索
1 1235 /** 2 1236 * Activity Action: Perform a search. 3 1237 * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)} 4 1238 * is the text to search for. If empty, simply 5 1239 * enter your search results Activity with the search UI activated. 6 1240 * <p>Output: nothing. 7 1241 */ 8 1242 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 9 1243 public static final String ACTION_SEARCH = "android.intent.action.SEARCH"; 10 1244 /**
ACTION_SYSTEM_TUTORIAL启动系统定义的教程
1 1244 /** 2 1245 * Activity Action: Start the platform-defined tutorial 3 1246 * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)} 4 1247 * is the text to search for. If empty, simply 5 1248 * enter your search results Activity with the search UI activated. 6 1249 * <p>Output: nothing. 7 1250 */ 8 1251 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 9 1252 public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
ACTION_WEB_SEARCH做网络搜索
1 1253 /** 2 1254 * Activity Action: Perform a web search. 3 1255 * <p> 4 1256 * Input: {@link android.app.SearchManager#QUERY 5 1257 * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is 6 1258 * a url starts with http or https, the site will be opened. If it is plain 7 1259 * text, Google search will be applied. 8 1260 * <p> 9 1261 * Output: nothing. 10 1262 */ 11 1263 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 12 1264 public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH"; 13 1265
ACTION_ASSIST用来做辅助操作
1 1266 /** 2 1267 * Activity Action: Perform assist action. 3 1268 * <p> 4 1269 * Input: {@link #EXTRA_ASSIST_PACKAGE}, {@link #EXTRA_ASSIST_CONTEXT}, can provide 5 1270 * additional optional contextual information about where the user was when they 6 1271 * requested the assist; {@link #EXTRA_REFERRER} may be set with additional referrer 7 1272 * information. 8 1273 * Output: nothing. 9 1274 */ 10 1275 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 11 1276 public static final String ACTION_ASSIST = "android.intent.action.ASSIST";
ACTION_VOICE_ASSIST做语音辅助
1 1278 /** 2 1279 * Activity Action: Perform voice assist action. 3 1280 * <p> 4 1281 * Input: {@link #EXTRA_ASSIST_PACKAGE}, {@link #EXTRA_ASSIST_CONTEXT}, can provide 5 1282 * additional optional contextual information about where the user was when they 6 1283 * requested the voice assist. 7 1284 * Output: nothing. 8 1285 * @hide 9 1286 */ 10 1287 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 11 1288 public static final String ACTION_VOICE_ASSIST = "android.intent.action.VOICE_ASSIST";
EXTRA_ASSIST_PACKAGE为正在辅助的前台程序包名，EXTRA_ASSIST_UID为正在辅助的前台程序UID，EXTRA_ASSIST_CONTEXT为正在辅助的程序的上下文环境，EXTRA_ASSIST_INPUT_HINT_KEYBOARD提示使用键盘为主要辅助输入设备，EXTRA_ASSIST_INPUT_DEVICE_ID为辅助设备的device id
1 1290 /** 2 1291 * An optional field on {@link #ACTION_ASSIST} containing the name of the current foreground 3 1292 * application package at the time the assist was invoked. 4 1293 */ 5 1294 public static final String EXTRA_ASSIST_PACKAGE 6 1295 = "android.intent.extra.ASSIST_PACKAGE"; 7 1296 8 1297 /** 9 1298 * An optional field on {@link #ACTION_ASSIST} containing the uid of the current foreground 10 1299 * application package at the time the assist was invoked. 11 1300 */ 12 1301 public static final String EXTRA_ASSIST_UID 13 1302 = "android.intent.extra.ASSIST_UID"; 14 1303 15 1304 /** 16 1305 * An optional field on {@link #ACTION_ASSIST} and containing additional contextual 17 1306 * information supplied by the current foreground app at the time of the assist request. 18 1307 * This is a {@link Bundle} of additional data. 19 1308 */ 20 1309 public static final String EXTRA_ASSIST_CONTEXT 21 1310 = "android.intent.extra.ASSIST_CONTEXT"; 22 1311 23 1312 /** 24 1313 * An optional field on {@link #ACTION_ASSIST} suggesting that the user will likely use a 25 1314 * keyboard as the primary input device for assistance. 26 1315 */ 27 1316 public static final String EXTRA_ASSIST_INPUT_HINT_KEYBOARD = 28 1317 "android.intent.extra.ASSIST_INPUT_HINT_KEYBOARD"; 29 1318 30 1319 /** 31 1320 * An optional field on {@link #ACTION_ASSIST} containing the InputDevice id 32 1321 * that was used to invoke the assist. 33 1322 */ 34 1323 public static final String EXTRA_ASSIST_INPUT_DEVICE_ID = 35 1324 "android.intent.extra.ASSIST_INPUT_DEVICE_ID";
ACTION_ALL_APPS列出所有APP
1 1326 /** 2 1327 * Activity Action: List all available applications. 3 1328 * <p>Input: Nothing. 4 1329 * <p>Output: nothing. 5 1330 */ 6 1331 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 7 1332 public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
ACTION_SET_WALLPAPER显示壁纸设置界面
1 1333 /** 2 1334 * Activity Action: Show settings for choosing wallpaper. 3 1335 * <p>Input: Nothing. 4 1336 * <p>Output: Nothing. 5 1337 */ 6 1338 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 7 1339 public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
ACTION_BUG_REPORT显示bug report界面
1 1341 /** 2 1342 * Activity Action: Show activity for reporting a bug. 3 1343 * <p>Input: Nothing. 4 1344 * <p>Output: Nothing. 5 1345 */ 6 1346 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 7 1347 public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
ACTION_FACTORY_TEST启动工厂测试app
1 1349 /** 2 1350 * Activity Action: Main entry point for factory tests. Only used when 3 1351 * the device is booting in factory test node. The implementing package 4 1352 * must be installed in the system image. 5 1353 * <p>Input: nothing 6 1354 * <p>Output: nothing 7 1355 */ 8 1356 public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
ACTION_CALL_BUTTON显示CALL UI
1 1358 /** 2 1359 * Activity Action: The user pressed the "call" button to go to the dialer 3 1360 * or other appropriate UI for placing a call. 4 1361 * <p>Input: Nothing. 5 1362 * <p>Output: Nothing. 6 1363 */ 7 1364 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 8 1365 public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON"; 9 1366
ACTION_VOICE_COMMAND打开语音指令
1 1367 /** 2 1368 * Activity Action: Start Voice Command. 3 1369 * <p>Input: Nothing. 4 1370 * <p>Output: Nothing. 5 1371 */ 6 1372 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 7 1373 public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
ACTION_SEARCH_LONG_PRESS启动与长按search关联的动作
1 1375 /** 2 1376 * Activity Action: Start action associated with long pressing on the 3 1377 * search key. 4 1378 * <p>Input: Nothing. 5 1379 * <p>Output: Nothing. 6 1380 */ 7 1381 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 8 1382 public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
ACTION_APP_ERROR报告crash/ANR信息
1 1384 /** 2 1385 * Activity Action: The user pressed the "Report" button in the crash/ANR dialog. 3 1386 * This intent is delivered to the package which installed the application, usually 4 1387 * Google Play. 5 1388 * <p>Input: No data is specified. The bug report is passed in using 6 1389 * an {@link #EXTRA_BUG_REPORT} field. 7 1390 * <p>Output: Nothing. 8 1391 * 9 1392 * @see #EXTRA_BUG_REPORT 10 1393 */ 11 1394 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 12 1395 public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR"; 13 1396
ACTION_POWER_USAGE_SUMMARY显示power使用情况
1 1397 /** 2 1398 * Activity Action: Show power usage information to the user. 3 1399 * <p>Input: Nothing. 4 1400 * <p>Output: Nothing. 5 1401 */ 6 1402 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 7 1403 public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY"; 8 1404
ACTION_UPGRADE_SETUP在平台升级后启动设置向导
1 1405 /** 2 1406 * Activity Action: Setup wizard to launch after a platform update. This 3 1407 * activity should have a string meta-data field associated with it, 4 1408 * {@link #METADATA_SETUP_VERSION}, which defines the current version of 5 1409 * the platform for setup. The activity will be launched only if 6 1410 * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the 7 1411 * same value. 8 1412 * <p>Input: Nothing. 9 1413 * <p>Output: Nothing. 10 1414 * @hide 11 1415 */ 12 1416 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 13 1417 public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
ACTION_SHOW_KEYBOARD_SHORTCUTS启动键盘快捷助手屏幕
1 1419 /** 2 1420 * Activity Action: Start the Keyboard Shortcuts Helper screen. 3 1421 * <p>Input: Nothing. 4 1422 * <p>Output: Nothing. 5 1423 * @hide 6 1424 */ 7 1425 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 8 1426 public static final String ACTION_SHOW_KEYBOARD_SHORTCUTS = 9 1427 "android.intent.action.SHOW_KEYBOARD_SHORTCUTS";
ACTION_DISMISS_KEYBOARD_SHORTCUTS解除键盘快捷助手
1 1429 /** 2 1430 * Activity Action: Dismiss the Keyboard Shortcuts Helper screen. 3 1431 * <p>Input: Nothing. 4 1432 * <p>Output: Nothing. 5 1433 * @hide 6 1434 */ 7 1435 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 8 1436 public static final String ACTION_DISMISS_KEYBOARD_SHORTCUTS = 9 1437 "android.intent.action.DISMISS_KEYBOARD_SHORTCUTS";
ACTION_MANAGER_NETWORK_USAGE启动网络流量统计界面
1 1439 /** 2 1440 * Activity Action: Show settings for managing network data usage of a 3 1441 * specific application. Applications should define an activity that offers 4 1442 * options to control data usage. 5 1443 */ 6 1444 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 7 1445 public static final String ACTION_MANAGE_NETWORK_USAGE = 8 1446 "android.intent.action.MANAGE_NETWORK_USAGE";
ACTION_INSTALL_PACKAGE启动app安装界面
1 1448 /** 2 1449 * Activity Action: Launch application installer. 3 1450 * <p> 4 1451 * Input: The data must be a content: or file: URI at which the application 5 1452 * can be retrieved. As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1}, 6 1453 * you can also use "package:<package-name>" to install an application for the 7 1454 * current user that is already installed for another user. You can optionally supply 8 1455 * {@link #EXTRA_INSTALLER_PACKAGE_NAME}, {@link #EXTRA_NOT_UNKNOWN_SOURCE}, 9 1456 * {@link #EXTRA_ALLOW_REPLACE}, and {@link #EXTRA_RETURN_RESULT}. 10 1457 * <p> 11 1458 * Output: If {@link #EXTRA_RETURN_RESULT}, returns whether the install 12 1459 * succeeded. 13 1460 * <p> 14 1461 * <strong>Note:</strong>If your app is targeting API level higher than 22 you 15 1462 * need to hold {@link android.Manifest.permission#REQUEST_INSTALL_PACKAGES} 16 1463 * in order to launch the application installer. 17 1464 * </p> 18 1465 * 19 1466 * @see #EXTRA_INSTALLER_PACKAGE_NAME 20 1467 * @see #EXTRA_NOT_UNKNOWN_SOURCE 21 1468 * @see #EXTRA_RETURN_RESULT 22 1469 */ 23 1470 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 24 1471 public static final String ACTION_INSTALL_PACKAGE = "android.intent.action.INSTALL_PACKAGE";
ACTION_INSTALL_EPHEMERAL_PACKAGE和ACTION_RESOLVE_EPHEMERAl_PACKAGE和暂时行app有关，一个启动临时app安装器，一个是解析临时app
1 1473 /** 2 1474 * Activity Action: Launch ephemeral installer. 3 1475 * <p> 4 1476 * Input: The data must be a http: URI that the ephemeral application is registered 5 1477 * to handle. 6 1478 * <p class="note"> 7 1479 * This is a protected intent that can only be sent by the system. 8 1480 * </p> 9 1481 * 10 1482 * @hide 11 1483 */ 12 1484 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 13 1485 public static final String ACTION_INSTALL_EPHEMERAL_PACKAGE 14 1486 = "android.intent.action.INSTALL_EPHEMERAL_PACKAGE"; 15 1487 16 1488 /** 17 1489 * Service Action: Resolve ephemeral application. 18 1490 * <p> 19 1491 * The system will have a persistent connection to this service. 20 1492 * This is a protected intent that can only be sent by the system. 21 1493 * </p> 22 1494 * 23 1495 * @hide 24 1496 */ 25 1497 @SdkConstant(SdkConstantType.SERVICE_ACTION) 26 1498 public static final String ACTION_RESOLVE_EPHEMERAL_PACKAGE 27 1499 = "android.intent.action.RESOLVE_EPHEMERAL_PACKAGE"; 28 1500
与相关的几个EXTRA，分别是安装的包的名字，是否是未知源安装，app来源，谁发出启动动作的详细信息的URI，谁发出启动动作的详细信息的String，安装发起者UID，是否允许替换，是否返回安装/卸载成功标志，安装结果标志
1 1501 /** 2 1502 * Used as a string extra field with {@link #ACTION_INSTALL_PACKAGE} to install a 3 1503 * package. Specifies the installer package name; this package will receive the 4 1504 * {@link #ACTION_APP_ERROR} intent. 5 1505 */ 6 1506 public static final String EXTRA_INSTALLER_PACKAGE_NAME 7 1507 = "android.intent.extra.INSTALLER_PACKAGE_NAME"; 8 1508 9 1509 /** 10 1510 * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} to install a 11 1511 * package. Specifies that the application being installed should not be 12 1512 * treated as coming from an unknown source, but as coming from the app 13 1513 * invoking the Intent. For this to work you must start the installer with 14 1514 * startActivityForResult(). 15 1515 */ 16 1516 public static final String EXTRA_NOT_UNKNOWN_SOURCE 17 1517 = "android.intent.extra.NOT_UNKNOWN_SOURCE"; 18 1518 19 1519 /** 20 1520 * Used as a URI extra field with {@link #ACTION_INSTALL_PACKAGE} and 21 1521 * {@link #ACTION_VIEW} to indicate the URI from which the local APK in the Intent 22 1522 * data field originated from. 23 1523 */ 24 1524 public static final String EXTRA_ORIGINATING_URI 25 1525 = "android.intent.extra.ORIGINATING_URI"; 26 1526 27 1527 /** 28 1528 * This extra can be used with any Intent used to launch an activity, supplying information 29 1529 * about who is launching that activity. This field contains a {@link android.net.Uri} 30 1530 * object, typically an http: or https: URI of the web site that the referral came from; 31 1531 * it can also use the {@link #URI_ANDROID_APP_SCHEME android-app:} scheme to identify 32 1532 * a native application that it came from. 33 1533 * 34 1534 * <p>To retrieve this value in a client, use {@link android.app.Activity#getReferrer} 35 1535 * instead of directly retrieving the extra. It is also valid for applications to 36 1536 * instead supply {@link #EXTRA_REFERRER_NAME} for cases where they can only create 37 1537 * a string, not a Uri; the field here, if supplied, will always take precedence, 38 1538 * however.</p> 39 1539 * 40 1540 * @see #EXTRA_REFERRER_NAME 41 1541 */ 42 1542 public static final String EXTRA_REFERRER 43 1543 = "android.intent.extra.REFERRER"; 44 1544 45 1545 /** 46 1546 * Alternate version of {@link #EXTRA_REFERRER} that supplies the URI as a String rather 47 1547 * than a {@link android.net.Uri} object. Only for use in cases where Uri objects can 48 1548 * not be created, in particular when Intent extras are supplied through the 49 1549 * {@link #URI_INTENT_SCHEME intent:} or {@link #URI_ANDROID_APP_SCHEME android-app:} 50 1550 * schemes. 51 1551 * 52 1552 * @see #EXTRA_REFERRER 53 1553 */ 54 1554 public static final String EXTRA_REFERRER_NAME 55 1555 = "android.intent.extra.REFERRER_NAME"; 56 1556 57 1557 /** 58 1558 * Used as an int extra field with {@link #ACTION_INSTALL_PACKAGE} and 59 1559 * {@link #ACTION_VIEW} to indicate the uid of the package that initiated the install 60 1560 * @hide 61 1561 */ 62 1562 @SystemApi 63 1563 public static final String EXTRA_ORIGINATING_UID 64 1564 = "android.intent.extra.ORIGINATING_UID"; 65 1565 66 1566 /** 67 1567 * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} to install a 68 1568 * package. Tells the installer UI to skip the confirmation with the user 69 1569 * if the .apk is replacing an existing one. 70 1570 * @deprecated As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, Android 71 1571 * will no longer show an interstitial message about updating existing 72 1572 * applications so this is no longer needed. 73 1573 */ 74 1574 @Deprecated 75 1575 public static final String EXTRA_ALLOW_REPLACE 76 1576 = "android.intent.extra.ALLOW_REPLACE"; 77 1577 78 1578 /** 79 1579 * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} or 80 1580 * {@link #ACTION_UNINSTALL_PACKAGE}. Specifies that the installer UI should 81 1581 * return to the application the result code of the install/uninstall. The returned result 82 1582 * code will be {@link android.app.Activity#RESULT_OK} on success or 83 1583 * {@link android.app.Activity#RESULT_FIRST_USER} on failure. 84 1584 */ 85 1585 public static final String EXTRA_RETURN_RESULT 86 1586 = "android.intent.extra.RETURN_RESULT"; 87 1587 88 1588 /** 89 1589 * Package manager install result code. @hide because result codes are not 90 1590 * yet ready to be exposed. 91 1591 */ 92 1592 public static final String EXTRA_INSTALL_RESULT 93 1593 = "android.intent.extra.INSTALL_RESULT"; 94 1594
ACTION_UNINSTALL_PACKAGE卸载应用，EXTRA_UNINSTALL_ALL_USERS表明是否为所有user卸载
1 1595 /** 2 1596 * Activity Action: Launch application uninstaller. 3 1597 * <p> 4 1598 * Input: The data must be a package: URI whose scheme specific part is 5 1599 * the package name of the current installed package to be uninstalled. 6 1600 * You can optionally supply {@link #EXTRA_RETURN_RESULT}. 7 1601 * <p> 8 1602 * Output: If {@link #EXTRA_RETURN_RESULT}, returns whether the install 9 1603 * succeeded. 10 1604 */ 11 1605 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 12 1606 public static final String ACTION_UNINSTALL_PACKAGE = "android.intent.action.UNINSTALL_PACKAGE"; 13 1607 14 1608 /** 15 1609 * Specify whether the package should be uninstalled for all users. 16 1610 * @hide because these should not be part of normal application flow. 17 1611 */ 18 1612 public static final String EXTRA_UNINSTALL_ALL_USERS 19 1613 = "android.intent.extra.UNINSTALL_ALL_USERS";
METADATA_SETUP_VERSION为当前平台版本
1 1615 /** 2 1616 * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity 3 1617 * describing the last run version of the platform that was setup. 4 1618 * @hide 5 1619 */ 6 1620 public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
ACTION_MANAGE_APP_PERMISSIONS和ACTION_MANAGE_PERMISSIONS启动UI管理权限
1 1622 /** 2 1623 * Activity action: Launch UI to manage the permissions of an app. 3 1624 * <p> 4 1625 * Input: {@link #EXTRA_PACKAGE_NAME} specifies the package whose permissions 5 1626 * will be managed by the launched UI. 6 1627 * </p> 7 1628 * <p> 8 1629 * Output: Nothing. 9 1630 * </p> 10 1631 * 11 1632 * @see #EXTRA_PACKAGE_NAME 12 1633 * 13 1634 * @hide 14 1635 */ 15 1636 @SystemApi 16 1637 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 17 1638 public static final String ACTION_MANAGE_APP_PERMISSIONS = 18 1639 "android.intent.action.MANAGE_APP_PERMISSIONS"; 19 1640 20 1641 /** 21 1642 * Activity action: Launch UI to manage permissions. 22 1643 * <p> 23 1644 * Input: Nothing. 24 1645 * </p> 25 1646 * <p> 26 1647 * Output: Nothing. 27 1648 * </p> 28 1649 * 29 1650 * @hide 30 1651 */ 31 1652 @SystemApi 32 1653 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 33 1654 public static final String ACTION_MANAGE_PERMISSIONS = 34 1655 "android.intent.action.MANAGE_PERMISSIONS"; 35 1656
ACTION_REVIEW_PERMISSIONS，review app的权限
1 1657 /** 2 1658 * Activity action: Launch UI to review permissions for an app. 3 1659 * The system uses this intent if permission review for apps not 4 1660 * supporting the new runtime permissions model is enabled. In 5 1661 * this mode a permission review is required before any of the 6 1662 * app components can run. 7 1663 * <p> 8 1664 * Input: {@link #EXTRA_PACKAGE_NAME} specifies the package whose 9 1665 * permissions will be reviewed (mandatory). 10 1666 * </p> 11 1667 * <p> 12 1668 * Input: {@link #EXTRA_INTENT} specifies a pending intent to 13 1669 * be fired after the permission review (optional). 14 1670 * </p> 15 1671 * <p> 16 1672 * Input: {@link #EXTRA_REMOTE_CALLBACK} specifies a callback to 17 1673 * be invoked after the permission review (optional). 18 1674 * </p> 19 1675 * <p> 20 1676 * Input: {@link #EXTRA_RESULT_NEEDED} specifies whether the intent 21 1677 * passed via {@link #EXTRA_INTENT} needs a result (optional). 22 1678 * </p> 23 1679 * <p> 24 1680 * Output: Nothing. 25 1681 * </p> 26 1682 * 27 1683 * @see #EXTRA_PACKAGE_NAME 28 1684 * @see #EXTRA_INTENT 29 1685 * @see #EXTRA_REMOTE_CALLBACK 30 1686 * @see #EXTRA_RESULT_NEEDED 31 1687 * 32 1688 * @hide 33 1689 */ 34 1690 @SystemApi 35 1691 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 36 1692 public static final String ACTION_REVIEW_PERMISSIONS = 37 1693 "android.intent.action.REVIEW_PERMISSIONS";
下面的EXTRA与ACTION_REVIEW_PERMISSIONS有关，EXTRA_REMOTE_CALLBACK为报告远程结果的回调bundle，EXTRA_PACKAGE_NAME为包名，EXTRA_RESULT_NEEDED说明是否需要返回结果
1 1695 /** 2 1696 * Intent extra: A callback for reporting remote result as a bundle. 3 1697 * <p> 4 1698 * Type: IRemoteCallback 5 1699 * </p> 6 1700 * 7 1701 * @hide 8 1702 */ 9 1703 @SystemApi 10 1704 public static final String EXTRA_REMOTE_CALLBACK = "android.intent.extra.REMOTE_CALLBACK"; 11 1705 12 1706 /** 13 1707 * Intent extra: An app package name. 14 1708 * <p> 15 1709 * Type: String 16 1710 * </p> 17 1711 * 18 1712 */ 19 1713 public static final String EXTRA_PACKAGE_NAME = "android.intent.extra.PACKAGE_NAME"; 20 1714 21 1715 /** 22 1716 * Intent extra: An extra for specifying whether a result is needed. 23 1717 * <p> 24 1718 * Type: boolean 25 1719 * </p> 26 1720 * 27 1721 * @hide 28 1722 */ 29 1723 @SystemApi 30 1724 public static final String EXTRA_RESULT_NEEDED = "android.intent.extra.RESULT_NEEDED"; 31 1725
ACTION_MANAGE_PERMISSION_APPS列举拥有某个权限的app，EXTRA_PERMISSION_NAME为权限名
1 1726 /** 2 1727 * Activity action: Launch UI to manage which apps have a given permission. 3 1728 * <p> 4 1729 * Input: {@link #EXTRA_PERMISSION_NAME} specifies the permission access 5 1730 * to which will be managed by the launched UI. 6 1731 * </p> 7 1732 * <p> 8 1733 * Output: Nothing. 9 1734 * </p> 10 1735 * 11 1736 * @see #EXTRA_PERMISSION_NAME 12 1737 * 13 1738 * @hide 14 1739 */ 15 1740 @SystemApi 16 1741 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 17 1742 public static final String ACTION_MANAGE_PERMISSION_APPS = 18 1743 "android.intent.action.MANAGE_PERMISSION_APPS"; 19 1744 20 1745 /** 21 1746 * Intent extra: The name of a permission. 22 1747 * <p> 23 1748 * Type: String 24 1749 * </p> 25 1750 * 26 1751 * @hide 27 1752 */ 28 1753 @SystemApi 29 1754 public static final String EXTRA_PERMISSION_NAME = "android.intent.extra.PERMISSION_NAME"; 30 1755
下面开始是给BroadcastReceiver接收处理的Action，表明了状态的改变
ACTION_SCREEN_OFF和ACTION_SCREEN_ON对应手机是否可交互，而不是手机是否屏亮屏灭
1 1756 // --------------------------------------------------------------------- 2 1757 // --------------------------------------------------------------------- 3 1758 // Standard intent broadcast actions (see action variable). 4 1759 5 1760 /** 6 1761 * Broadcast Action: Sent when the device goes to sleep and becomes non-interactive. 7 1762 * <p> 8 1763 * For historical reasons, the name of this broadcast action refers to the power 9 1764 * state of the screen but it is actually sent in response to changes in the 10 1765 * overall interactive state of the device. 11 1766 * </p><p> 12 1767 * This broadcast is sent when the device becomes non-interactive which may have 13 1768 * nothing to do with the screen turning off. To determine the 14 1769 * actual state of the screen, use {@link android.view.Display#getState}. 15 1770 * </p><p> 16 1771 * See {@link android.os.PowerManager#isInteractive} for details. 17 1772 * </p> 18 1773 * You <em>cannot</em> receive this through components declared in 19 1774 * manifests, only by explicitly registering for it with 20 1775 * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter) 21 1776 * Context.registerReceiver()}. 22 1777 * 23 1778 * <p class="note">This is a protected intent that can only be sent 24 1779 * by the system. 25 1780 */ 26 1781 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 27 1782 public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF"; 28 1783 29 1784 /** 30 1785 * Broadcast Action: Sent when the device wakes up and becomes interactive. 31 1786 * <p> 32 1787 * For historical reasons, the name of this broadcast action refers to the power 33 1788 * state of the screen but it is actually sent in response to changes in the 34 1789 * overall interactive state of the device. 35 1790 * </p><p> 36 1791 * This broadcast is sent when the device becomes interactive which may have 37 1792 * nothing to do with the screen turning on. To determine the 38 1793 * actual state of the screen, use {@link android.view.Display#getState}. 39 1794 * </p><p> 40 1795 * See {@link android.os.PowerManager#isInteractive} for details. 41 1796 * </p> 42 1797 * You <em>cannot</em> receive this through components declared in 43 1798 * manifests, only by explicitly registering for it with 44 1799 * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter) 45 1800 * Context.registerReceiver()}. 46 1801 * 47 1802 * <p class="note">This is a protected intent that can only be sent 48 1803 * by the system. 49 1804 */ 50 1805 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 51 1806 public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
ACTION_DREAMING_STOPPED和ACTION_DREAMING_STARTED表明屏保开始与停止
1 1808 /** 2 1809 * Broadcast Action: Sent after the system stops dreaming. 3 1810 * 4 1811 * <p class="note">This is a protected intent that can only be sent by the system. 5 1812 * It is only sent to registered receivers.</p> 6 1813 */ 7 1814 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 8 1815 public static final String ACTION_DREAMING_STOPPED = "android.intent.action.DREAMING_STOPPED"; 9 1816 10 1817 /** 11 1818 * Broadcast Action: Sent after the system starts dreaming. 12 1819 * 13 1820 * <p class="note">This is a protected intent that can only be sent by the system. 14 1821 * It is only sent to registered receivers.</p> 15 1822 */ 16 1823 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 17 1824 public static final String ACTION_DREAMING_STARTED = "android.intent.action.DREAMING_STARTED";
ACTION_USER_PRESENT表明设备唤醒后用户呈现出来
1 1826 /** 2 1827 * Broadcast Action: Sent when the user is present after device wakes up (e.g when the 3 1828 * keyguard is gone). 4 1829 * 5 1830 * <p class="note">This is a protected intent that can only be sent 6 1831 * by the system. 7 1832 */ 8 1833 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 9 1834 public static final String ACTION_USER_PRESENT = "android.intent.action.USER_PRESENT";
ACTION_TIME_TICK表明时间改变了；ACTION_TIME_CHANGED表明时间被设置；ACTION_DATE_CHANGED表明日期被改变；ACTION_TIMEZONE_CHANGED表明时间区被改变
1 1836 /** 2 1837 * Broadcast Action: The current time has changed. Sent every 3 1838 * minute. You <em>cannot</em> receive this through components declared 4 1839 * in manifests, only by explicitly registering for it with 5 1840 * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter) 6 1841 * Context.registerReceiver()}. 7 1842 * 8 1843 * <p class="note">This is a protected intent that can only be sent 9 1844 * by the system. 10 1845 */ 11 1846 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 12 1847 public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK"; 13 1848 /** 14 1849 * Broadcast Action: The time was set. 15 1850 */ 16 1851 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 17 1852 public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET"; 18 1853 /** 19 1854 * Broadcast Action: The date has changed. 20 1855 */ 21 1856 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 22 1857 public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED"; 23 1858 /** 24 1859 * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p> 25 1860 * <ul> 26 1861 * <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li> 27 1862 * </ul> 28 1863 * 29 1864 * <p class="note">This is a protected intent that can only be sent 30 1865 * by the system. 31 1866 */ 32 1867 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
33 1868 public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
ACTION_CLEAR_DNS_CACHE表明DNS改变了
1 1869 /** 2 1870 * Clear DNS Cache Action: This is broadcast when networks have changed and old 3 1871 * DNS entries should be tossed. 4 1872 * @hide 5 1873 */ 6 1874 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 7 1875 public static final String ACTION_CLEAR_DNS_CACHE = "android.intent.action.CLEAR_DNS_CACHE";
ACTION_ALARM_CHANGED表明alarm设置或被取消
1 1876 /** 2 1877 * Alarm Changed Action: This is broadcast when the AlarmClock 3 1878 * application's alarm is set or unset. It is used by the 4 1879 * AlarmClock application and the StatusBar service. 5 1880 * @hide 6 1881 */ 7 1882 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 8 1883 public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED"; 9 1884
ACTION_LOCKED_BOOT_COMPLETE表明启动完成，没解锁；ACTION_BOOT_COMPLETE表明启动完成，也解锁了
1 1885 /** 2 1886 * Broadcast Action: This is broadcast once, after the user has finished 3 1887 * booting, but while still in the "locked" state. It can be used to perform 4 1888 * application-specific initialization, such as installing alarms. You must 5 1889 * hold the {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} 6 1890 * permission in order to receive this broadcast. 7 1891 * <p> 8 1892 * This broadcast is sent immediately at boot by all devices (regardless of 9 1893 * direct boot support) running {@link android.os.Build.VERSION_CODES#N} or 10 1894 * higher. Upon receipt of this broadcast, the user is still locked and only 11 1895 * device-protected storage can be accessed safely. If you want to access 12 1896 * credential-protected storage, you need to wait for the user to be 13 1897 * unlocked (typically by entering their lock pattern or PIN for the first 14 1898 * time), after which the {@link #ACTION_USER_UNLOCKED} and 15 1899 * {@link #ACTION_BOOT_COMPLETED} broadcasts are sent. 16 1900 * <p> 17 1901 * To receive this broadcast, your receiver component must be marked as 18 1902 * being {@link ComponentInfo#directBootAware}. 19 1903 * <p class="note"> 20 1904 * This is a protected intent that can only be sent by the system. 21 1905 * 22 1906 * @see Context#createDeviceProtectedStorageContext() 23 1907 */ 24 1908 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 25 1909 public static final String ACTION_LOCKED_BOOT_COMPLETED = "android.intent.action.LOCKED_BOOT_COMPLETED"; 26 1910 27 1911 /** 28 1912 * Broadcast Action: This is broadcast once, after the user has finished 29 1913 * booting. It can be used to perform application-specific initialization, 30 1914 * such as installing alarms. You must hold the 31 1915 * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission in 32 1916 * order to receive this broadcast. 33 1917 * <p> 34 1918 * This broadcast is sent at boot by all devices (both with and without 35 1919 * direct boot support). Upon receipt of this broadcast, the user is 36 1920 * unlocked and both device-protected and credential-protected storage can 37 1921 * accessed safely. 38 1922 * <p> 39 1923 * If you need to run while the user is still locked (before they've entered 40 1924 * their lock pattern or PIN for the first time), you can listen for the 41 1925 * {@link #ACTION_LOCKED_BOOT_COMPLETED} broadcast. 42 1926 * <p class="note"> 43 1927 * This is a protected intent that can only be sent by the system. 44 1928 */ 45 1929 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 46 1930 public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
ACTION_CLOSE_SYSTEM_DIALOGS通知关闭临时系统对话框
1 1931 2 1932 /** 3 1933 * Broadcast Action: This is broadcast when a user action should request a 4 1934 * temporary system dialog to dismiss. Some examples of temporary system 5 1935 * dialogs are the notification window-shade and the recent tasks dialog. 6 1936 */ 7 1937 public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS"; 8 1938 /**
ACTION_PACKAGE_INSTALL触发安装一个包，已被废弃
1 1938 /** 2 1939 * Broadcast Action: Trigger the download and eventual installation 3 1940 * of a package. 4 1941 * <p>Input: {@link #getData} is the URI of the package file to download. 5 1942 * 6 1943 * <p class="note">This is a protected intent that can only be sent 7 1944 * by the system. 8 1945 * 9 1946 * @deprecated This constant has never been used. 10 1947 */ 11 1948 @Deprecated 12 1949 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 13 1950 public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
ACTION_PACKAGE_ADDED,ACTION_PACKAGE_REPLACED表明PACKAGE被安装和被更新
1 1951 /** 2 1952 * Broadcast Action: A new application package has been installed on the 3 1953 * device. The data contains the name of the package. Note that the 4 1954 * newly installed package does <em>not</em> receive this broadcast. 5 1955 * <p>May include the following extras: 6 1956 * <ul> 7 1957 * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package. 8 1958 * <li> {@link #EXTRA_REPLACING} is set to true if this is following 9 1959 * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package. 10 1960 * </ul> 11 1961 * 12 1962 * <p class="note">This is a protected intent that can only be sent 13 1963 * by the system. 14 1964 */ 15 1965 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 16 1966 public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED"; 17 1967 /** 18 1968 * Broadcast Action: A new version of an application package has been 19 1969 * installed, replacing an existing version that was previously installed. 20 1970 * The data contains the name of the package. 21 1971 * <p>May include the following extras: 22 1972 * <ul> 23 1973 * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package. 24 1974 * </ul> 25 1975 * 26 1976 * <p class="note">This is a protected intent that can only be sent 27 1977 * by the system. 28 1978 */ 29 1979 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 30 1980 public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
ACTION_MY_PACKAGE_RELACED表明当前app被更新
1 1981 /** 2 1982 * Broadcast Action: A new version of your application has been installed 3 1983 * over an existing one. This is only sent to the application that was 4 1984 * replaced. It does not contain any additional data; to receive it, just 5 1985 * use an intent filter for this action. 6 1986 * 7 1987 * <p class="note">This is a protected intent that can only be sent 8 1988 * by the system. 9 1989 */ 10 1990 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 11 1991 public static final String ACTION_MY_PACKAGE_REPLACED = "android.intent.action.MY_PACKAGE_REPLACED";
ACTION_PACKAGE_REMOVED表明app被删除，ACTION_PACKAGE_COMPLETELY_REMOVED表明被彻底删除，code和data都没了，也不会被后续replaced
1 1992 /** 2 1993 * Broadcast Action: An existing application package has been removed from 3 1994 * the device. The data contains the name of the package. The package 4 1995 * that is being removed does <em>not</em> receive this Intent. 5 1996 * <ul> 6 1997 * <li> {@link #EXTRA_UID} containing the integer uid previously assigned 7 1998 * to the package. 8 1999 * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire 9 2000 * application -- data and code -- is being removed. 10 2001 * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed 11 2002 * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package. 12 2003 * </ul> 13 2004 * 14 2005 * <p class="note">This is a protected intent that can only be sent 15 2006 * by the system. 16 2007 */ 17 2008 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 18 2009 public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED"; 19 2010 /** 20 2011 * Broadcast Action: An existing application package has been completely 21 2012 * removed from the device. The data contains the name of the package. 22 2013 * This is like {@link #ACTION_PACKAGE_REMOVED}, but only set when 23 2014 * {@link #EXTRA_DATA_REMOVED} is true and 24 2015 * {@link #EXTRA_REPLACING} is false of that broadcast. 25 2016 * 26 2017 * <ul> 27 2018 * <li> {@link #EXTRA_UID} containing the integer uid previously assigned 28 2019 * to the package. 29 2020 * </ul> 30 2021 * 31 2022 * <p class="note">This is a protected intent that can only be sent 32 2023 * by the system. 33 2024 */ 34 2025 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 35 2026 public static final String ACTION_PACKAGE_FULLY_REMOVED 36 2027 = "android.intent.action.PACKAGE_FULLY_REMOVED";
ACTION_PACKAGE_CHANGED表明某个app package被改变了，比如某个component被使能。
1 2028 /** 2 2029 * Broadcast Action: An existing application package has been changed (for 3 2030 * example, a component has been enabled or disabled). The data contains 4 2031 * the name of the package. 5 2032 * <ul> 6 2033 * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package. 7 2034 * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST} containing the class name 8 2035 * of the changed components (or the package name itself). 9 2036 * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the 10 2037 * default action of restarting the application. 11 2038 * </ul> 12 2039 * 13 2040 * <p class="note">This is a protected intent that can only be sent 14 2041 * by the system. 15 2042 */ 16 2043 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 17 2044 public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
ACTION_QUERY_PACKAGE_RESTART询问系统package是否需要被重启
1 2045 /** 2 2046 * @hide 3 2047 * Broadcast Action: Ask system services if there is any reason to 4 2048 * restart the given package. The data contains the name of the 5 2049 * package. 6 2050 * <ul> 7 2051 * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package. 8 2052 * <li> {@link #EXTRA_PACKAGES} String array of all packages to check. 9 2053 * </ul> 10 2054 * 11 2055 * <p class="note">This is a protected intent that can only be sent 12 2056 * by the system. 13 2057 */ 14 2058 @SystemApi 15 2059 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 16 2060 public static final String ACTION_QUERY_PACKAGE_RESTART = "android.intent.action.QUERY_PACKAGE_RESTART";
ACTION_PACKAGE_RESTARTED表明某个package被restarted了
1 2061 /** 2 2062 * Broadcast Action: The user has restarted a package, and all of its 3 2063 * processes have been killed. All runtime state 4 2064 * associated with it (processes, alarms, notifications, etc) should 5 2065 * be removed. Note that the restarted package does <em>not</em> 6 2066 * receive this broadcast. 7 2067 * The data contains the name of the package. 8 2068 * <ul> 9 2069 * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package. 10 2070 * </ul> 11 2071 * 12 2072 * <p class="note">This is a protected intent that can only be sent 13 2073 * by the system. 14 2074 */ 15 2075 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 16 2076 public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
ACTION_PACKAGE_DATA_CLEARED表明程序数据被清空；ACTION_PACKAGES_SUSPENDED表明package被挂起;ACTION_PACKAGES_UNSUSPEND表明package被唤醒；ACTION_UID_REMOVED表明某个UID的用户被移除了
1 2077 /** 2 2078 * Broadcast Action: The user has cleared the data of a package. This should 3 2079 * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of 4 2080 * its persistent data is erased and this broadcast sent. 5 2081 * Note that the cleared package does <em>not</em> 6 2082 * receive this broadcast. The data contains the name of the package. 7 2083 * <ul> 8 2084 * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package. 9 2085 * </ul> 10 2086 * 11 2087 * <p class="note">This is a protected intent that can only be sent 12 2088 * by the system. 13 2089 */ 14 2090 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 15 2091 public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED"; 16 2092 /** 17 2093 * Broadcast Action: Packages have been suspended. 18 2094 * <p>Includes the following extras: 19 2095 * <ul> 20 2096 * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages which have been suspended 21 2097 * </ul> 22 2098 * 23 2099 * <p class="note">This is a protected intent that can only be sent 24 2100 * by the system. It is only sent to registered receivers. 25 2101 */ 26 2102 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 27 2103 public static final String ACTION_PACKAGES_SUSPENDED = "android.intent.action.PACKAGES_SUSPENDED"; 28 2104 /** 29 2105 * Broadcast Action: Packages have been unsuspended. 30 2106 * <p>Includes the following extras: 31 2107 * <ul> 32 2108 * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages which have been unsuspended 33 2109 * </ul> 34 2110 * 35 2111 * <p class="note">This is a protected intent that can only be sent 36 2112 * by the system. It is only sent to registered receivers. 37 2113 */ 38 2114 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 39 2115 public static final String ACTION_PACKAGES_UNSUSPENDED = "android.intent.action.PACKAGES_UNSUSPENDED"; 40 2116 /** 41 2117 * Broadcast Action: A user ID has been removed from the system. The user 42 2118 * ID number is stored in the extra data under {@link #EXTRA_UID}. 43 2119 * 44 2120 * <p class="note">This is a protected intent that can only be sent 45 2121 * by the system. 46 2122 */ 47 2123 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 48 2124 public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
ACTION_PACKAGE_FIRST_LAUNCH帮忙package第一次被启动；ACTION_PACKAGE_NEEDS_VERIFICATION表明package要被验证；ACTION_PACKAGE_VERIFIED表明package已经被验证过
1 2126 /** 2 2127 * Broadcast Action: Sent to the installer package of an application when 3 2128 * that application is first launched (that is the first time it is moved 4 2129 * out of the stopped state). The data contains the name of the package. 5 2130 * 6 2131 * <p class="note">This is a protected intent that can only be sent 7 2132 * by the system. 8 2133 */ 9 2134 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 10 2135 public static final String ACTION_PACKAGE_FIRST_LAUNCH = "android.intent.action.PACKAGE_FIRST_LAUNCH"; 11 2136 12 2137 /** 13 2138 * Broadcast Action: Sent to the system package verifier when a package 14 2139 * needs to be verified. The data contains the package URI. 15 2140 * <p class="note"> 16 2141 * This is a protected intent that can only be sent by the system. 17 2142 * </p> 18 2143 */ 19 2144 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 20 2145 public static final String ACTION_PACKAGE_NEEDS_VERIFICATION = "android.intent.action.PACKAGE_NEEDS_VERIFICATION"; 21 2146 22 2147 /** 23 2148 * Broadcast Action: Sent to the system package verifier when a package is 24 2149 * verified. The data contains the package URI. 25 2150 * <p class="note"> 26 2151 * This is a protected intent that can only be sent by the system. 27 2152 */ 28 2153 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 29 2154 public static final String ACTION_PACKAGE_VERIFIED = "android.intent.action.PACKAGE_VERIFIED"; 30 2155
ACTION_INTENT_FILTER_NEEDS_VERIFICATION告诉系统intent filter verifier，有intent filter需要verification
1 2156 /** 2 2157 * Broadcast Action: Sent to the system intent filter verifier when an 3 2158 * intent filter needs to be verified. The data contains the filter data 4 2159 * hosts to be verified against. 5 2160 * <p class="note"> 6 2161 * This is a protected intent that can only be sent by the system. 7 2162 * </p> 8 2163 * 9 2164 * @hide 10 2165 */ 11 2166 @SystemApi 12 2167 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 13 2168 public static final String ACTION_INTENT_FILTER_NEEDS_VERIFICATION = "android.intent.action.INTENT_FILTER_NEEDS_VERIFICATION";
ACTION_EXTERNAL_APPLICATIONS_AVAILABLE,ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE表明在外部媒体介质上的应用程序列表可用和不可用
1 2170 /** 2 2171 * Broadcast Action: Resources for a set of packages (which were 3 2172 * previously unavailable) are currently 4 2173 * available since the media on which they exist is available. 5 2174 * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a 6 2175 * list of packages whose availability changed. 7 2176 * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a 8 2177 * list of uids of packages whose availability changed. 9 2178 * Note that the 10 2179 * packages in this list do <em>not</em> receive this broadcast. 11 2180 * The specified set of packages are now available on the system. 12 2181 * <p>Includes the following extras: 13 2182 * <ul> 14 2183 * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages 15 2184 * whose resources(were previously unavailable) are currently available. 16 2185 * {@link #EXTRA_CHANGED_UID_LIST} is the set of uids of the 17 2186 * packages whose resources(were previously unavailable) 18 2187 * are currently available. 19 2188 * </ul> 20 2189 * 21 2190 * <p class="note">This is a protected intent that can only be sent 22 2191 * by the system. 23 2192 */ 24 2193 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 25 2194 public static final String ACTION_EXTERNAL_APPLICATIONS_AVAILABLE = 26 2195 "android.intent.action.EXTERNAL_APPLICATIONS_AVAILABLE"; 27 2196 28 2197 /** 29 2198 * Broadcast Action: Resources for a set of packages are currently 30 2199 * unavailable since the media on which they exist is unavailable. 31 2200 * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a 32 2201 * list of packages whose availability changed. 33 2202 * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a 34 2203 * list of uids of packages whose availability changed. 35 2204 * The specified set of packages can no longer be 36 2205 * launched and are practically unavailable on the system. 37 2206 * <p>Inclues the following extras: 38 2207 * <ul> 39 2208 * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages 40 2209 * whose resources are no longer available. 41 2210 * {@link #EXTRA_CHANGED_UID_LIST} is the set of packages 42 2211 * whose resources are no longer available. 43 2212 * </ul> 44 2213 * 45 2214 * <p class="note">This is a protected intent that can only be sent 46 2215 * by the system. 47 2216 */ 48 2217 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 49 2218 public static final String ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE = 50 2219 "android.intent.action.EXTERNAL_APPLICATIONS_UNAVAILABLE"; 51 2220
ACTION_PREFERRED_ACTIVITY_CHANGED表明被优先选择的activity有改动
1 221 /** 2 2222 * Broadcast Action: preferred activities have changed *explicitly*. 3 2223 * 4 2224 * <p>Note there are cases where a preferred activity is invalidated *implicitly*, e.g. 5 2225 * when an app is installed or uninstalled, but in such cases this broadcast will *not* 6 2226 * be sent. 7 2227 * 8 2228 * {@link #EXTRA_USER_HANDLE} contains the user ID in question. 9 2229 * 10 2230 * @hide 11 2231 */ 12 2232 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 13 2233 public static final String ACTION_PREFERRED_ACTIVITY_CHANGED = 14 2234 "android.intent.action.ACTION_PREFERRED_ACTIVITY_CHANGED"; 15 2235
ACTION_WALLPAPER_CHANGED表明壁纸被改了，已被弃用
1 2237 /** 2 2238 * Broadcast Action: The current system wallpaper has changed. See 3 2239 * {@link android.app.WallpaperManager} for retrieving the new wallpaper. 4 2240 * This should <em>only</em> be used to determine when the wallpaper 5 2241 * has changed to show the new wallpaper to the user. You should certainly 6 2242 * never, in response to this, change the wallpaper or other attributes of 7 2243 * it such as the suggested size. That would be crazy, right? You'd cause 8 2244 * all kinds of loops, especially if other apps are doing similar things, 9 2245 * right? Of course. So please don't do this. 10 2246 * 11 2247 * @deprecated Modern applications should use 12 2248 * {@link android.view.WindowManager.LayoutParams#FLAG_SHOW_WALLPAPER 13 2249 * WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER} to have the wallpaper 14 2250 * shown behind their UI, rather than watching for this broadcast and 15 2251 * rendering the wallpaper on their own. 16 2252 */ 17 2253 @Deprecated @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 18 2254 public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
ACTION_CONFIGURATION_CHANGED表明配置被改变了，比如地区，定向等
1 2255 /** 2 2256 * Broadcast Action: The current device {@link android.content.res.Configuration} 3 2257 * (orientation, locale, etc) has changed. When such a change happens, the 4 2258 * UIs (view hierarchy) will need to be rebuilt based on this new 5 2259 * information; for the most part, applications don't need to worry about 6 2260 * this, because the system will take care of stopping and restarting the 7 2261 * application to make sure it sees the new changes. Some system code that 8 2262 * can not be restarted will need to watch for this action and handle it 9 2263 * appropriately. 10 2264 * 11 2265 * <p class="note"> 12 2266 * You <em>cannot</em> receive this through components declared 13 2267 * in manifests, only by explicitly registering for it with 14 2268 * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter) 15 2269 * Context.registerReceiver()}. 16 2270 * 17 2271 * <p class="note">This is a protected intent that can only be sent 18 2272 * by the system. 19 2273 * 20 2274 * @see android.content.res.Configuration 21 2275 */ 22 2276 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 23 2277 public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
ACTION_LOCALE_CHANGED表明地区改变
1 2278 /** 2 2279 * Broadcast Action: The current device's locale has changed. 3 2280 * 4 2281 * <p class="note">This is a protected intent that can only be sent 5 2282 * by the system. 6 2283 */ 7 2284 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 8 2285 public static final String ACTION_LOCALE_CHANGED = "android.intent.action.LOCALE_CHANGED";
ACTION_BATTER_CHANGED表明battery长点状态与级别被改变；ACTION_BATTERY_LOW表明电量低；ACTION_BATTERY_OK表明电量不低了
1 2286 /** 2 2287 * Broadcast Action: This is a <em>sticky broadcast</em> containing the 3 2288 * charging state, level, and other information about the battery. 4 2289 * See {@link android.os.BatteryManager} for documentation on the 5 2290 * contents of the Intent. 6 2291 * 7 2292 * <p class="note"> 8 2293 * You <em>cannot</em> receive this through components declared 9 2294 * in manifests, only by explicitly registering for it with 10 2295 * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter) 11 2296 * Context.registerReceiver()}. See {@link #ACTION_BATTERY_LOW}, 12 2297 * {@link #ACTION_BATTERY_OKAY}, {@link #ACTION_POWER_CONNECTED}, 13 2298 * and {@link #ACTION_POWER_DISCONNECTED} for distinct battery-related 14 2299 * broadcasts that are sent and can be received through manifest 15 2300 * receivers. 16 2301 * 17 2302 * <p class="note">This is a protected intent that can only be sent 18 2303 * by the system. 19 2304 */ 20 2305 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 21 2306 public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED"; 22 2307 /** 23 2308 * Broadcast Action: Indicates low battery condition on the device. 24 2309 * This broadcast corresponds to the "Low battery warning" system dialog. 25 2310 * 26 2311 * <p class="note">This is a protected intent that can only be sent 27 2312 * by the system. 28 2313 */ 29 2314 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 30 2315 public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW"; 31 2316 /** 32 2317 * Broadcast Action: Indicates the battery is now okay after being low. 33 2318 * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has 34 2319 * gone back up to an okay state. 35 2320 * 36 2321 * <p class="note">This is a protected intent that can only be sent 37 2322 * by the system. 38 2323 */ 39 2324 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 40 2325 public static final String ACTION_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY"; 41 2326 /**
ACTION_POWER_CONNECTED和ACTION_POWER_DISCONNECTED表明充电器连接和断开
1 2326 /** 2 2327 * Broadcast Action: External power has been connected to the device. 3 2328 * This is intended for applications that wish to register specifically to this notification. 4 2329 * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to 5 2330 * stay active to receive this notification. This action can be used to implement actions 6 2331 * that wait until power is available to trigger. 7 2332 * 8 2333 * <p class="note">This is a protected intent that can only be sent 9 2334 * by the system. 10 2335 */ 11 2336 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 12 2337 public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED"; 13 2338 /** 14 2339 * Broadcast Action: External power has been removed from the device. 15 2340 * This is intended for applications that wish to register specifically to this notification. 16 2341 * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to 17 2342 * stay active to receive this notification. This action can be used to implement actions 18 2343 * that wait until power is available to trigger. 19 2344 * 20 2345 * <p class="note">This is a protected intent that can only be sent 21 2346 * by the system. 22 2347 */ 23 2348 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 24 2349 public static final String ACTION_POWER_DISCONNECTED = 25 2350 "android.intent.action.ACTION_POWER_DISCONNECTED";
ACTION_SHUTDOWN和ACTION_REQUEST_SHUTDOWN表明系统开始shutdown和要求shutdown
1 2351 /** 2 2352 * Broadcast Action: Device is shutting down. 3 2353 * This is broadcast when the device is being shut down (completely turned 4 2354 * off, not sleeping). Once the broadcast is complete, the final shutdown 5 2355 * will proceed and all unsaved data lost. Apps will not normally need 6 2356 * to handle this, since the foreground activity will be paused as well. 7 2357 * 8 2358 * <p class="note">This is a protected intent that can only be sent 9 2359 * by the system. 10 2360 * <p>May include the following extras: 11 2361 * <ul> 12 2362 * <li> {@link #EXTRA_SHUTDOWN_USERSPACE_ONLY} a boolean that is set to true if this 13 2363 * shutdown is only for userspace processes. If not set, assumed to be false. 14 2364 * </ul> 15 2365 */ 16 2366 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 17 2367 public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN"; 18 2368 /** 19 2369 * Activity Action: Start this activity to request system shutdown. 20 2370 * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true 21 2371 * to request confirmation from the user before shutting down. The optional boolean 22 2372 * extra field {@link #EXTRA_USER_REQUESTED_SHUTDOWN} can be set to true to 23 2373 * indicate that the shutdown is requested by the user. 24 2374 * 25 2375 * <p class="note">This is a protected intent that can only be sent 26 2376 * by the system. 27 2377 * 28 2378 * {@hide} 29 2379 */ 30 2380 public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
ACTION_DEVICE_STORAGE_LOW表明设备存储低；ACTION_DEVICE_STORAGE_OK表明设备存储不在低；ACTION_DEVICE_STORAGE_FULL表明设备存储空间已满；ACTION_DEVICE_STORAGE_NOT_FULL表明设备存储空间不在已满
1 2381 /** 2 2382 * Broadcast Action: A sticky broadcast that indicates low memory 3 2383 * condition on the device 4 2384 * 5 2385 * <p class="note">This is a protected intent that can only be sent 6 2386 * by the system. 7 2387 */ 8 2388 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 9 2389 public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW"; 10 2390 /** 11 2391 * Broadcast Action: Indicates low memory condition on the device no longer exists 12 2392 * 13 2393 * <p class="note">This is a protected intent that can only be sent 14 2394 * by the system. 15 2395 */ 16 2396 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 17 2397 public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK"; 18 2398 /** 19 2399 * Broadcast Action: A sticky broadcast that indicates a memory full 20 2400 * condition on the device. This is intended for activities that want 21 2401 * to be able to fill the data partition completely, leaving only 22 2402 * enough free space to prevent system-wide SQLite failures. 23 2403 * 24 2404 * <p class="note">This is a protected intent that can only be sent 25 2405 * by the system. 26 2406 * 27 2407 * {@hide} 28 2408 */ 29 2409 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 30 2410 public static final String ACTION_DEVICE_STORAGE_FULL = "android.intent.action.DEVICE_STORAGE_FULL"; 31 2411 /** 32 2412 * Broadcast Action: Indicates memory full condition on the device 33 2413 * no longer exists. 34 2414 * 35 2415 * <p class="note">This is a protected intent that can only be sent 36 2416 * by the system. 37 2417 * 38 2418 * {@hide} 39 2419 */ 40 2420 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 41 2421 public static final String ACTION_DEVICE_STORAGE_NOT_FULL = "android.intent.action.DEVICE_STORAGE_NOT_FULL";
ACTION_MANAGE_PACKAGE_STORAGE表明存储空间已满，要来管理存储空间
1 2422 /** 2 2423 * Broadcast Action: Indicates low memory condition notification acknowledged by user 3 2424 * and package management should be started. 4 2425 * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW 5 2426 * notification. 6 2427 */ 7 2428 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 8 2429 public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
ACTION_UMS_CONNECTED表明进入USB MASS Storage模式;ACTION_UMS_DISCONNECTED表明断开USB Mass Storage模式。这两个已经被废弃
1 2430 /** 2 2431 * Broadcast Action: The device has entered USB Mass Storage mode. 3 2432 * This is used mainly for the USB Settings panel. 4 2433 * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified 5 2434 * when the SD card file system is mounted or unmounted 6 2435 * @deprecated replaced by android.os.storage.StorageEventListener 7 2436 */ 8 2437 @Deprecated 9 2438 public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED"; 10 2439 11 2440 /** 12 2441 * Broadcast Action: The device has exited USB Mass Storage mode. 13 2442 * This is used mainly for the USB Settings panel. 14 2443 * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified 15 2444 * when the SD card file system is mounted or unmounted 16 2445 * @deprecated replaced by android.os.storage.StorageEventListener 17 2446 */ 18 2447 @Deprecated 19 2448 public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
ACTION_MEDIA_REMOVED表明外部媒介已经被移除；ACTION_MEIDA_UNMOUNTED表明外部媒介被unmount了；ACTION_MEIDA_CHECKING表明媒介正在被检查；ACTION_MEDIA_NOFS表明外部媒介上没有fs；ACTION_MEDIA_MOUNTED表明外部媒介已经被挂载；ACTION_MEIDA_SHARED表明外部存储介质被share为UMS；ACTION_MEDIA_UNSHARED表明外部媒介不再被share成UMS；ACTION_MEDIA_BAD_REMOVAL表明外部sd卡不在了，但是没有unmount；ACTION_MEDIA_UNMOUNTABLE表明外部媒介存在但是无法mount；ACTION_MEDIA_EJECT表明设备被弹出；ACTION_MEDIA_SCANNER_STARTED表明媒介扫描开始；ACTION_MEDIA_SCANNER_FINISHED表明媒介扫描结束；ACTION_MEDIA_SCANNER_SCAN_FILE表明请求外部媒介扫描某个文件并加入媒体数据库；ACTION_MEDIA_BUTTON表明media按钮被按下
1 2450 /** 2 2451 * Broadcast Action: External media has been removed. 3 2452 * The path to the mount point for the removed media is contained in the Intent.mData field. 4 2453 */ 5 2454 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 6 2455 public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED"; 7 2456 8 2457 /** 9 2458 * Broadcast Action: External media is present, but not mounted at its mount point. 10 2459 * The path to the mount point for the unmounted media is contained in the Intent.mData field. 11 2460 */ 12 2461 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 13 2462 public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED"; 14 2463 15 2464 /** 16 2465 * Broadcast Action: External media is present, and being disk-checked 17 2466 * The path to the mount point for the checking media is contained in the Intent.mData field. 18 2467 */ 19 2468 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 20 2469 public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING"; 21 2470 22 2471 /** 23 2472 * Broadcast Action: External media is present, but is using an incompatible fs (or is blank) 24 2473 * The path to the mount point for the checking media is contained in the Intent.mData field. 25 2474 */ 26 2475 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 27 2476 public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS"; 28 2477 29 2478 /** 30 2479 * Broadcast Action: External media is present and mounted at its mount point. 31 2480 * The path to the mount point for the mounted media is contained in the Intent.mData field. 32 2481 * The Intent contains an extra with name "read-only" and Boolean value to indicate if the 33 2482 * media was mounted read only. 34 2483 */ 35 2484 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 36 2485 public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED"; 37 2486 38 2487 /** 39 2488 * Broadcast Action: External media is unmounted because it is being shared via USB mass storage. 40 2489 * The path to the mount point for the shared media is contained in the Intent.mData field. 41 2490 */ 42 2491 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 43 2492 public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED"; 44 2493 45 2494 /** 46 2495 * Broadcast Action: External media is no longer being shared via USB mass storage. 47 2496 * The path to the mount point for the previously shared media is contained in the Intent.mData field. 48 2497 * 49 2498 * @hide 50 2499 */ 51 2500 public static final String ACTION_MEDIA_UNSHARED = "android.intent.action.MEDIA_UNSHARED"; 52 2501 53 2502 /** 54 2503 * Broadcast Action: External media was removed from SD card slot, but mount point was not unmounted. 55 2504 * The path to the mount point for the removed media is contained in the Intent.mData field. 56 2505 */ 57 2506 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 58 2507 public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL"; 59 2508 60 2509 /** 61 2510 * Broadcast Action: External media is present but cannot be mounted. 62 2511 * The path to the mount point for the unmountable media is contained in the Intent.mData field. 63 2512 */ 64 2513 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 65 2514 public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE"; 66 2515 67 2516 /** 68 2517 * Broadcast Action: User has expressed the desire to remove the external storage media. 69 2518 * Applications should close all files they have open within the mount point when they receive this intent. 70 2519 * The path to the mount point for the media to be ejected is contained in the Intent.mData field. 71 2520 */ 72 2521 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 73 2522 public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT"; 74 2523 75 2524 /** 76 2525 * Broadcast Action: The media scanner has started scanning a directory. 77 2526 * The path to the directory being scanned is contained in the Intent.mData field. 78 2527 */ 79 2528 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 80 2529 public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED"; 81 2530 82 2531 /** 83 2532 * Broadcast Action: The media scanner has finished scanning a directory. 84 2533 * The path to the scanned directory is contained in the Intent.mData field. 85 2534 */ 86 2535 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 87 2536 public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED"; 88 2537 89 2538 /** 90 2539 * Broadcast Action: Request the media scanner to scan a file and add it to the media database. 91 2540 * The path to the file is contained in the Intent.mData field. 92 2541 */ 93 2542 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 94 2543 public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE"; 95 2544 96 2545 /** 97 2546 * Broadcast Action: The "Media Button" was pressed. Includes a single 98 2547 * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that 99 2548 * caused the broadcast. 100 2549 */ 101 2550 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 102 2551 public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
ACTION_CAMERA_BUTTON表明camera按钮被按下了
1 2552 2 2553 /** 3 2554 * Broadcast Action: The "Camera Button" was pressed. Includes a single 4 2555 * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that 5 2556 * caused the broadcast. 6 2557 */ 7 2558 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 8 2559 public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
ACTION_GTALK_SERVICE_CONNECTED和ACTION_GTALK_SERVICE_DISCONNECTED表明gtalk服务连接和断开
1 2561 // *** NOTE: @todo(*) The following really should go into a more domain-specific 2 2562 // location; they are not general-purpose actions. 3 2563 4 2564 /** 5 2565 * Broadcast Action: A GTalk connection has been established. 6 2566 */ 7 2567 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 8 2568 public static final String ACTION_GTALK_SERVICE_CONNECTED = 9 2569 "android.intent.action.GTALK_CONNECTED"; 10 2570 11 2571 /** 12 2572 * Broadcast Action: A GTalk connection has been disconnected. 13 2573 */ 14 2574 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 15 2575 public static final String ACTION_GTALK_SERVICE_DISCONNECTED = 16 2576 "android.intent.action.GTALK_DISCONNECTED"; 17 2577
ACTION_INPUT_METHOD_CHANGED表明输入法改变
1 2578 /** 2 2579 * Broadcast Action: An input method has been changed. 3 2580 */ 4 2581 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 5 2582 public static final String ACTION_INPUT_METHOD_CHANGED = 6 2583 "android.intent.action.INPUT_METHOD_CHANGED"; 7 2584
ACTION_AIRPLANE_MODE_CHANGED表明进入还是退出飞行模式
1 2585 /** 2 2586 * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or 3 2587 * more radios have been turned off or on. The intent will have the following extra value:</p> 4 2588 * <ul> 5 2589 * <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true, 6 2590 * then cell radio and possibly other radios such as bluetooth or WiFi may have also been 7 2591 * turned off</li> 8 2592 * </ul> 9 2593 * 10 2594 * <p class="note">This is a protected intent that can only be sent by the system.</p> 11 2595 */ 12 2596 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 13 2597 public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
ACTION_PROVIDER_CHANGED表明content provider维护的内容有变化。
1 2599 /** 2 2600 * Broadcast Action: Some content providers have parts of their namespace 3 2601 * where they publish new events or items that the user may be especially 4 2602 * interested in. For these things, they may broadcast this action when the 5 2603 * set of interesting items change. 6 2604 * 7 2605 * For example, GmailProvider sends this notification when the set of unread 8 2606 * mail in the inbox changes. 9 2607 * 10 2608 * <p>The data of the intent identifies which part of which provider 11 2609 * changed. When queried through the content resolver, the data URI will 12 2610 * return the data set in question. 13 2611 * 14 2612 * <p>The intent will have the following extra values: 15 2613 * <ul> 16 2614 * <li><em>count</em> - The number of items in the data set. This is the 17 2615 * same as the number of items in the cursor returned by querying the 18 2616 * data URI. </li> 19 2617 * </ul> 20 2618 * 21 2619 * This intent will be sent at boot (if the count is non-zero) and when the 22 2620 * data set changes. It is possible for the data set to change without the 23 2621 * count changing (for example, if a new unread message arrives in the same 24 2622 * sync operation in which a message is archived). The phone should still 25 2623 * ring/vibrate/etc as normal in this case. 26 2624 */ 27 2625 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 28 2626 public static final String ACTION_PROVIDER_CHANGED = 29 2627 "android.intent.action.PROVIDER_CHANGED";
ACTION_HEADSET_PLUG表明有耳机插入或拔出
1 2629 /** 2 2630 * Broadcast Action: Wired Headset plugged in or unplugged. 3 2631 * 4 2632 * Same as {@link android.media.AudioManager#ACTION_HEADSET_PLUG}, to be consulted for value 5 2633 * and documentation. 6 2634 * <p>If the minimum SDK version of your application is 7 2635 * {@link android.os.Build.VERSION_CODES#LOLLIPOP}, it is recommended to refer 8 2636 * to the <code>AudioManager</code> constant in your receiver registration code instead. 9 2637 */ 10 2638 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 11 2639 public static final String ACTION_HEADSET_PLUG = android.media.AudioManager.ACTION_HEADSET_PLUG;
ACTION_ADVANCED_SETTINGS_CHANGED表明切换到了高级设置上
1 2641 /** 2 2642 * <p>Broadcast Action: The user has switched on advanced settings in the settings app:</p> 3 2643 * <ul> 4 2644 * <li><em>state</em> - A boolean value indicating whether the settings is on or off.</li> 5 2645 * </ul> 6 2646 * 7 2647 * <p class="note">This is a protected intent that can only be sent 8 2648 * by the system. 9 2649 * 10 2650 * @hide 11 2651 */ 12 2652 //@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 13 2653 public static final String ACTION_ADVANCED_SETTINGS_CHANGED 14 2654 = "android.intent.action.ADVANCED_SETTINGS";
ACTION_APPLICATION_RESTRICTRATIONS_CHANGED表明应用限制被改变
1 2656 /** 2 2657 * Broadcast Action: Sent after application restrictions are changed. 3 2658 * 4 2659 * <p class="note">This is a protected intent that can only be sent 5 2660 * by the system.</p> 6 2661 */ 7 2662 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 8 2663 public static final String ACTION_APPLICATION_RESTRICTIONS_CHANGED = 9 2664 "android.intent.action.APPLICATION_RESTRICTIONS_CHANGED";
ACTION_NEW_OUTGOING_CALL表明有新的外拨电话，可以接受这个Intent修改要拨出的号码或者阻止拨出
1 2666 /** 2 2667 * Broadcast Action: An outgoing call is about to be placed. 3 2668 * 4 2669 * <p>The Intent will have the following extra value:</p> 5 2670 * <ul> 6 2671 * <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> - 7 2672 * the phone number originally intended to be dialed.</li> 8 2673 * </ul> 9 2674 * <p>Once the broadcast is finished, the resultData is used as the actual 10 2675 * number to call. If <code>null</code>, no call will be placed.</p> 11 2676 * <p>It is perfectly acceptable for multiple receivers to process the 12 2677 * outgoing call in turn: for example, a parental control application 13 2678 * might verify that the user is authorized to place the call at that 14 2679 * time, then a number-rewriting application might add an area code if 15 2680 * one was not specified.</p> 16 2681 * <p>For consistency, any receiver whose purpose is to prohibit phone 17 2682 * calls should have a priority of 0, to ensure it will see the final 18 2683 * phone number to be dialed. 19 2684 * Any receiver whose purpose is to rewrite phone numbers to be called 20 2685 * should have a positive priority. 21 2686 * Negative priorities are reserved for the system for this broadcast; 22 2687 * using them may cause problems.</p> 23 2688 * <p>Any BroadcastReceiver receiving this Intent <em>must not</em> 24 2689 * abort the broadcast.</p> 25 2690 * <p>Emergency calls cannot be intercepted using this mechanism, and 26 2691 * other calls cannot be modified to call emergency numbers using this 27 2692 * mechanism. 28 2693 * <p>Some apps (such as VoIP apps) may want to redirect the outgoing 29 2694 * call to use their own service instead. Those apps should first prevent 30 2695 * the call from being placed by setting resultData to <code>null</code> 31 2696 * and then start their own app to make the call. 32 2697 * <p>You must hold the 33 2698 * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS} 34 2699 * permission to receive this Intent.</p> 35 2700 * 36 2701 * <p class="note">This is a protected intent that can only be sent 37 2702 * by the system. 38 2703 */ 39 2704 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 40 2705 public static final String ACTION_NEW_OUTGOING_CALL = 41 2706 "android.intent.action.NEW_OUTGOING_CALL"; 42 2707
ACTION_REBOOT要求设备reboot
1 2708 /** 2 2709 * Broadcast Action: Have the device reboot. This is only for use by 3 2710 * system code. 4 2711 * 5 2712 * <p class="note">This is a protected intent that can only be sent 6 2713 * by the system. 7 2714 */ 8 2715 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 9 2716 public static final String ACTION_REBOOT = 10 2717 "android.intent.action.REBOOT";
ACTION_DOCK_EVENT表明dock状态改变
1 2719 /** 2 2720 * Broadcast Action: A sticky broadcast for changes in the physical 3 2721 * docking state of the device. 4 2722 * 5 2723 * <p>The intent will have the following extra values: 6 2724 * <ul> 7 2725 * <li><em>{@link #EXTRA_DOCK_STATE}</em> - the current dock 8 2726 * state, indicating which dock the device is physically in.</li> 9 2727 * </ul> 10 2728 * <p>This is intended for monitoring the current physical dock state. 11 2729 * See {@link android.app.UiModeManager} for the normal API dealing with 12 2730 * dock mode changes. 13 2731 */ 14 2732 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 15 2733 public static final String ACTION_DOCK_EVENT = 16 2734 "android.intent.action.DOCK_EVENT";
ACTION_IDLE_MAINTENCE_START和ACTION_IDLE_MAINTENCE_STOP表明设备不与用户交互，可以做耗时的动作，需要拿wakelock来保证设备不会睡眠
1 2736 /** 2 2737 * Broadcast Action: A broadcast when idle maintenance can be started. 3 2738 * This means that the user is not interacting with the device and is 4 2739 * not expected to do so soon. Typical use of the idle maintenance is 5 2740 * to perform somehow expensive tasks that can be postponed at a moment 6 2741 * when they will not degrade user experience. 7 2742 * <p> 8 2743 * <p class="note">In order to keep the device responsive in case of an 9 2744 * unexpected user interaction, implementations of a maintenance task 10 2745 * should be interruptible. In such a scenario a broadcast with action 11 2746 * {@link #ACTION_IDLE_MAINTENANCE_END} will be sent. In other words, you 12 2747 * should not do the maintenance work in 13 2748 * {@link BroadcastReceiver#onReceive(Context, Intent)}, rather start a 14 2749 * maintenance service by {@link Context#startService(Intent)}. Also 15 2750 * you should hold a wake lock while your maintenance service is running 16 2751 * to prevent the device going to sleep. 17 2752 * </p> 18 2753 * <p> 19 2754 * <p class="note">This is a protected intent that can only be sent by 20 2755 * the system. 21 2756 * </p> 22 2757 * 23 2758 * @see #ACTION_IDLE_MAINTENANCE_END 24 2759 * 25 2760 * @hide 26 2761 */ 27 2762 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 28 2763 public static final String ACTION_IDLE_MAINTENANCE_START = 29 2764 "android.intent.action.ACTION_IDLE_MAINTENANCE_START"; 30 2765 31 2766 /** 32 2767 * Broadcast Action: A broadcast when idle maintenance should be stopped. 33 2768 * This means that the user was not interacting with the device as a result 34 2769 * of which a broadcast with action {@link #ACTION_IDLE_MAINTENANCE_START} 35 2770 * was sent and now the user started interacting with the device. Typical 36 2771 * use of the idle maintenance is to perform somehow expensive tasks that 37 2772 * can be postponed at a moment when they will not degrade user experience. 38 2773 * <p> 39 2774 * <p class="note">In order to keep the device responsive in case of an 40 2775 * unexpected user interaction, implementations of a maintenance task 41 2776 * should be interruptible. Hence, on receiving a broadcast with this 42 2777 * action, the maintenance task should be interrupted as soon as possible. 43 2778 * In other words, you should not do the maintenance work in 44 2779 * {@link BroadcastReceiver#onReceive(Context, Intent)}, rather stop the 45 2780 * maintenance service that was started on receiving of 46 2781 * {@link #ACTION_IDLE_MAINTENANCE_START}.Also you should release the wake 47 2782 * lock you acquired when your maintenance service started. 48 2783 * </p> 49 2784 * <p class="note">This is a protected intent that can only be sent 50 2785 * by the system. 51 2786 * 52 2787 * @see #ACTION_IDLE_MAINTENANCE_START 53 2788 * 54 2789 * @hide 55 2790 */ 56 2791 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 57 2792 public static final String ACTION_IDLE_MAINTENANCE_END = 58 2793 "android.intent.action.ACTION_IDLE_MAINTENANCE_END";
ACTION_REMOTE_INTENT表明remote intent将会发出
1 2795 /** 2 2796 * Broadcast Action: a remote intent is to be broadcasted. 3 2797 * 4 2798 * A remote intent is used for remote RPC between devices. The remote intent 5 2799 * is serialized and sent from one device to another device. The receiving 6 2800 * device parses the remote intent and broadcasts it. Note that anyone can 7 2801 * broadcast a remote intent. However, if the intent receiver of the remote intent 8 2802 * does not trust intent broadcasts from arbitrary intent senders, it should require 9 2803 * the sender to hold certain permissions so only trusted sender's broadcast will be 10 2804 * let through. 11 2805 * @hide 12 2806 */ 13 2807 public static final String ACTION_REMOTE_INTENT = 14 2808 "com.google.android.c2dm.intent.RECEIVE"; 15 2809
ACTION_PRE_BOOT_COMPLETED在系统升级重启之后发出
1 2810 /** 2 2811 * Broadcast Action: This is broadcast once when the user is booting after a 3 2812 * system update. It can be used to perform cleanup or upgrades after a 4 2813 * system update. 5 2814 * <p> 6 2815 * This broadcast is sent after the {@link #ACTION_LOCKED_BOOT_COMPLETED} 7 2816 * broadcast but before the {@link #ACTION_BOOT_COMPLETED} broadcast. It's 8 2817 * only sent when the {@link Build#FINGERPRINT} has changed, and it's only 9 2818 * sent to receivers in the system image. 10 2819 * 11 2820 * @hide 12 2821 */ 13 2822 public static final String ACTION_PRE_BOOT_COMPLETED = 14 2823 "android.intent.action.PRE_BOOT_COMPLETED";
ACTION_GET_RESTRICTION_ENTRIES表明询问app，获取对特定用户做权限限制的条目
1 2810 /** 2 2811 * Broadcast Action: This is broadcast once when the user is booting after a 3 2812 * system update. It can be used to perform cleanup or upgrades after a 4 2813 * system update. 5 2814 * <p> 6 2815 * This broadcast is sent after the {@link #ACTION_LOCKED_BOOT_COMPLETED} 7 2816 * broadcast but before the {@link #ACTION_BOOT_COMPLETED} broadcast. It's 8 2817 * only sent when the {@link Build#FINGERPRINT} has changed, and it's only 9 2818 * sent to receivers in the system image. 10 2819 * 11 2820 * @hide 12 2821 */ 13 2822 public static final String ACTION_PRE_BOOT_COMPLETED = 14 2823 "android.intent.action.PRE_BOOT_COMPLETED";
ACTION_USER_INITIALIZE表明新用户第一次被启动，通知系统app；ACTION_USER_FOREGROUND表明用户被切换到前台，ACTION_USER_BACKGROUND表明用户被切换到后台；ACTION_USER_ADD表明user被添加进来；ACTION_USER_STARTED表明user被启动了；ACTION_USER_STARTING表明user正在被启动；ACTION_USER_STOPPING表面那个user正在被停止；ACTION_USER_STOPPED表明user被停止了；ACTION_USER_REMOVED表明用户被移除；ACTION_USER_SWITCHED表明user被切换；ACTION_USER_UNLOCKED表明存储分区被解锁；ACTION_USER_INFO_CHANGED表明user信息改变
1 2842 /** 2 2843 * Sent the first time a user is starting, to allow system apps to 3 2844 * perform one time initialization. (This will not be seen by third 4 2845 * party applications because a newly initialized user does not have any 5 2846 * third party applications installed for it.) This is sent early in 6 2847 * starting the user, around the time the home app is started, before 7 2848 * {@link #ACTION_BOOT_COMPLETED} is sent. This is sent as a foreground 8 2849 * broadcast, since it is part of a visible user interaction; be as quick 9 2850 * as possible when handling it. 10 2851 */ 11 2852 public static final String ACTION_USER_INITIALIZE = 12 2853 "android.intent.action.USER_INITIALIZE"; 13 2854 14 2855 /** 15 2856 * Sent when a user switch is happening, causing the process's user to be 16 2857 * brought to the foreground. This is only sent to receivers registered 17 2858 * through {@link Context#registerReceiver(BroadcastReceiver, IntentFilter) 18 2859 * Context.registerReceiver}. It is sent to the user that is going to the 19 2860 * foreground. This is sent as a foreground 20 2861 * broadcast, since it is part of a visible user interaction; be as quick 21 2862 * as possible when handling it. 22 2863 */ 23 2864 public static final String ACTION_USER_FOREGROUND = 24 2865 "android.intent.action.USER_FOREGROUND"; 25 2866 26 2867 /** 27 2868 * Sent when a user switch is happening, causing the process's user to be 28 2869 * sent to the background. This is only sent to receivers registered 29 2870 * through {@link Context#registerReceiver(BroadcastReceiver, IntentFilter) 30 2871 * Context.registerReceiver}. It is sent to the user that is going to the 31 2872 * background. This is sent as a foreground 32 2873 * broadcast, since it is part of a visible user interaction; be as quick 33 2874 * as possible when handling it. 34 2875 */ 35 2876 public static final String ACTION_USER_BACKGROUND = 36 2877 "android.intent.action.USER_BACKGROUND"; 37 2878 38 2879 /** 39 2880 * Broadcast sent to the system when a user is added. Carries an extra 40 2881 * EXTRA_USER_HANDLE that has the userHandle of the new user. It is sent to 41 2882 * all running users. You must hold 42 2883 * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast. 43 2884 * @hide 44 2885 */ 45 2886 public static final String ACTION_USER_ADDED = 46 2887 "android.intent.action.USER_ADDED"; 47 2888 48 2889 /** 49 2890 * Broadcast sent by the system when a user is started. Carries an extra 50 2891 * EXTRA_USER_HANDLE that has the userHandle of the user. This is only sent to 51 2892 * registered receivers, not manifest receivers. It is sent to the user 52 2893 * that has been started. This is sent as a foreground 53 2894 * broadcast, since it is part of a visible user interaction; be as quick 54 2895 * as possible when handling it. 55 2896 * @hide 56 2897 */ 57 2898 public static final String ACTION_USER_STARTED = 58 2899 "android.intent.action.USER_STARTED"; 59 2900 60 2901 /** 61 2902 * Broadcast sent when a user is in the process of starting. Carries an extra 62 2903 * EXTRA_USER_HANDLE that has the userHandle of the user. This is only 63 2904 * sent to registered receivers, not manifest receivers. It is sent to all 64 2905 * users (including the one that is being started). You must hold 65 2906 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS} to receive 66 2907 * this broadcast. This is sent as a background broadcast, since 67 2908 * its result is not part of the primary UX flow; to safely keep track of 68 2909 * started/stopped state of a user you can use this in conjunction with 69 2910 * {@link #ACTION_USER_STOPPING}. It is <b>not</b> generally safe to use with 70 2911 * other user state broadcasts since those are foreground broadcasts so can 71 2912 * execute in a different order. 72 2913 * @hide 73 2914 */ 74 2915 public static final String ACTION_USER_STARTING = 75 2916 "android.intent.action.USER_STARTING"; 76 2917 77 2918 /** 78 2919 * Broadcast sent when a user is going to be stopped. Carries an extra 79 2920 * EXTRA_USER_HANDLE that has the userHandle of the user. This is only 80 2921 * sent to registered receivers, not manifest receivers. It is sent to all 81 2922 * users (including the one that is being stopped). You must hold 82 2923 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS} to receive 83 2924 * this broadcast. The user will not stop until all receivers have 84 2925 * handled the broadcast. This is sent as a background broadcast, since 85 2926 * its result is not part of the primary UX flow; to safely keep track of 86 2927 * started/stopped state of a user you can use this in conjunction with 87 2928 * {@link #ACTION_USER_STARTING}. It is <b>not</b> generally safe to use with 88 2929 * other user state broadcasts since those are foreground broadcasts so can 89 2930 * execute in a different order. 90 2931 * @hide 91 2932 */ 92 2933 public static final String ACTION_USER_STOPPING = 93 2934 "android.intent.action.USER_STOPPING"; 94 2935 95 2936 /** 96 2937 * Broadcast sent to the system when a user is stopped. Carries an extra 97 2938 * EXTRA_USER_HANDLE that has the userHandle of the user. This is similar to 98 2939 * {@link #ACTION_PACKAGE_RESTARTED}, but for an entire user instead of a 99 2940 * specific package. This is only sent to registered receivers, not manifest 100 2941 * receivers. It is sent to all running users <em>except</em> the one that 101 2942 * has just been stopped (which is no longer running). 102 2943 * @hide 103 2944 */ 104 2945 public static final String ACTION_USER_STOPPED = 105 2946 "android.intent.action.USER_STOPPED"; 106 2947 107 2948 /** 108 2949 * Broadcast sent to the system when a user is removed. Carries an extra EXTRA_USER_HANDLE that has 109 2950 * the userHandle of the user. It is sent to all running users except the 110 2951 * one that has been removed. The user will not be completely removed until all receivers have 111 2952 * handled the broadcast. You must hold 112 2953 * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast. 113 2954 * @hide 114 2955 */ 115 2956 public static final String ACTION_USER_REMOVED = 116 2957 "android.intent.action.USER_REMOVED"; 117 2958 118 2959 /** 119 2960 * Broadcast sent to the system when the user switches. Carries an extra EXTRA_USER_HANDLE that has 120 2961 * the userHandle of the user to become the current one. This is only sent to 121 2962 * registered receivers, not manifest receivers. It is sent to all running users. 122 2963 * You must hold 123 2964 * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast. 124 2965 * @hide 125 2966 */ 126 2967 public static final String ACTION_USER_SWITCHED = 127 2968 "android.intent.action.USER_SWITCHED"; 128 2969 129 2970 /** 130 2971 * Broadcast Action: Sent when the credential-encrypted private storage has 131 2972 * become unlocked for the target user. This is only sent to registered 132 2973 * receivers, not manifest receivers. 133 2974 */ 134 2975 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 135 2976 public static final String ACTION_USER_UNLOCKED = "android.intent.action.USER_UNLOCKED"; 136 2977 137 2978 /** 138 2979 * Broadcast sent to the system when a user's information changes. Carries an extra 139 2980 * {@link #EXTRA_USER_HANDLE} to indicate which user's information changed. 140 2981 * This is only sent to registered receivers, not manifest receivers. It is sent to all users. 141 2982 * @hide 142 2983 */ 143 2984 public static final String ACTION_USER_INFO_CHANGED = 144 2985 "android.intent.action.USER_INFO_CHANGED";
ACTION_MANAGED_PROFILE_ADDED表明被管理的用户配置被添加；ACTION_MANAGED_PROFILE_REMOVED表明被管理的用户配置被移除；ACTION_MANAGED_PROFILE_UNLOCKED表明相关用户配置的存储分区被解锁；ACTION_MANAGED_PROFILE_AVAILABLE表明相关用户配置可用；ACTION_MANAGED_PROFILE_UNAVAILABLE表明相关用户配置不可用
1 3019 /** 2 3020 * Broadcast sent to the primary user when an associated managed profile has become available. 3 3021 * Currently this includes when the user disables quiet mode for the profile. Carries an extra 4 3022 * {@link #EXTRA_USER} that specifies the UserHandle of the profile. When quiet mode is changed, 5 3023 * this broadcast will carry a boolean extra {@link #EXTRA_QUIET_MODE} indicating the new state 6 3024 * of quiet mode. This is only sent to registered receivers, not manifest receivers. 7 3025 */ 8 3026 public static final String ACTION_MANAGED_PROFILE_AVAILABLE = 9 3027 "android.intent.action.MANAGED_PROFILE_AVAILABLE"; 10 3028 11 3029 /** 12 3030 * Broadcast sent to the primary user when an associated managed profile has become unavailable. 13 3031 * Currently this includes when the user enables quiet mode for the profile. Carries an extra 14 3032 * {@link #EXTRA_USER} that specifies the UserHandle of the profile. When quiet mode is changed, 15 3033 * this broadcast will carry a boolean extra {@link #EXTRA_QUIET_MODE} indicating the new state 16 3034 * of quiet mode. This is only sent to registered receivers, not manifest receivers. 17 3035 */ 18 3036 public static final String ACTION_MANAGED_PROFILE_UNAVAILABLE = 19 3037 "android.intent.action.MANAGED_PROFILE_UNAVAILABLE";
ACTION_QUICK_CLOCK表明选择了快速clock widget
1 3039 /** 2 3040 * Sent when the user taps on the clock widget in the system's "quick settings" area. 3 3041 */ 4 3042 public static final String ACTION_QUICK_CLOCK = 5 3043 "android.intent.action.QUICK_CLOCK"; 6 3044
ACTION_SHOW_BRIGHTNESS_DIALOG显示亮度调节对话框
1 3039 /** 2 3040 * Sent when the user taps on the clock widget in the system's "quick settings" area. 3 3041 */ 4 3042 public static final String ACTION_QUICK_CLOCK = 5 3043 "android.intent.action.QUICK_CLOCK"; 6 3044
ACTION_GLOBAL_BUTTON表明一个全局button被按到
1 3052 /** 2 3053 * Broadcast Action: A global button was pressed. Includes a single 3 3054 * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that 4 3055 * caused the broadcast. 5 3056 * @hide 6 3057 */ 7 3058 public static final String ACTION_GLOBAL_BUTTON = "android.intent.action.GLOBAL_BUTTON";
ACTION_MEDIA_RESOURCE_GRANTED表明媒体资源被某个package获取到
1 3060 /** 2 3061 * Broadcast Action: Sent when media resource is granted. 3 3062 * <p> 4 3063 * {@link #EXTRA_PACKAGES} specifies the packages on the process holding the media resource 5 3064 * granted. 6 3065 * </p> 7 3066 * <p class="note"> 8 3067 * This is a protected intent that can only be sent by the system. 9 3068 * </p> 10 3069 * <p class="note"> 11 3070 * This requires {@link android.Manifest.permission#RECEIVE_MEDIA_RESOURCE_USAGE} permission. 12 3071 * </p> 13 3072 * 14 3073 * @hide 15 3074 */ 16 3075 public static final String ACTION_MEDIA_RESOURCE_GRANTED = 17 3076 "android.intent.action.MEDIA_RESOURCE_GRANTED";
ACTION_OPEN_DOCUMENT表明允许用户选择并获取一个或多个文件;ACTION_CREATE_DOCUMENT表明创建一个文件
1 3078 /** 2 3079 * Activity Action: Allow the user to select and return one or more existing 3 3080 * documents. When invoked, the system will display the various 4 3081 * {@link DocumentsProvider} instances installed on the device, letting the 5 3082 * user interactively navigate through them. These documents include local 6 3083 * media, such as photos and video, and documents provided by installed 7 3084 * cloud storage providers. 8 3085 * <p> 9 3086 * Each document is represented as a {@code content://} URI backed by a 10 3087 * {@link DocumentsProvider}, which can be opened as a stream with 11 3088 * {@link ContentResolver#openFileDescriptor(Uri, String)}, or queried for 12 3089 * {@link android.provider.DocumentsContract.Document} metadata. 13 3090 * <p> 14 3091 * All selected documents are returned to the calling application with 15 3092 * persistable read and write permission grants. If you want to maintain 16 3093 * access to the documents across device reboots, you need to explicitly 17 3094 * take the persistable permissions using 18 3095 * {@link ContentResolver#takePersistableUriPermission(Uri, int)}. 19 3096 * <p> 20 3097 * Callers must indicate the acceptable document MIME types through 21 3098 * {@link #setType(String)}. For example, to select photos, use 22 3099 * {@code image/*}. If multiple disjoint MIME types are acceptable, define 23 3100 * them in {@link #EXTRA_MIME_TYPES} and {@link #setType(String)} to 24 3101 * {@literal *}/*. 25 3102 * <p> 26 3103 * If the caller can handle multiple returned items (the user performing 27 3104 * multiple selection), then you can specify {@link #EXTRA_ALLOW_MULTIPLE} 28 3105 * to indicate this. 29 3106 * <p> 30 3107 * Callers must include {@link #CATEGORY_OPENABLE} in the Intent to obtain 31 3108 * URIs that can be opened with 32 3109 * {@link ContentResolver#openFileDescriptor(Uri, String)}. 33 3110 * <p> 34 3111 * Output: The URI of the item that was picked, returned in 35 3112 * {@link #getData()}. This must be a {@code content://} URI so that any 36 3113 * receiver can access it. If multiple documents were selected, they are 37 3114 * returned in {@link #getClipData()}. 38 3115 * 39 3116 * @see DocumentsContract 40 3117 * @see #ACTION_OPEN_DOCUMENT_TREE 41 3118 * @see #ACTION_CREATE_DOCUMENT 42 3119 * @see #FLAG_GRANT_PERSISTABLE_URI_PERMISSION 43 3120 */ 44 3121 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 45 3122 public static final String ACTION_OPEN_DOCUMENT = "android.intent.action.OPEN_DOCUMENT"; 46 3123 47 3124 /** 48 3125 * Activity Action: Allow the user to create a new document. When invoked, 49 3126 * the system will display the various {@link DocumentsProvider} instances 50 3127 * installed on the device, letting the user navigate through them. The 51 3128 * returned document may be a newly created document with no content, or it 52 3129 * may be an existing document with the requested MIME type. 53 3130 * <p> 54 3131 * Each document is represented as a {@code content://} URI backed by a 55 3132 * {@link DocumentsProvider}, which can be opened as a stream with 56 3133 * {@link ContentResolver#openFileDescriptor(Uri, String)}, or queried for 57 3134 * {@link android.provider.DocumentsContract.Document} metadata. 58 3135 * <p> 59 3136 * Callers must indicate the concrete MIME type of the document being 60 3137 * created by setting {@link #setType(String)}. This MIME type cannot be 61 3138 * changed after the document is created. 62 3139 * <p> 63 3140 * Callers can provide an initial display name through {@link #EXTRA_TITLE}, 64 3141 * but the user may change this value before creating the file. 65 3142 * <p> 66 3143 * Callers must include {@link #CATEGORY_OPENABLE} in the Intent to obtain 67 3144 * URIs that can be opened with 68 3145 * {@link ContentResolver#openFileDescriptor(Uri, String)}. 69 3146 * <p> 70 3147 * Output: The URI of the item that was created. This must be a 71 3148 * {@code content://} URI so that any receiver can access it. 72 3149 * 73 3150 * @see DocumentsContract 74 3151 * @see #ACTION_OPEN_DOCUMENT 75 3152 * @see #ACTION_OPEN_DOCUMENT_TREE 76 3153 * @see #FLAG_GRANT_PERSISTABLE_URI_PERMISSION 77 3154 */ 78 3155 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 79 3156 public static final String ACTION_CREATE_DOCUMENT = "android.intent.action.CREATE_DOCUMENT";
ACTION_OPEN_DOCUMENT_TREE表明开打一个文档子树
1 3158 /** 2 3159 * Activity Action: Allow the user to pick a directory subtree. When 3 3160 * invoked, the system will display the various {@link DocumentsProvider} 4 3161 * instances installed on the device, letting the user navigate through 5 3162 * them. Apps can fully manage documents within the returned directory. 6 3163 * <p> 7 3164 * To gain access to descendant (child, grandchild, etc) documents, use 8 3165 * {@link DocumentsContract#buildDocumentUriUsingTree(Uri, String)} and 9 3166 * {@link DocumentsContract#buildChildDocumentsUriUsingTree(Uri, String)} 10 3167 * with the returned URI. 11 3168 * <p> 12 3169 * Output: The URI representing the selected directory tree. 13 3170 * 14 3171 * @see DocumentsContract 15 3172 */ 16 3173 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 17 3174 public static final String 18 3175 ACTION_OPEN_DOCUMENT_TREE = "android.intent.action.OPEN_DOCUMENT_TREE";
ACTION_DYNAMIC_SENSOR_CHANGED表明sensor连接或者断开连接
1 3177 /** 2 3178 * Broadcast Action: List of dynamic sensor is changed due to new sensor being connected or 3 3179 * exisiting sensor being disconnected. 4 3180 * 5 3181 * <p class="note">This is a protected intent that can only be sent by the system.</p> 6 3182 * 7 3183 * {@hide} 8 3184 */ 9 3185 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 10 3186 public static final String 11 3187 ACTION_DYNAMIC_SENSOR_CHANGED = "android.intent.action.DYNAMIC_SENSOR_CHANGED";
ACTION_MASTER_CLEAR是hide的，不导入sdk里，表明是否做factory reset
1 3189 /** {@hide} */ 2 3190 public static final String ACTION_MASTER_CLEAR = "android.intent.action.MASTER_CLEAR";
EXTRA_FORCE_MASTER_CLEAR表明是否强制做factory reset
1 3192 /** 2 3193 * Boolean intent extra to be used with {@link ACTION_MASTER_CLEAR} in order to force a factory 3 3194 * reset even if {@link android.os.UserManager.DISALLOW_FACTORY_RESET} is set. 4 3195 * @hide 5 3196 */ 6 3197 public static final String EXTRA_FORCE_MASTER_CLEAR = 7 3198 "android.intent.extra.FORCE_MASTER_CLEAR"; 8 3199
ACTION_SETTING_RESTORED表明一个设置项正从备份里还原，EXTRA_SETTING_NAME表明设置项的名字，EXTRA_SETTING_PREVIOUS_VALUE表明该项以前的值，EXTRA_SETTING_NEW_VALUE表明新的值
1 3200 /** 2 3201 * Broadcast action: report that a settings element is being restored from backup. The intent 3 3202 * contains three extras: EXTRA_SETTING_NAME is a string naming the restored setting, 4 3203 * EXTRA_SETTING_NEW_VALUE is the value being restored, and EXTRA_SETTING_PREVIOUS_VALUE 5 3204 * is the value of that settings entry prior to the restore operation. All of these values are 6 3205 * represented as strings. 7 3206 * 8 3207 * <p>This broadcast is sent only for settings provider entries known to require special handling 9 3208 * around restore time. These entries are found in the BROADCAST_ON_RESTORE table within 10 3209 * the provider's backup agent implementation. 11 3210 * 12 3211 * @see #EXTRA_SETTING_NAME 13 3212 * @see #EXTRA_SETTING_PREVIOUS_VALUE 14 3213 * @see #EXTRA_SETTING_NEW_VALUE 15 3214 * {@hide} 16 3215 */ 17 3216 public static final String ACTION_SETTING_RESTORED = "android.os.action.SETTING_RESTORED"; 18 3217 19 3218 /** {@hide} */ 20 3219 public static final String EXTRA_SETTING_NAME = "setting_name"; 21 3220 /** {@hide} */ 22 3221 public static final String EXTRA_SETTING_PREVIOUS_VALUE = "previous_value"; 23 3222 /** {@hide} */ 24 3223 public static final String EXTRA_SETTING_NEW_VALUE = "new_value";
ACTION_PROCESS表明处理一个文本；EXTRA_PROCESS_TEXT是要处理的text，EXTRA_PROCESS_TEXT_READONLY表明返回的处理过的text是否是只读的
1 3225 /** 2 3226 * Activity Action: Process a piece of text. 3 3227 * <p>Input: {@link #EXTRA_PROCESS_TEXT} contains the text to be processed. 4 3228 * {@link #EXTRA_PROCESS_TEXT_READONLY} states if the resulting text will be read-only.</p> 5 3229 * <p>Output: {@link #EXTRA_PROCESS_TEXT} contains the processed text.</p> 6 3230 */ 7 3231 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 8 3232 public static final String ACTION_PROCESS_TEXT = "android.intent.action.PROCESS_TEXT"; 9 3233 /** 10 3234 * The name of the extra used to define the text to be processed, as a 11 3235 * CharSequence. Note that this may be a styled CharSequence, so you must use 12 3236 * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to retrieve it. 13 3237 */ 14 3238 public static final String EXTRA_PROCESS_TEXT = "android.intent.extra.PROCESS_TEXT"; 15 3239 /** 16 3240 * The name of the boolean extra used to define if the processed text will be used as read-only. 17 3241 */ 18 3242 public static final String EXTRA_PROCESS_TEXT_READONLY =
ACTION_THERMAL_EVENT表明达到了某个温度的事件发生；EXTRA_THERMAL_STATE是温度的状态，是EXTRA_THERMAL_STATE_NORMAL，EXTRA_THERMAL_STATE_WARNING，EXTRA_THERMAL_STATE_EXCEEDED中的一个
1 3245 /** 2 3246 * Broadcast action: reports when a new thermal event has been reached. When the device 3 3247 * is reaching its maximum temperatue, the thermal level reported 4 3248 * {@hide} 5 3249 */ 6 3250 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 7 3251 public static final String ACTION_THERMAL_EVENT = "android.intent.action.THERMAL_EVENT"; 8 3252 9 3253 /** {@hide} */ 10 3254 public static final String EXTRA_THERMAL_STATE = "android.intent.extra.THERMAL_STATE"; 11 3255 12 3256 /** 13 3257 * Thermal state when the device is normal. This state is sent in the 14 3258 * {@link #ACTION_THERMAL_EVENT} broadcast as {@link #EXTRA_THERMAL_STATE}. 15 3259 * {@hide} 16 3260 */ 17 3261 public static final int EXTRA_THERMAL_STATE_NORMAL = 0; 18 3262 19 3263 /** 20 3264 * Thermal state where the device is approaching its maximum threshold. This state is sent in 21 3265 * the {@link #ACTION_THERMAL_EVENT} broadcast as {@link #EXTRA_THERMAL_STATE}. 22 3266 * {@hide} 23 3267 */ 24 3268 public static final int EXTRA_THERMAL_STATE_WARNING = 1; 25 3269 26 3270 /** 27 3271 * Thermal state where the device has reached its maximum threshold. This state is sent in the 28 3272 * {@link #ACTION_THERMAL_EVENT} broadcast as {@link #EXTRA_THERMAL_STATE}. 29 3273 * {@hide} 30 3274 */ 31 3275 public static final int EXTRA_THERMAL_STATE_EXCEEDED = 2;
下面开始讲Intent category
CATEGORY_DEFAULT表明是否该activity应该成为操作数据动作的默认操作者，如果其他activity没有设置这个，那么将对用户展示设置了这个的activity
1 3278 // --------------------------------------------------------------------- 2 3279 // --------------------------------------------------------------------- 3 3280 // Standard intent categories (see addCategory()). 4 3281 5 3282 /** 6 3283 * Set if the activity should be an option for the default action 7 3284 * (center press) to perform on a piece of data. Setting this will 8 3285 * hide from the user any activities without it set when performing an 9 3286 * action on some data. Note that this is normally -not- set in the 10 3287 * Intent when initiating an action -- it is for use in intent filters 11 3288 * specified in packages. 12 3289 */ 13 3290 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 14 3291 public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
CATEGORY_BROWSABLE表明Activity可以被浏览器调用
1 3292 /** 2 3293 * Activities that can be safely invoked from a browser must support this 3 3294 * category. For example, if the user is viewing a web page or an e-mail 4 3295 * and clicks on a link in the text, the Intent generated execute that 5 3296 * link will require the BROWSABLE category, so that only activities 6 3297 * supporting this category will be considered as possible actions. By 7 3298 * supporting this category, you are promising that there is nothing 8 3299 * damaging (without user intervention) that can happen by invoking any 9 3300 * matching Intent. 10 3301 */ 11 3302 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 12 3303 public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
CATEGORY_VOICE表明Activity会参与语音交互
1 3304 /** 2 3305 * Categories for activities that can participate in voice interaction. 3 3306 * An activity that supports this category must be prepared to run with 4 3307 * no UI shown at all (though in some case it may have a UI shown), and 5 3308 * rely on {@link android.app.VoiceInteractor} to interact with the user. 6 3309 */ 7 3310 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 8 3311 public static final String CATEGORY_VOICE = "android.intent.category.VOICE";
CATEGORY_ALTERNATIVE表明Activity是正在view的data的一个可替换选项
1 3312 /** 2 3313 * Set if the activity should be considered as an alternative action to 3 3314 * the data the user is currently viewing. See also 4 3315 * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that 5 3316 * applies to the selection in a list of items. 6 3317 * 7 3318 * <p>Supporting this category means that you would like your activity to be 8 3319 * displayed in the set of alternative things the user can do, usually as 9 3320 * part of the current activity's options menu. You will usually want to 10 3321 * include a specific label in the <intent-filter> of this action 11 3322 * describing to the user what it does. 12 3323 * 13 3324 * <p>The action of IntentFilter with this category is important in that it 14 3325 * describes the specific action the target will perform. This generally 15 3326 * should not be a generic action (such as {@link #ACTION_VIEW}, but rather 16 3327 * a specific name such as "com.android.camera.action.CROP. Only one 17 3328 * alternative of any particular action will be shown to the user, so using 18 3329 * a specific action like this makes sure that your alternative will be 19 3330 * displayed while also allowing other applications to provide their own 20 3331 * overrides of that particular action. 21 3332 */ 22 3333 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 23 3334 public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
CATEGORY_SELECTED_ALTERNATIVE表明被选中的数据的可替代选择操作
1 3335 /** 2 3336 * Set if the activity should be considered as an alternative selection 3 3337 * action to the data the user has currently selected. This is like 4 3338 * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list 5 3339 * of items from which the user can select, giving them alternatives to the 6 3340 * default action that will be performed on it. 7 3341 */ 8 3342 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 9 3343 public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
CATEGORY_TAB表明Activityi做为一个Tab被包含在TabActivity里
1 3344 /** 2 3345 * Intended to be used as a tab inside of a containing TabActivity. 3 3346 */ 4 3347 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 5 3348 public static final String CATEGORY_TAB = "android.intent.category.TAB";
CATEGORY_LAUNCHER表明Activity应该显示在launcher界面
1 3349 /** 2 3350 * Should be displayed in the top-level launcher. 3 3351 */ 4 3352 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 5 3353 public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
CATEGORY_LEANBACK_LAUNCHER表明Activity显示在Leanback launcher界面
1 3354 /** 2 3355 * Indicates an activity optimized for Leanback mode, and that should 3 3356 * be displayed in the Leanback launcher. 4 3357 */ 5 3358 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 6 3359 public static final String CATEGORY_LEANBACK_LAUNCHER = "android.intent.category.LEANBACK_LAUNCHER";
CATEGORY_LEANBACK_SETTINGS表明Activity为leanback settings activity
1 3360 /** 2 3361 * Indicates a Leanback settings activity to be displayed in the Leanback launcher. 3 3362 * @hide 4 3363 */ 5 3364 @SystemApi 6 3365 public static final String CATEGORY_LEANBACK_SETTINGS = "android.intent.category.LEANBACK_SETTINGS";
CATEGORY_INFO表明包含package info的Activity
1 3366 /** 2 3367 * Provides information about the package it is in; typically used if 3 3368 * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide 4 3369 * a front-door to the user without having to be shown in the all apps list. 5 3370 */ 6 3371 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 7 3372 public static final String CATEGORY_INFO = "android.intent.category.INFO";
CATEGORY_HOME表明为home Activty，在第一次启动的时候显示，即欢迎启动界面
1 3373 /** 2 3374 * This is the home activity, that is the first activity that is displayed 3 3375 * when the device boots. 4 3376 */ 5 3377 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 6 3378 public static final String CATEGORY_HOME = "android.intent.category.HOME";
CATEGORY_HOME_MAIN表明Activity在设备做完设置后显示
1 3379 /** 2 3380 * This is the home activity that is displayed when the device is finished setting up and ready 3 3381 * for use. 4 3382 * @hide 5 3383 */ 6 3384 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 7 3385 public static final String CATEGORY_HOME_MAIN = "android.intent.category.HOME_MAIN";
CATEGORY_SETUP_WIZARD表明为设置向导Activity
1 3386 /** 2 3387 * This is the setup wizard activity, that is the first activity that is displayed 3 3388 * when the user sets up the device for the first time. 4 3389 * @hide 5 3390 */ 6 3391 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 7 3392 public static final String CATEGORY_SETUP_WIZARD = "android.intent.category.SETUP_WIZARD";
CATEGORY_PREFERENCE表明该Activity为偏好面板
1 3393 /** 2 3394 * This activity is a preference panel. 3 3395 */ 4 3396 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 5 3397 public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
CATEGORY_DEVELOPMENT_PREFERENCE表明该Activity为开发偏好面板
1 3398 /** 2 3399 * This activity is a development preference panel. 3 3400 */ 4 3401 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 5 3402 public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE"; 6 3403 /**
CATEGORY_EMBED表明该Activity可以嵌进父Activity里
1 3403 /** 2 3404 * Capable of running inside a parent activity container. 3 3405 */ 4 3406 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 5 3407 public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
CATEGORY_APP_MARKET表明该Activity可以浏览和下载应用程序
1 3408 /** 2 3409 * This activity allows the user to browse and download new applications. 3 3410 */ 4 3411 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 5 3412 public static final String CATEGORY_APP_MARKET = "android.intent.category.APP_MARKET";
CATEGORY_MONKEY表明该Activity可以被Monkey或者其他自动测试工具使用
1 3413 /** 2 3414 * This activity may be exercised by the monkey or other automated test tools. 3 3415 */ 4 3416 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 5 3417 public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
CATEGORY_TEST表明该Activity仅仅是做测试用
1 3418 /** 2 3419 * To be used as a test (not part of the normal user experience). 3 3420 */ 4 3421 public static final String CATEGORY_TEST = "android.intent.category.TEST";
CATEGORY_UNIT_TEST表明Activity用来做单元测试
1 3422 /** 2 3423 * To be used as a unit test (run through the Test Harness). 3 3424 */ 4 3425 public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
CATEGORY_SAMPLE_CODE表明Activity用来做例子
1 3426 /** 2 3427 * To be used as a sample code example (not part of the normal user 3 3428 * experience). 4 3429 */ 5 3430 public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
CATEGORY_OPENABLE表明数据的URI可以用ContentResolver#OpenFileDescriptor来处理
1 3432 /** 2 3433 * Used to indicate that an intent only wants URIs that can be opened with 3 3434 * {@link ContentResolver#openFileDescriptor(Uri, String)}. Openable URIs 4 3435 * must support at least the columns defined in {@link OpenableColumns} when 5 3436 * queried. 6 3437 * 7 3438 * @see #ACTION_GET_CONTENT 8 3439 * @see #ACTION_OPEN_DOCUMENT 9 3440 * @see #ACTION_CREATE_DOCUMENT 10 3441 */ 11 3442 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 12 3443 public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST表明Activity做framework instrumentation测试
1 3445 /** 2 3446 * To be used as code under test for framework instrumentation tests. 3 3447 */ 4 3448 public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST = 5 3449 "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
CATEGORY_CAR_DOCK表明Activity用于汽车docker；CATEGORY_DESK_DOCKER表明用于桌面docker；CATEGORY_LE_DESK_DOCKER表明用于low end桌面docker；CATEGORY_HE_DESK_DOCKER表明用于high end桌面docker;CATEGORY_CAR_MODE表明是在car模式下
1 3450 /** 2 3451 * An activity to run when device is inserted into a car dock. 3 3452 * Used with {@link #ACTION_MAIN} to launch an activity. For more 4 3453 * information, see {@link android.app.UiModeManager}. 5 3454 */ 6 3455 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 7 3456 public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK"; 8 3457 /** 9 3458 * An activity to run when device is inserted into a car dock. 10 3459 * Used with {@link #ACTION_MAIN} to launch an activity. For more 11 3460 * information, see {@link android.app.UiModeManager}. 12 3461 */ 13 3462 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 14 3463 public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK"; 15 3464 /** 16 3465 * An activity to run when device is inserted into a analog (low end) dock. 17 3466 * Used with {@link #ACTION_MAIN} to launch an activity. For more 18 3467 * information, see {@link android.app.UiModeManager}. 19 3468 */ 20 3469 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 21 3470 public static final String CATEGORY_LE_DESK_DOCK = "android.intent.category.LE_DESK_DOCK"; 22 3471 23 3472 /** 24 3473 * An activity to run when device is inserted into a digital (high end) dock. 25 3474 * Used with {@link #ACTION_MAIN} to launch an activity. For more 26 3475 * information, see {@link android.app.UiModeManager}. 27 3476 */ 28 3477 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 29 3478 public static final String CATEGORY_HE_DESK_DOCK = "android.intent.category.HE_DESK_DOCK"; 30 3479 31 3480 /** 32 3481 * Used to indicate that the activity can be used in a car environment. 33 3482 */ 34 3483 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 35 3484 public static final String CATEGORY_CAR_MODE = "android.intent.category.CAR_MODE";
CATEGORY_APP_BROWSER表明启动一个浏览器；CATEGORY_APP_CALCULATOR表明启动一个计算器；CATEGORY_APP_CALENDAR表明启动一个日历；CATEGORY_APP_CONTACTS表明启动一个联系人；CATEGORY_APP_EMAIL启动电子邮件；CATEGORY_APP_GALLEY启动相册；CATEGORY_APP_MAPS表明启动地图；CATEGORY_APP_MESSAGING表明启动短信；CATEGORY_APP_MUSIC表明启动音乐播放器
1 3486 // --------------------------------------------------------------------- 2 3487 // --------------------------------------------------------------------- 3 3488 // Application launch intent categories (see addCategory()). 4 3489 5 3490 /** 6 3491 * Used with {@link #ACTION_MAIN} to launch the browser application. 7 3492 * The activity should be able to browse the Internet. 8 3493 * <p>NOTE: This should not be used as the primary key of an Intent, 9 3494 * since it will not result in the app launching with the correct 10 3495 * action and category. Instead, use this with 11 3496 * {@link #makeMainSelectorActivity(String, String)} to generate a main 12 3497 * Intent with this category in the selector.</p> 13 3498 */ 14 3499 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 15 3500 public static final String CATEGORY_APP_BROWSER = "android.intent.category.APP_BROWSER"; 16 3501 17 3502 /** 18 3503 * Used with {@link #ACTION_MAIN} to launch the calculator application. 19 3504 * The activity should be able to perform standard arithmetic operations. 20 3505 * <p>NOTE: This should not be used as the primary key of an Intent, 21 3506 * since it will not result in the app launching with the correct 22 3507 * action and category. Instead, use this with 23 3508 * {@link #makeMainSelectorActivity(String, String)} to generate a main 24 3509 * Intent with this category in the selector.</p> 25 3510 */ 26 3511 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 27 3512 public static final String CATEGORY_APP_CALCULATOR = "android.intent.category.APP_CALCULATOR"; 28 3513 29 3514 /** 30 3515 * Used with {@link #ACTION_MAIN} to launch the calendar application. 31 3516 * The activity should be able to view and manipulate calendar entries. 32 3517 * <p>NOTE: This should not be used as the primary key of an Intent, 33 3518 * since it will not result in the app launching with the correct 34 3519 * action and category. Instead, use this with 35 3520 * {@link #makeMainSelectorActivity(String, String)} to generate a main 36 3521 * Intent with this category in the selector.</p> 37 3522 */ 38 3523 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 39 3524 public static final String CATEGORY_APP_CALENDAR = "android.intent.category.APP_CALENDAR"; 40 3525 41 3526 /** 42 3527 * Used with {@link #ACTION_MAIN} to launch the contacts application. 43 3528 * The activity should be able to view and manipulate address book entries. 44 3529 * <p>NOTE: This should not be used as the primary key of an Intent, 45 3530 * since it will not result in the app launching with the correct 46 3531 * action and category. Instead, use this with 47 3532 * {@link #makeMainSelectorActivity(String, String)} to generate a main 48 3533 * Intent with this category in the selector.</p> 49 3534 */ 50 3535 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 51 3536 public static final String CATEGORY_APP_CONTACTS = "android.intent.category.APP_CONTACTS"; 52 3537 53 3538 /** 54 3539 * Used with {@link #ACTION_MAIN} to launch the email application. 55 3540 * The activity should be able to send and receive email. 56 3541 * <p>NOTE: This should not be used as the primary key of an Intent, 57 3542 * since it will not result in the app launching with the correct 58 3543 * action and category. Instead, use this with 59 3544 * {@link #makeMainSelectorActivity(String, String)} to generate a main 60 3545 * Intent with this category in the selector.</p> 61 3546 */ 62 3547 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 63 3548 public static final String CATEGORY_APP_EMAIL = "android.intent.category.APP_EMAIL"; 64 3549 65 3550 /** 66 3551 * Used with {@link #ACTION_MAIN} to launch the gallery application. 67 3552 * The activity should be able to view and manipulate image and video files 68 3553 * stored on the device. 69 3554 * <p>NOTE: This should not be used as the primary key of an Intent, 70 3555 * since it will not result in the app launching with the correct 71 3556 * action and category. Instead, use this with 72 3557 * {@link #makeMainSelectorActivity(String, String)} to generate a main 73 3558 * Intent with this category in the selector.</p> 74 3559 */ 75 3560 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 76 3561 public static final String CATEGORY_APP_GALLERY = "android.intent.category.APP_GALLERY"; 77 3562 78 3563 /** 79 3564 * Used with {@link #ACTION_MAIN} to launch the maps application. 80 3565 * The activity should be able to show the user's current location and surroundings. 81 3566 * <p>NOTE: This should not be used as the primary key of an Intent, 82 3567 * since it will not result in the app launching with the correct 83 3568 * action and category. Instead, use this with 84 3569 * {@link #makeMainSelectorActivity(String, String)} to generate a main 85 3570 * Intent with this category in the selector.</p> 86 3571 */ 87 3572 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 88 3573 public static final String CATEGORY_APP_MAPS = "android.intent.category.APP_MAPS"; 89 3574 90 3575 /** 91 3576 * Used with {@link #ACTION_MAIN} to launch the messaging application. 92 3577 * The activity should be able to send and receive text messages. 93 3578 * <p>NOTE: This should not be used as the primary key of an Intent, 94 3579 * since it will not result in the app launching with the correct 95 3580 * action and category. Instead, use this with 96 3581 * {@link #makeMainSelectorActivity(String, String)} to generate a main 97 3582 * Intent with this category in the selector.</p> 98 3583 */ 99 3584 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 100 3585 public static final String CATEGORY_APP_MESSAGING = "android.intent.category.APP_MESSAGING"; 101 3586 102 3587 /** 103 3588 * Used with {@link #ACTION_MAIN} to launch the music application. 104 3589 * The activity should be able to play, browse, or manipulate music files 105 3590 * stored on the device. 106 3591 * <p>NOTE: This should not be used as the primary key of an Intent, 107 3592 * since it will not result in the app launching with the correct 108 3593 * action and category. Instead, use this with 109 3594 * {@link #makeMainSelectorActivity(String, String)} to generate a main 110 3595 * Intent with this category in the selector.</p> 111 3596 */ 112 3597 @SdkConstant(SdkConstantType.INTENT_CATEGORY) 113 3598 public static final String CATEGORY_APP_MUSIC = "android.intent.category.APP_MUSIC";
下面为标准的extra 数据key
EXTRA_TEMPLATE表明要创建记录的初始值，用在ACTION_INSERT
1 3600 // --------------------------------------------------------------------- 2 3601 // --------------------------------------------------------------------- 3 3602 // Standard extra data keys. 4 3603 5 3604 /** 6 3605 * The initial data to place in a newly created record. Use with 7 3606 * {@link #ACTION_INSERT}. The data here is a Map containing the same 8 3607 * fields as would be given to the underlying ContentProvider.insert() 9 3608 * call. 10 3609 */ 11 3610 public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
EXTRA_TEXT和ACTION_SEND一起用，表明要发送的字符串
1 3612 /** 2 3613 * A constant CharSequence that is associated with the Intent, used with 3 3614 * {@link #ACTION_SEND} to supply the literal data to be sent. Note that 4 3615 * this may be a styled CharSequence, so you must use 5 3616 * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to 6 3617 * retrieve it. 7 3618 */ 8 3619 public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
EXTRA_HTML_TEXT和ACTION_SEND一起用，表明要发表的html字符串
1 3621 /** 2 3622 * A constant String that is associated with the Intent, used with 3 3623 * {@link #ACTION_SEND} to supply an alternative to {@link #EXTRA_TEXT} 4 3624 * as HTML formatted text. Note that you <em>must</em> also supply 5 3625 * {@link #EXTRA_TEXT}. 6 3626 */ 7 3627 public static final String EXTRA_HTML_TEXT = "android.intent.extra.HTML_TEXT";
EXTRA_STREAM表明要发送的流数据URI
1 3629 /** 2 3630 * A content: URI holding a stream of data associated with the Intent, 3 3631 * used with {@link #ACTION_SEND} to supply the data being sent. 4 3632 */ 5 3633 public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
EXTRA_EMAIL表明要发送的email的地址
1 3635 /** 2 3636 * A String[] holding e-mail addresses that should be delivered to. 3 3637 */ 4 3638 public static final String EXTRA_EMAIL = "android.intent.extra.EMAIL";
EXTRA_CC表明email cc的地址
1 3640 /** 2 3641 * A String[] holding e-mail addresses that should be carbon copied. 3 3642 */ 4 3643 public static final String EXTRA_CC = "android.intent.extra.CC";
EXTRA_BCC表明email bcc的地址
1 3645 /** 2 3646 * A String[] holding e-mail addresses that should be blind carbon copied. 3 3647 */ 4 3648 public static final String EXTRA_BCC = "android.intent.extra.BCC";
EXTRA_SUBJECT表明email的主题
1 3650 /** 2 3651 * A constant string holding the desired subject line of a message. 3 3652 */ 4 3653 public static final String EXTRA_SUBJECT = "android.intent.extra.SUBJECT";
EXTRA_INTENT包含Intent的表述字符
1 3655 /** 2 3656 * An Intent describing the choices you would like shown with 3 3657 * {@link #ACTION_PICK_ACTIVITY} or {@link #ACTION_CHOOSER}. 4 3658 */ 5 3659 public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
EXTRA_USER_ID表明要用的user id
1 3661 /** 2 3662 * An int representing the user id to be used. 3 3663 * 4 3664 * @hide 5 3665 */ 6 3666 public static final String EXTRA_USER_ID = "android.intent.extra.USER_ID";
EXTRA_TASK_ID表明要用的task id
1 3668 /** 2 3669 * An int representing the task id to be retrieved. This is used when a launch from recents is 3 3670 * intercepted by another action such as credentials confirmation to remember which task should 4 3671 * be resumed when complete. 5 3672 * 6 3673 * @hide 7 3674 */ 8 3675 public static final String EXTRA_TASK_ID = "android.intent.extra.TASK_ID"; 9 3676
EXTRA_ALTERNATIVE_INTENTS表明ACTION_CHOOSER将要展示的可选择Intent
1 3677 /** 2 3678 * An Intent[] describing additional, alternate choices you would like shown with 3 3679 * {@link #ACTION_CHOOSER}. 4 3680 * 5 3681 * <p>An app may be capable of providing several different payload types to complete a 6 3682 * user's intended action. For example, an app invoking {@link #ACTION_SEND} to share photos 7 3683 * with another app may use EXTRA_ALTERNATE_INTENTS to have the chooser transparently offer 8 3684 * several different supported sending mechanisms for sharing, such as the actual "image/*" 9 3685 * photo data or a hosted link where the photos can be viewed.</p> 10 3686 * 11 3687 * <p>The intent present in {@link #EXTRA_INTENT} will be treated as the 12 3688 * first/primary/preferred intent in the set. Additional intents specified in 13 3689 * this extra are ordered; by default intents that appear earlier in the array will be 14 3690 * preferred over intents that appear later in the array as matches for the same 15 3691 * target component. To alter this preference, a calling app may also supply 16 3692 * {@link #EXTRA_CHOOSER_REFINEMENT_INTENT_SENDER}.</p> 17 3693 */ 18 3694 public static final String EXTRA_ALTERNATE_INTENTS = "android.intent.extra.ALTERNATE_INTENTS";
EXTRA_EXCLUDE_COMPONENTS表明要排除给用户的组件名称。
1 3696 /** 2 3697 * A {@link ComponentName ComponentName[]} describing components that should be filtered out 3 3698 * and omitted from a list of components presented to the user. 4 3699 * 5 3700 * <p>When used with {@link #ACTION_CHOOSER}, the chooser will omit any of the components 6 3701 * in this array if it otherwise would have shown them. Useful for omitting specific targets 7 3702 * from your own package or other apps from your organization if the idea of sending to those 8 3703 * targets would be redundant with other app functionality. Filtered components will not 9 3704 * be able to present targets from an associated <code>ChooserTargetService</code>.</p> 10 3705 */ 11 3706 public static final String EXTRA_EXCLUDE_COMPONENTS 12 3707 = "android.intent.extra.EXCLUDE_COMPONENTS";
EXTRA_CHOOSER_TARGETS表明ACTION_CHOOSER要用的ChooserTarget，位置靠前
1 3709 /** 2 3710 * A {@link android.service.chooser.ChooserTarget ChooserTarget[]} for {@link #ACTION_CHOOSER} 3 3711 * describing additional high-priority deep-link targets for the chooser to present to the user. 4 3712 * 5 3713 * <p>Targets provided in this way will be presented inline with all other targets provided 6 3714 * by services from other apps. They will be prioritized before other service targets, but 7 3715 * after those targets provided by sources that the user has manually pinned to the front.</p> 8 3716 * 9 3717 * @see #ACTION_CHOOSER 10 3718 */ 11 3719 public static final String EXTRA_CHOOSER_TARGETS = "android.intent.extra.CHOOSER_TARGETS";
EXTRA_REFINEMENT_INTENT_SENDER表明要启动的Activity的IntentSender，在ACTION_CHOOSER里做出选择后发出。
1 3721 /** 2 3722 * An {@link IntentSender} for an Activity that will be invoked when the user makes a selection 3 3723 * from the chooser activity presented by {@link #ACTION_CHOOSER}. 4 3724 * 5 3725 * <p>An app preparing an action for another app to complete may wish to allow the user to 6 3726 * disambiguate between several options for completing the action based on the chosen target 7 3727 * or otherwise refine the action before it is invoked. 8 3728 * </p> 9 3729 * 10 3730 * <p>When sent, this IntentSender may be filled in with the following extras:</p> 11 3731 * <ul> 12 3732 * <li>{@link #EXTRA_INTENT} The first intent that matched the user's chosen target</li> 13 3733 * <li>{@link #EXTRA_ALTERNATE_INTENTS} Any additional intents that also matched the user's 14 3734 * chosen target beyond the first</li> 15 3735 * <li>{@link #EXTRA_RESULT_RECEIVER} A {@link ResultReceiver} that the refinement activity 16 3736 * should fill in and send once the disambiguation is complete</li> 17 3737 * </ul> 18 3738 */ 19 3739 public static final String EXTRA_CHOOSER_REFINEMENT_INTENT_SENDER 20 3740 = "android.intent.extra.CHOOSER_REFINEMENT_INTENT_SENDER";
EXTRA_RESULT_RECEIVER用来返回结果
1 3742 /** 2 3743 * A {@link ResultReceiver} used to return data back to the sender. 3 3744 * 4 3745 * <p>Used to complete an app-specific 5 3746 * {@link #EXTRA_CHOOSER_REFINEMENT_INTENT_SENDER refinement} for {@link #ACTION_CHOOSER}.</p> 6 3747 * 7 3748 * <p>If {@link #EXTRA_CHOOSER_REFINEMENT_INTENT_SENDER} is present in the intent 8 3749 * used to start a {@link #ACTION_CHOOSER} activity this extra will be 9 3750 * {@link #fillIn(Intent, int) filled in} to that {@link IntentSender} and sent 10 3751 * when the user selects a target component from the chooser. It is up to the recipient 11 3752 * to send a result to this ResultReceiver to signal that disambiguation is complete 12 3753 * and that the chooser should invoke the user's choice.</p> 13 3754 * 14 3755 * <p>The disambiguator should provide a Bundle to the ResultReceiver with an intent 15 3756 * assigned to the key {@link #EXTRA_INTENT}. This supplied intent will be used by the chooser 16 3757 * to match and fill in the final Intent or ChooserTarget before starting it. 17 3758 * The supplied intent must {@link #filterEquals(Intent) match} one of the intents from 18 3759 * {@link #EXTRA_INTENT} or {@link #EXTRA_ALTERNATE_INTENTS} passed to 19 3760 * {@link #EXTRA_CHOOSER_REFINEMENT_INTENT_SENDER} to be accepted.</p> 20 3761 * 21 3762 * <p>The result code passed to the ResultReceiver should be 22 3763 * {@link android.app.Activity#RESULT_OK} if the refinement succeeded and the supplied intent's 23 3764 * target in the chooser should be started, or {@link android.app.Activity#RESULT_CANCELED} if 24 3765 * the chooser should finish without starting a target.</p> 25 3766 */ 26 3767 public static final String EXTRA_RESULT_RECEIVER 27 3768 = "android.intent.extra.RESULT_RECEIVER";
EXTRA_TITLE表明选择对话框的标题
1 3770 /** 2 3771 * A CharSequence dialog title to provide to the user when used with a 3 3772 * {@link #ACTION_CHOOSER}. 4 3773 */ 5 3774 public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
EXTRA_INITIAL_INTENTS表明ACTION_CHOOSER初始化的Intents
1 3776 /** 2 3777 * A Parcelable[] of {@link Intent} or 3 3778 * {@link android.content.pm.LabeledIntent} objects as set with 4 3779 * {@link #putExtra(String, Parcelable[])} of additional activities to place 5 3780 * a the front of the list of choices, when shown to the user with a 6 3781 * {@link #ACTION_CHOOSER}. 7 3782 */ 8 3783 public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
EXTRA_EPHEMERAL_SUCCESS表示ephemeral安装成功；EXTRA_EPHEMERAL_FAILURE表示ephemeral安装失败
1 3785 /** 2 3786 * A {@link IntentSender} to start after ephemeral installation success. 3 3787 * @hide 4 3788 */ 5 3789 public static final String EXTRA_EPHEMERAL_SUCCESS = "android.intent.extra.EPHEMERAL_SUCCESS"; 6 3790 7 3791 /** 8 3792 * A {@link IntentSender} to start after ephemeral installation failure. 9 3793 * @hide 10 3794 */ 11 3795 public static final String EXTRA_EPHEMERAL_FAILURE = "android.intent.extra.EPHEMERAL_FAILURE";
EXTRA_REPLACEMENT_EXTRAS用来给不同的包添加额外的参数
1 3797 /** 2 3798 * A Bundle forming a mapping of potential target package names to different extras Bundles 3 3799 * to add to the default intent extras in {@link #EXTRA_INTENT} when used with 4 3800 * {@link #ACTION_CHOOSER}. Each key should be a package name. The package need not 5 3801 * be currently installed on the device. 6 3802 * 7 3803 * <p>An application may choose to provide alternate extras for the case where a user 8 3804 * selects an activity from a predetermined set of target packages. If the activity 9 3805 * the user selects from the chooser belongs to a package with its package name as 10 3806 * a key in this bundle, the corresponding extras for that package will be merged with 11 3807 * the extras already present in the intent at {@link #EXTRA_INTENT}. If a replacement 12 3808 * extra has the same key as an extra already present in the intent it will overwrite 13 3809 * the extra from the intent.</p> 14 3810 * 15 3811 * <p><em>Examples:</em> 16 3812 * <ul> 17 3813 * <li>An application may offer different {@link #EXTRA_TEXT} to an application 18 3814 * when sharing with it via {@link #ACTION_SEND}, augmenting a link with additional query 19 3815 * parameters for that target.</li> 20 3816 * <li>An application may offer additional metadata for known targets of a given intent 21 3817 * to pass along information only relevant to that target such as account or content 22 3818 * identifiers already known to that application.</li> 23 3819 * </ul></p> 24 3820 */ 25 3821 public static final String EXTRA_REPLACEMENT_EXTRAS = 26 3822 "android.intent.extra.REPLACEMENT_EXTRAS";
EXTRA_CHOSEN_COMPONENT_INTENT_SENDER用来在选中的Activity中发送回调；EXTRA_CHOSEN_COMPONENT表明选中组件的名字
1 3824 /** 2 3825 * An {@link IntentSender} that will be notified if a user successfully chooses a target 3 3826 * component to handle an action in an {@link #ACTION_CHOOSER} activity. The IntentSender 4 3827 * will have the extra {@link #EXTRA_CHOSEN_COMPONENT} appended to it containing the 5 3828 * {@link ComponentName} of the chosen component. 6 3829 * 7 3830 * <p>In some situations this callback may never come, for example if the user abandons 8 3831 * the chooser, switches to another task or any number of other reasons. Apps should not 9 3832 * be written assuming that this callback will always occur.</p> 10 3833 */ 11 3834 public static final String EXTRA_CHOSEN_COMPONENT_INTENT_SENDER = 12 3835 "android.intent.extra.CHOSEN_COMPONENT_INTENT_SENDER"; 13 3836 14 3837 /** 15 3838 * The {@link ComponentName} chosen by the user to complete an action. 16 3839 * 17 3840 * @see #EXTRA_CHOSEN_COMPONENT_INTENT_SENDER 18 3841 */ 19 3842 public static final String EXTRA_CHOSEN_COMPONENT = "android.intent.extra.CHOSEN_COMPONENT"; 20 3843
EXTRA_KEY_EVENT用来包含触发Intent的事件；EXTRA_KEY_CONFIRM为真表明要用户点击确定按钮；EXTRA_USER_REQUESTED_SHUTDOWN表明是否是用户触发的shutdown
1 3844 /** 2 3845 * A {@link android.view.KeyEvent} object containing the event that 3 3846 * triggered the creation of the Intent it is in. 4 3847 */ 5 3848 public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT"; 6 3849 7 3850 /** 8 3851 * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user 9 3852 * before shutting down. 10 3853 * 11 3854 * {@hide} 12 3855 */ 13 3856 public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM"; 14 3857 15 3858 /** 16 3859 * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to indicate that the shutdown is 17 3860 * requested by the user. 18 3861 * 19 3862 * {@hide} 20 3863 */ 21 3864 public static final String EXTRA_USER_REQUESTED_SHUTDOWN = 22 3865 "android.intent.extra.USER_REQUESTED_SHUTDOWN";
EXTRA_DONT_KILL_APP指示是否在删除包的时候杀掉app
1 3867 /** 2 3868 * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or 3 3869 * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action 4 3870 * of restarting the application. 5 3871 */ 6 3872 public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
EXTRA_PHONE_NUMBER表明电话号码
1 3874 /** 2 3875 * A String holding the phone number originally entered in 3 3876 * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual 4 3877 * number to call in a {@link android.content.Intent#ACTION_CALL}. 5 3878 */ 6 3879 public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
EXTRA_UID表明包的UID
1 3881 /** 2 3882 * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED} 3 3883 * intents to supply the uid the package had been assigned. Also an optional 4 3884 * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or 5 3885 * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same 6 3886 * purpose. 7 3887 */ 8 3888 public static final String EXTRA_UID = "android.intent.extra.UID"; 9 3889
EXTRA_DATA_REMOVED指示是否要删除包的数据
1 3896 /** 2 3897 * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} 3 3898 * intents to indicate whether this represents a full uninstall (removing 4 3899 * both the code and its data) or a partial uninstall (leaving its data, 5 3900 * implying that this is an update). 6 3901 */ 7 3902 public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
EXTRA_REMOVED_FOR_ALL_USERS指示是否为所有的用户删除包
1 3904 /** 2 3905 * @hide 3 3906 * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} 4 3907 * intents to indicate that at this point the package has been removed for 5 3908 * all users on the device. 6 3909 */ 7 3910 public static final String EXTRA_REMOVED_FOR_ALL_USERS 8 3911 = "android.intent.extra.REMOVED_FOR_ALL_USERS";
EXTRA_REPLACING表明包正在做替换
1 3913 /** 2 3914 * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} 3 3915 * intents to indicate that this is a replacement of the package, so this 4 3916 * broadcast will immediately be followed by an add broadcast for a 5 3917 * different version of the same package. 6 3918 */ 7 3919 public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
EXTRA_ALARM_COUNT表明有多少个闹钟排队等待唤醒
1 3921 /** 2 3922 * Used as an int extra field in {@link android.app.AlarmManager} intents 3 3923 * to tell the application being invoked how many pending alarms are being 4 3924 * delievered with the intent. For one-shot alarms this will always be 1. 5 3925 * For recurring alarms, this might be greater than 1 if the device was 6 3926 * asleep or powered off at the time an earlier alarm would have been 7 3927 * delivered. 8 3928 */ 9 3929 public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
EXTRA_DOCK_STATE表明dock的状态；EXTRA_DOCK_STATE_UNLOCKED表明没有插入dock;EXTRA_DOCK_STATE_DESK表明dock是桌面模式;EXTRA_DOCK_STATE_CAR表明dock是car模式;EXTRA_DOCK_STATE_LE_DESK表明dock是low len桌面;EXTRA_DOCK_STATE_HE_DESK表明dock是high end桌面;METADATA_DOCK_HOME表明homekey由桌面dock接管
1 3931 /** 2 3932 * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT} 3 3933 * intents to request the dock state. Possible values are 4 3934 * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED}, 5 3935 * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or 6 3936 * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}, or 7 3937 * {@link android.content.Intent#EXTRA_DOCK_STATE_LE_DESK}, or 8 3938 * {@link android.content.Intent#EXTRA_DOCK_STATE_HE_DESK}. 9 3939 */ 10 3940 public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE"; 11 3941 12 3942 /** 13 3943 * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE} 14 3944 * to represent that the phone is not in any dock. 15 3945 */ 16 3946 public static final int EXTRA_DOCK_STATE_UNDOCKED = 0; 17 3947 18 3948 /** 19 3949 * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE} 20 3950 * to represent that the phone is in a desk dock. 21 3951 */ 22 3952 public static final int EXTRA_DOCK_STATE_DESK = 1; 23 3953 24 3954 /** 25 3955 * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE} 26 3956 * to represent that the phone is in a car dock. 27 3957 */ 28 3958 public static final int EXTRA_DOCK_STATE_CAR = 2; 29 3959 30 3960 /** 31 3961 * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE} 32 3962 * to represent that the phone is in a analog (low end) dock. 33 3963 */ 34 3964 public static final int EXTRA_DOCK_STATE_LE_DESK = 3; 35 3965 36 3966 /** 37 3967 * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE} 38 3968 * to represent that the phone is in a digital (high end) dock. 39 3969 */ 40 3970 public static final int EXTRA_DOCK_STATE_HE_DESK = 4; 41 3971 42 3972 /** 43 3973 * Boolean that can be supplied as meta-data with a dock activity, to 44 3974 * indicate that the dock should take over the home key when it is active. 45 3975 */ 46 3976 public static final String METADATA_DOCK_HOME = "android.dock_home";
EXTRA_BUG_REPORT表明bug report的parcelable对象
1 3978 /** 2 3979 * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing 3 3980 * the bug report. 4 3981 */ 5 3982 public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
EXTRA_REMOTE_TOKEN为remote intent用的token
1 3984 /** 2 3985 * Used in the extra field in the remote intent. It's astring token passed with the 3 3986 * remote intent. 4 3987 */ 5 3988 public static final String EXTRA_REMOTE_INTENT_TOKEN = 6 3989 "android.intent.extra.remote_intent_token";
EXTRA_CHANGED_COMPONENT_NAME表明被改边的component名字，已被废弃;EXTRA_CHANGED_PACKAGE_LIST表明改变了的package list;EXTRA_CHANGED_UID_LIST表明改变了的uid list
1 3991 /** 2 3992 * @deprecated See {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST}; this field 3 3993 * will contain only the first name in the list. 4 3994 */ 5 3995 @Deprecated public static final String EXTRA_CHANGED_COMPONENT_NAME = 6 3996 "android.intent.extra.changed_component_name"; 7 3997 8 3998 /** 9 3999 * This field is part of {@link android.content.Intent#ACTION_PACKAGE_CHANGED}, 10 4000 * and contains a string array of all of the components that have changed. If 11 4001 * the state of the overall package has changed, then it will contain an entry 12 4002 * with the package name itself. 13 4003 */ 14 4004 public static final String EXTRA_CHANGED_COMPONENT_NAME_LIST = 15 4005 "android.intent.extra.changed_component_name_list"; 16 4006 17 4007 /** 18 4008 * This field is part of 19 4009 * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE}, 20 4010 * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}, 21 4011 * {@link android.content.Intent#ACTION_PACKAGES_SUSPENDED}, 22 4012 * {@link android.content.Intent#ACTION_PACKAGES_UNSUSPENDED} 23 4013 * and contains a string array of all of the components that have changed. 24 4014 */ 25 4015 public static final String EXTRA_CHANGED_PACKAGE_LIST = 26 4016 "android.intent.extra.changed_package_list"; 27 4017 28 4018 /** 29 4019 * This field is part of 30 4020 * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE}, 31 4021 * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE} 32 4022 * and contains an integer array of uids of all of the components 33 4023 * that have changed. 34 4024 */ 35 4025 public static final String EXTRA_CHANGED_UID_LIST = 36 4026 "android.intent.extra.changed_uid_list";
EXTRA_CLENT_LABEL在binding是表明谁绑定到了某个服务；EXTRA_CLENT_INTENT表明可以被其启动的PendingIntent
1 4028 /** 2 4029 * @hide 3 4030 * Magic extra system code can use when binding, to give a label for 4 4031 * who it is that has bound to a service. This is an integer giving 5 4032 * a framework string resource that can be displayed to the user. 6 4033 */ 7 4034 public static final String EXTRA_CLIENT_LABEL = 8 4035 "android.intent.extra.client_label"; 9 4036 10 4037 /** 11 4038 * @hide 12 4039 * Magic extra system code can use when binding, to give a PendingIntent object 13 4040 * that can be launched for the user to disable the system's use of this 14 4041 * service. 15 4042 */ 16 4043 public static final String EXTRA_CLIENT_INTENT = 17 4044 "android.intent.extra.client_intent";
EXTRA_LOCAL_ONLY指示是否是只使用本地的数据
1 4046 /** 2 4047 * Extra used to indicate that an intent should only return data that is on 3 4048 * the local device. This is a boolean extra; the default is false. If true, 4 4049 * an implementation should only allow the user to select data that is 5 4050 * already on the device, not requiring it be downloaded from a remote 6 4051 * service when opened. 7 4052 * 8 4053 * @see #ACTION_GET_CONTENT 9 4054 * @see #ACTION_OPEN_DOCUMENT 10 4055 * @see #ACTION_OPEN_DOCUMENT_TREE 11 4056 * @see #ACTION_CREATE_DOCUMENT 12 4057 */ 13 4058 public static final String EXTRA_LOCAL_ONLY = 14 4059 "android.intent.extra.LOCAL_ONLY"; 15 4060
EXTRA_ALLOW_MULTIPLE允许选择多个对象
1 4061 /** 2 4062 * Extra used to indicate that an intent can allow the user to select and 3 4063 * return multiple items. This is a boolean extra; the default is false. If 4 4064 * true, an implementation is allowed to present the user with a UI where 5 4065 * they can pick multiple items that are all returned to the caller. When 6 4066 * this happens, they should be returned as the {@link #getClipData()} part 7 4067 * of the result Intent. 8 4068 * 9 4069 * @see #ACTION_GET_CONTENT 10 4070 * @see #ACTION_OPEN_DOCUMENT 11 4071 */ 12 4072 public static final String EXTRA_ALLOW_MULTIPLE = 13 4073 "android.intent.extra.ALLOW_MULTIPLE";
EXTRA_USER_HANDLE表明用户句柄
1 4075 /** 2 4076 * The integer userHandle carried with broadcast intents related to addition, removal and 3 4077 * switching of users and managed profiles - {@link #ACTION_USER_ADDED}, 4 4078 * {@link #ACTION_USER_REMOVED} and {@link #ACTION_USER_SWITCHED}. 5 4079 * 6 4080 * @hide 7 4081 */ 8 4082 public static final String EXTRA_USER_HANDLE = 9 4083 "android.intent.extra.user_handle"; 10 4084
EXTRA_USER表明相应用户
1 4085 /** 2 4086 * The UserHandle carried with broadcasts intents related to addition and removal of managed 3 4087 * profiles - {@link #ACTION_MANAGED_PROFILE_ADDED} and {@link #ACTION_MANAGED_PROFILE_REMOVED}. 4 4088 */ 5 4089 public static final String EXTRA_USER = 6 4090 "android.intent.extra.USER";
EXTRA_RESTRICTIONS_LIST，EXTRA_RESTRICTIONS_BUNDLE，EXTRA_RESTRICTIONS_INTENT表明相应限制权限的LIST，BUNDLE，INTENT
1 4092 /** 2 4093 * Extra used in the response from a BroadcastReceiver that handles 3 4094 * {@link #ACTION_GET_RESTRICTION_ENTRIES}. The type of the extra is 4 4095 * <code>ArrayList<RestrictionEntry></code>. 5 4096 */ 6 4097 public static final String EXTRA_RESTRICTIONS_LIST = "android.intent.extra.restrictions_list"; 7 4098 8 4099 /** 9 4100 * Extra sent in the intent to the BroadcastReceiver that handles 10 4101 * {@link #ACTION_GET_RESTRICTION_ENTRIES}. The type of the extra is a Bundle containing 11 4102 * the restrictions as key/value pairs. 12 4103 */ 13 4104 public static final String EXTRA_RESTRICTIONS_BUNDLE = 14 4105 "android.intent.extra.restrictions_bundle"; 15 4106 16 4107 /** 17 4108 * Extra used in the response from a BroadcastReceiver that handles 18 4109 * {@link #ACTION_GET_RESTRICTION_ENTRIES}. 19 4110 */ 20 4111 public static final String EXTRA_RESTRICTIONS_INTENT = 21 4112 "android.intent.extra.restrictions_intent";
EXTRA_MIME_TYPES表明MIME的类型
1 4114 /** 2 4115 * Extra used to communicate a set of acceptable MIME types. The type of the 3 4116 * extra is {@code String[]}. Values may be a combination of concrete MIME 4 4117 * types (such as "image/png") and/or partial MIME types (such as 5 4118 * "audio/*"). 6 4119 * 7 4120 * @see #ACTION_GET_CONTENT 8 4121 * @see #ACTION_OPEN_DOCUMENT 9 4122 */ 10 4123 public static final String EXTRA_MIME_TYPES = "android.intent.extra.MIME_TYPES";
EXTRA_SHUTDOWN_USERSPACE_ONLY表明是否只是重启用户空间的软件
1 4125 /** 2 4126 * Optional extra for {@link #ACTION_SHUTDOWN} that allows the sender to qualify that 3 4127 * this shutdown is only for the user space of the system, not a complete shutdown. 4 4128 * When this is true, hardware devices can use this information to determine that 5 4129 * they shouldn't do a complete shutdown of their device since this is not a 6 4130 * complete shutdown down to the kernel, but only user space restarting. 7 4131 * The default if not supplied is false. 8 4132 */ 9 4133 public static final String EXTRA_SHUTDOWN_USERSPACE_ONLY 10 4134 = "android.intent.extra.SHUTDOWN_USERSPACE_ONLY";
EXTRA_TIME_PREF_24_HOUR_FORMAT表明是否倾向24小时时间格式
1 4136 /** 2 4137 * Optional boolean extra for {@link #ACTION_TIME_CHANGED} that indicates the 3 4138 * user has set their time format preferences to the 24 hour format. 4 4139 * 5 4140 * @hide for internal use only. 6 4141 */ 7 4142 public static final String EXTRA_TIME_PREF_24_HOUR_FORMAT = 8 4143 "android.intent.extra.TIME_PREF_24_HOUR_FORMAT";
EXTRA_REASONG为reboot reason
1 4145 /** {@hide} */ 2 4146 public static final String EXTRA_REASON = "android.intent.extra.REASON";
EXTRA_SIM_ACTIVATION_RESPONSE表明sim激活的回复
1 4151 /** 2 4152 * Optional {@link android.app.PendingIntent} extra used to deliver the result of the SIM 3 4153 * activation request. 4 4154 * TODO: Add information about the structure and response data used with the pending intent. 5 4155 * @hide 6 4156 */ 7 4157 public static final String EXTRA_SIM_ACTIVATION_RESPONSE = 8 4158 "android.intent.extra.SIM_ACTIVATION_RESPONSE"; 9 4159
EXTRA_INDEX取决于具体情景，表明不同的index
1 4160 /** 2 4161 * Optional index with semantics depending on the intent action. 3 4162 * 4 4163 * <p>The value must be an integer greater or equal to 0. 5 4164 */ 6 4165 public static final String EXTRA_INDEX = "android.intent.extra.INDEX";
EXTRA_QUIET_MODE表明是否进入安静模式
1 4160 /** 2 4161 * Optional index with semantics depending on the intent action. 3 4162 * 4 4163 * <p>The value must be an integer greater or equal to 0. 5 4164 */ 6 4165 public static final String EXTRA_INDEX = "android.intent.extra.INDEX";
EXTRA_MEDIA_RESOURCE_TYPE表明过的的媒体类型；EXTRA_MEDIA_RESOURCE_TYPE_VIDEO_CODEC表明媒体类型为视频；EXTRA_MEDIA_RESOURCE_TYPE_AUDIO_CODEC表明媒体类型为音频
1 4186 /** 2 4187 * Used as an int value for {@link #EXTRA_MEDIA_RESOURCE_TYPE} 3 4188 * to represent that a video codec is allowed to use. 4 4189 * 5 4190 * @hide 6 4191 */ 7 4192 public static final int EXTRA_MEDIA_RESOURCE_TYPE_VIDEO_CODEC = 0; 8 4193 9 4194 /** 10 4195 * Used as an int value for {@link #EXTRA_MEDIA_RESOURCE_TYPE} 11 4196 * to represent that a audio codec is allowed to use. 12 4197 * 13 4198 * @hide 14 4199 */ 15 4200 public static final int EXTRA_MEDIA_RESOURCE_TYPE_AUDIO_CODEC = 1;
下面是Intent里的flags
先是定义一个注解类GrantUriMode
1 4202 // --------------------------------------------------------------------- 2 4203 // --------------------------------------------------------------------- 3 4204 // Intent flags (see mFlags variable). 4 4205 5 4206 /** @hide */ 6 4207 @IntDef(flag = true, value = { 7 4208 FLAG_GRANT_READ_URI_PERMISSION, FLAG_GRANT_WRITE_URI_PERMISSION, 8 4209 FLAG_GRANT_PERSISTABLE_URI_PERMISSION, FLAG_GRANT_PREFIX_URI_PERMISSION }) 9 4210 @Retention(RetentionPolicy.SOURCE) 10 4211 public @interface GrantUriMode {}
然后是AccessUriMode注解类
1 4213 /** @hide */ 2 4214 @IntDef(flag = true, value = { 3 4215 FLAG_GRANT_READ_URI_PERMISSION, FLAG_GRANT_WRITE_URI_PERMISSION }) 4 4216 @Retention(RetentionPolicy.SOURCE) 5 4217 public @interface AccessUriMode {} 6 4218
静态函数isAccessUriMode表明是否是可以访问Uri模式
1 4219 /** 2 4220 * Test if given mode flags specify an access mode, which must be at least 3 4221 * read and/or write. 4 4222 * 5 4223 * @hide 6 4224 */ 7 4225 public static boolean isAccessUriMode(int modeFlags) { 8 4226 return (modeFlags & (Intent.FLAG_GRANT_READ_URI_PERMISSION 9 4227 | Intent.FLAG_GRANT_WRITE_URI_PERMISSION)) != 0; 10 4228 }
FLAG_GRANT_READ_URI_PERMISSION和FLAG_GRANT_WRITE_URI_PERMISSION表明授予Intent接收者读写权限
1 4230 /** 2 4231 * If set, the recipient of this Intent will be granted permission to 3 4232 * perform read operations on the URI in the Intent's data and any URIs 4 4233 * specified in its ClipData. When applying to an Intent's ClipData, 5 4234 * all URIs as well as recursive traversals through data or other ClipData 6 4235 * in Intent items will be granted; only the grant flags of the top-level 7 4236 * Intent are used. 8 4237 */ 9 4238 public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001; 10 4239 /** 11 4240 * If set, the recipient of this Intent will be granted permission to 12 4241 * perform write operations on the URI in the Intent's data and any URIs 13 4242 * specified in its ClipData. When applying to an Intent's ClipData, 14 4243 * all URIs as well as recursive traversals through data or other ClipData 15 4244 * in Intent items will be granted; only the grant flags of the top-level 16 4245 * Intent are used. 17 4246 */ 18 4247 public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
FLAG_FROM_BACKGROUND表明Intent是从后台程序发出来的
1 4248 /** 2 4249 * Can be set by the caller to indicate that this Intent is coming from 3 4250 * a background operation, not from direct user interaction. 4 4251 */ 5 4252 public static final int FLAG_FROM_BACKGROUND = 0x00000004;
FLAG_DEBUG_LOG_RESOLUTION表明打印解析intent的log
1 4253 /** 2 4254 * A flag you can enable for debugging: when set, log messages will be 3 4255 * printed during the resolution of this intent to show you what has 4 4256 * been found to create the final resolved list. 5 4257 */ 6 4258 public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
FLAGS_EXCLUDE_STOPPED_PACKAGES表明排除停止运行的包；FLAG_INCLUDE_STOPPED_PACKAGES包含了停止运行的包，即使exclued的设置了
1 4259 /** 2 4260 * If set, this intent will not match any components in packages that 3 4261 * are currently stopped. If this is not set, then the default behavior 4 4262 * is to include such applications in the result. 5 4263 */ 6 4264 public static final int FLAG_EXCLUDE_STOPPED_PACKAGES = 0x00000010; 7 4265 /** 8 4266 * If set, this intent will always match any components in packages that 9 4267 * are currently stopped. This is the default behavior when 10 4268 * {@link #FLAG_EXCLUDE_STOPPED_PACKAGES} is not set. If both of these 11 4269 * flags are set, this one wins (it allows overriding of exclude for 12 4270 * places where the framework may automatically set the exclude flag). 13 4271 */ 14 4272 public static final int FLAG_INCLUDE_STOPPED_PACKAGES = 0x00000020;
FLAG_GRANT_PERSISTABLE_URI_PERMISSION表明权限授权会永久保留
1 4274 /** 2 4275 * When combined with {@link #FLAG_GRANT_READ_URI_PERMISSION} and/or 3 4276 * {@link #FLAG_GRANT_WRITE_URI_PERMISSION}, the URI permission grant can be 4 4277 * persisted across device reboots until explicitly revoked with 5 4278 * {@link Context#revokeUriPermission(Uri, int)}. This flag only offers the 6 4279 * grant for possible persisting; the receiving application must call 7 4280 * {@link ContentResolver#takePersistableUriPermission(Uri, int)} to 8 4281 * actually persist. 9 4282 * 10 4283 * @see ContentResolver#takePersistableUriPermission(Uri, int) 11 4284 * @see ContentResolver#releasePersistableUriPermission(Uri, int) 12 4285 * @see ContentResolver#getPersistedUriPermissions() 13 4286 * @see ContentResolver#getOutgoingPersistedUriPermissions() 14 4287 */ 15 4288 public static final int FLAG_GRANT_PERSISTABLE_URI_PERMISSION = 0x00000040;
FLAG_GRANT_PREFIX_URI_PERMISSION表明grant前缀匹配
1 4290 /** 2 4291 * When combined with {@link #FLAG_GRANT_READ_URI_PERMISSION} and/or 3 4292 * {@link #FLAG_GRANT_WRITE_URI_PERMISSION}, the URI permission grant 4 4293 * applies to any URI that is a prefix match against the original granted 5 4294 * URI. (Without this flag, the URI must match exactly for access to be 6 4295 * granted.) Another URI is considered a prefix match only when scheme, 7 4296 * authority, and all path segments defined by the prefix are an exact 8 4297 * match. 9 4298 */ 10 4299 public static final int FLAG_GRANT_PREFIX_URI_PERMISSION = 0x00000080;
FLAG_DEBUG_TRIAGED_MISSING表明已经系统组件验证过包里的组件了
1 4301 /** 2 4302 * Internal flag used to indicate that a system component has done their 3 4303 * homework and verified that they correctly handle packages and components 4 4304 * that come and go over time. In particular: 5 4305 * <ul> 6 4306 * <li>Apps installed on external storage, which will appear to be 7 4307 * uninstalled while the the device is ejected. 8 4308 * <li>Apps with encryption unaware components, which will appear to not 9 4309 * exist while the device is locked. 10 4310 * </ul> 11 4311 * 12 4312 * @hide 13 4313 */ 14 4314 public static final int FLAG_DEBUG_TRIAGED_MISSING = 0x00000100; 15 4315
FLAG_IGNORE_EPHEMERAL忽略ephemeral app
1 4316 /** 2 4317 * Internal flag used to indicate ephemeral applications should not be 3 4318 * considered when resolving the intent. 4 4319 * 5 4320 * @hide 6 4321 */ 7 4322 public static final int FLAG_IGNORE_EPHEMERAL = 0x00000200; 8 4323
FLAG_ACTIVITY_NO_HISTORY表明启动的activity不会出现在历史栈里
1 4324 /** 2 4325 * If set, the new activity is not kept in the history stack. As soon as 3 4326 * the user navigates away from it, the activity is finished. This may also 4 4327 * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory 5 4328 * noHistory} attribute. 6 4329 * 7 4330 * <p>If set, {@link android.app.Activity#onActivityResult onActivityResult()} 8 4331 * is never invoked when the current activity starts a new activity which 9 4332 * sets a result and finishes. 10 4333 */ 11 4334 public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
FLAG_ACTIVITY_SINGLE_TOP表明activity只能在栈顶有一个实例
1 4335 /** 2 4336 * If set, the activity will not be launched if it is already running 3 4337 * at the top of the history stack. 4 4338 */ 5 4339 public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
FLAG_ACTIVITY_NEW_TASK表明activity新起一个task，在任务管理器里新增一个。这个flag不能用于要求返回结果的activity
1 4340 /** 2 4341 * If set, this activity will become the start of a new task on this 3 4342 * history stack. A task (from the activity that started it to the 4 4343 * next task activity) defines an atomic group of activities that the 5 4344 * user can move to. Tasks can be moved to the foreground and background; 6 4345 * all of the activities inside of a particular task always remain in 7 4346 * the same order. See 8 4347 * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back 9 4348 * Stack</a> for more information about tasks. 10 4349 * 11 4350 * <p>This flag is generally used by activities that want 12 4351 * to present a "launcher" style behavior: they give the user a list of 13 4352 * separate things that can be done, which otherwise run completely 14 4353 * independently of the activity launching them. 15 4354 * 16 4355 * <p>When using this flag, if a task is already running for the activity 17 4356 * you are now starting, then a new activity will not be started; instead, 18 4357 * the current task will simply be brought to the front of the screen with 19 4358 * the state it was last in. See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag 20 4359 * to disable this behavior. 21 4360 * 22 4361 * <p>This flag can not be used when the caller is requesting a result from 23 4362 * the activity being launched. 24 4363 */ 25 4364 public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
FLAG_ACTIVITY_MULTIPLE_TASK允许即使在一个activity已经存在于一个task的情况下新开一个task
1 4365 /** 2 4366 * This flag is used to create a new task and launch an activity into it. 3 4367 * This flag is always paired with either {@link #FLAG_ACTIVITY_NEW_DOCUMENT} 4 4368 * or {@link #FLAG_ACTIVITY_NEW_TASK}. In both cases these flags alone would 5 4369 * search through existing tasks for ones matching this Intent. Only if no such 6 4370 * task is found would a new task be created. When paired with 7 4371 * FLAG_ACTIVITY_MULTIPLE_TASK both of these behaviors are modified to skip 8 4372 * the search for a matching task and unconditionally start a new task. 9 4373 * 10 4374 * <strong>When used with {@link #FLAG_ACTIVITY_NEW_TASK} do not use this 11 4375 * flag unless you are implementing your own 12 4376 * top-level application launcher.</strong> Used in conjunction with 13 4377 * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the 14 4378 * behavior of bringing an existing task to the foreground. When set, 15 4379 * a new task is <em>always</em> started to host the Activity for the 16 4380 * Intent, regardless of whether there is already an existing task running 17 4381 * the same thing. 18 4382 * 19 4383 * <p><strong>Because the default system does not include graphical task management, 20 4384 * you should not use this flag unless you provide some way for a user to 21 4385 * return back to the tasks you have launched.</strong> 22 4386 * 23 4387 * See {@link #FLAG_ACTIVITY_NEW_DOCUMENT} for details of this flag's use for 24 4388 * creating new document tasks. 25 4389 * 26 4390 * <p>This flag is ignored if one of {@link #FLAG_ACTIVITY_NEW_TASK} or 27 4391 * {@link #FLAG_ACTIVITY_NEW_DOCUMENT} is not also set. 28 4392 * 29 4393 * <p>See 30 4394 * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back 31 4395 * Stack</a> for more information about tasks. 32 4396 * 33 4397 * @see #FLAG_ACTIVITY_NEW_DOCUMENT 34 4398 * @see #FLAG_ACTIVITY_NEW_TASK 35 4399 */ 36 4400 public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
FLAG_ACTIVITY_CLEAR_TOP清除目标activity之上的activity
1 4401 /** 2 4402 * If set, and the activity being launched is already running in the 3 4403 * current task, then instead of launching a new instance of that activity, 4 4404 * all of the other activities on top of it will be closed and this Intent 5 4405 * will be delivered to the (now on top) old activity as a new Intent. 6 4406 * 7 4407 * <p>For example, consider a task consisting of the activities: A, B, C, D. 8 4408 * If D calls startActivity() with an Intent that resolves to the component 9 4409 * of activity B, then C and D will be finished and B receive the given 10 4410 * Intent, resulting in the stack now being: A, B. 11 4411 * 12 4412 * <p>The currently running instance of activity B in the above example will 13 4413 * either receive the new intent you are starting here in its 14 4414 * onNewIntent() method, or be itself finished and restarted with the 15 4415 * new intent. If it has declared its launch mode to be "multiple" (the 16 4416 * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in 17 4417 * the same intent, then it will be finished and re-created; for all other 18 4418 * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this 19 4419 * Intent will be delivered to the current instance's onNewIntent(). 20 4420 * 21 4421 * <p>This launch mode can also be used to good effect in conjunction with 22 4422 * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity 23 4423 * of a task, it will bring any currently running instance of that task 24 4424 * to the foreground, and then clear it to its root state. This is 25 4425 * especially useful, for example, when launching an activity from the 26 4426 * notification manager. 27 4427 * 28 4428 * <p>See 29 4429 * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back 30 4430 * Stack</a> for more information about tasks. 31 4431 */ 32 4432 public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
FLAG_ACTIVITY_FORWARD_RESULT表明新启动的activity传送的result将会给原来等待结果的，而不是现在的启动者
1 4433 /** 2 4434 * If set and this intent is being used to launch a new activity from an 3 4435 * existing one, then the reply target of the existing activity will be 4 4436 * transfered to the new activity. This way the new activity can call 5 4437 * {@link android.app.Activity#setResult} and have that result sent back to 6 4438 * the reply target of the original activity. 7 4439 */ 8 4440 public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
FLAG_ACTIVITY_PREVIOUS_IS_TOP表明前一个activity是top
1 4441 /** 2 4442 * If set and this intent is being used to launch a new activity from an 3 4443 * existing one, the current activity will not be counted as the top 4 4444 * activity for deciding whether the new intent should be delivered to 5 4445 * the top instead of starting a new one. The previous activity will 6 4446 * be used as the top, with the assumption being that the current activity 7 4447 * will finish itself immediately. 8 4448 */ 9 4449 public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS表明新的activity不会出现在最近的activity列表里
1 4450 /** 2 4451 * If set, the new activity is not kept in the list of recently launched 3 4452 * activities. 4 4453 */ 5 4454 public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
FLAG_ACTIVITY_BROUGHT_TO_FRONT是系统为单任务而设置
1 4455 /** 2 4456 * This flag is not normally set by application code, but set for you by 3 4457 * the system as described in the 4 4458 * {@link android.R.styleable#AndroidManifestActivity_launchMode 5 4459 * launchMode} documentation for the singleTask mode. 6 4460 */ 7 4461 public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
FLAG_ACTIVITY_RESET_TASK_IF_NEEDED表明activity被启动为一个新任务或者成为某个task的top。导致相应的task被重新设置
1 4462 /** 2 4463 * If set, and this activity is either being started in a new task or 3 4464 * bringing to the top an existing task, then it will be launched as 4 4465 * the front door of the task. This will result in the application of 5 4466 * any affinities needed to have that task in the proper state (either 6 4467 * moving activities to or from it), or simply resetting that task to 7 4468 * its initial state if needed. 8 4469 */ 9 4470 public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
FLAG_LAUNCHED_FROM_HISTORY表明从历史中启动，由系统设定
1 4471 /** 2 4472 * This flag is not normally set by application code, but set for you by 3 4473 * the system if this activity is being launched from history 4 4474 * (longpress home key). 5 4475 */ 6 4476 public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
FLAG_ACTIVITY_CLEAR_WHEN_TASK_CLEAR已经被废弃，用FLAG_ACTIVITY_NEW_DOCUMENT取代
1 4477 /** 2 4478 * @deprecated As of API 21 this performs identically to 3 4479 * {@link #FLAG_ACTIVITY_NEW_DOCUMENT} which should be used instead of this. 4 4480 */ 5 4481 public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
FLAG_ACTIVITY_NEW_DOCUMENT的值和FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET一样,表明同一个activity的不同实例包含不同文档可以出现在最近任务列表里
1 4482 /** 2 4483 * This flag is used to open a document into a new task rooted at the activity launched 3 4484 * by this Intent. Through the use of this flag, or its equivalent attribute, 4 4485 * {@link android.R.attr#documentLaunchMode} multiple instances of the same activity 5 4486 * containing different documents will appear in the recent tasks list. 6 4487 * 7 4488 * <p>The use of the activity attribute form of this, 8 4489 * {@link android.R.attr#documentLaunchMode}, is 9 4490 * preferred over the Intent flag described here. The attribute form allows the 10 4491 * Activity to specify multiple document behavior for all launchers of the Activity 11 4492 * whereas using this flag requires each Intent that launches the Activity to specify it. 12 4493 * 13 4494 * <p>Note that the default semantics of this flag w.r.t. whether the recents entry for 14 4495 * it is kept after the activity is finished is different than the use of 15 4496 * {@link #FLAG_ACTIVITY_NEW_TASK} and {@link android.R.attr#documentLaunchMode} -- if 16 4497 * this flag is being used to create a new recents entry, then by default that entry 17 4498 * will be removed once the activity is finished. You can modify this behavior with 18 4499 * {@link #FLAG_ACTIVITY_RETAIN_IN_RECENTS}. 19 4500 * 20 4501 * <p>FLAG_ACTIVITY_NEW_DOCUMENT may be used in conjunction with {@link 21 4502 * #FLAG_ACTIVITY_MULTIPLE_TASK}. When used alone it is the 22 4503 * equivalent of the Activity manifest specifying {@link 23 4504 * android.R.attr#documentLaunchMode}="intoExisting". When used with 24 4505 * FLAG_ACTIVITY_MULTIPLE_TASK it is the equivalent of the Activity manifest specifying 25 4506 * {@link android.R.attr#documentLaunchMode}="always". 26 4507 * 27 4508 * Refer to {@link android.R.attr#documentLaunchMode} for more information. 28 4509 * 29 4510 * @see android.R.attr#documentLaunchMode 30 4511 * @see #FLAG_ACTIVITY_MULTIPLE_TASK 31 4512 */ 32 4513 public static final int FLAG_ACTIVITY_NEW_DOCUMENT = FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET;
FLAG_ACTIVITY_NO_USER_ACTION表明onUserLeaveHint不会被调用
1 4514 /** 2 4515 * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint} 3 4516 * callback from occurring on the current frontmost activity before it is 4 4517 * paused as the newly-started activity is brought to the front. 5 4518 * 6 4519 * <p>Typically, an activity can rely on that callback to indicate that an 7 4520 * explicit user action has caused their activity to be moved out of the 8 4521 * foreground. The callback marks an appropriate point in the activity's 9 4522 * lifecycle for it to dismiss any notifications that it intends to display 10 4523 * "until the user has seen them," such as a blinking LED. 11 4524 * 12 4525 * <p>If an activity is ever started via any non-user-driven events such as 13 4526 * phone-call receipt or an alarm handler, this flag should be passed to {@link 14 4527 * Context#startActivity Context.startActivity}, ensuring that the pausing 15 4528 * activity does not think the user has acknowledged its notification. 16 4529 */ 17 4530 public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
FLAG_ACTIVITY_REORDER_TO_FRONT表明activity被启动后要去栈顶
1 4531 /** 2 4532 * If set in an Intent passed to {@link Context#startActivity Context.startActivity()}, 3 4533 * this flag will cause the launched activity to be brought to the front of its 4 4534 * task's history stack if it is already running. 5 4535 * 6 4536 * <p>For example, consider a task consisting of four activities: A, B, C, D. 7 4537 * If D calls startActivity() with an Intent that resolves to the component 8 4538 * of activity B, then B will be brought to the front of the history stack, 9 4539 * with this resulting order: A, C, D, B. 10 4540 * 11 4541 * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also 12 4542 * specified. 13 4543 */ 14 4544 public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
FLAG_ACTIVITY_NO_ANIMATION表明不显示过场动画
1 4545 /** 2 4546 * If set in an Intent passed to {@link Context#startActivity Context.startActivity()}, 3 4547 * this flag will prevent the system from applying an activity transition 4 4548 * animation to go to the next activity state. This doesn't mean an 5 4549 * animation will never run -- if another activity change happens that doesn't 6 4550 * specify this flag before the activity started here is displayed, then 7 4551 * that transition will be used. This flag can be put to good use 8 4552 * when you are going to do a series of activity operations but the 9 4553 * animation seen by the user shouldn't be driven by the first activity 10 4554 * change but rather a later one. 11 4555 */ 12 4556 public static final int FLAG_ACTIVITY_NO_ANIMATION = 0X00010000;
FLAG_ACTIVITY_CLEAR_TASK表明旧的关联task被清除
1 4557 /** 2 4558 * If set in an Intent passed to {@link Context#startActivity Context.startActivity()}, 3 4559 * this flag will cause any existing task that would be associated with the 4 4560 * activity to be cleared before the activity is started. That is, the activity 5 4561 * becomes the new root of an otherwise empty task, and any old activities 6 4562 * are finished. This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}. 7 4563 */ 8 4564 public static final int FLAG_ACTIVITY_CLEAR_TASK = 0X00008000;
FLAG_ACTIVITY_TASK_ON_HOME表明退出这个task后返回到home界面
1 4565 /** 2 4566 * If set in an Intent passed to {@link Context#startActivity Context.startActivity()}, 3 4567 * this flag will cause a newly launching task to be placed on top of the current 4 4568 * home activity task (if there is one). That is, pressing back from the task 5 4569 * will always return the user to home even if that was not the last activity they 6 4570 * saw. This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}. 7 4571 */ 8 4572 public static final int FLAG_ACTIVITY_TASK_ON_HOME = 0X00004000;
FLAG_ACTIVITY_RETAIN_IN_RECENTS表明activity保持在recent列表里
1 4573 /** 2 4574 * By default a document created by {@link #FLAG_ACTIVITY_NEW_DOCUMENT} will 3 4575 * have its entry in recent tasks removed when the user closes it (with back 4 4576 * or however else it may finish()). If you would like to instead allow the 5 4577 * document to be kept in recents so that it can be re-launched, you can use 6 4578 * this flag. When set and the task's activity is finished, the recents 7 4579 * entry will remain in the interface for the user to re-launch it, like a 8 4580 * recents entry for a top-level application. 9 4581 * <p> 10 4582 * The receiving activity can override this request with 11 4583 * {@link android.R.attr#autoRemoveFromRecents} or by explcitly calling 12 4584 * {@link android.app.Activity#finishAndRemoveTask() 13 4585 * Activity.finishAndRemoveTask()}. 14 4586 */ 15 4587 public static final int FLAG_ACTIVITY_RETAIN_IN_RECENTS = 0x00002000;
FLAG_ACTIVITY_LAUNCH_ADJACENT用在多屏模式，表明activity在一个新的屏幕启动
1 4589 /** 2 4590 * This flag is only used in split-screen multi-window mode. The new activity will be displayed 3 4591 * adjacent to the one launching it. This can only be used in conjunction with 4 4592 * {@link #FLAG_ACTIVITY_NEW_TASK}. Also, setting {@link #FLAG_ACTIVITY_MULTIPLE_TASK} is 5 4593 * required if you want a new instance of an existing activity to be created. 6 4594 */ 7 4595 public static final int FLAG_ACTIVITY_LAUNCH_ADJACENT = 0x00001000; 8 4596
FLAG_RECEIVER_REGISTER_ONLY表明只有注册的Broadcast Receiver组件会响应
1 4597 /** 2 4598 * If set, when sending a broadcast only registered receivers will be 3 4599 * called -- no BroadcastReceiver components will be launched. 4 4600 */ 5 4601 public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
FLAG_RECEIVER_REPLACE_PENDING表明当前Intent替换Pending的Intent
1 4602 /** 2 4603 * If set, when sending a broadcast the new broadcast will replace 3 4604 * any existing pending broadcast that matches it. Matching is defined 4 4605 * by {@link Intent#filterEquals(Intent) Intent.filterEquals} returning 5 4606 * true for the intents of the two broadcasts. When a match is found, 6 4607 * the new broadcast (and receivers associated with it) will replace the 7 4608 * existing one in the pending broadcast list, remaining at the same 8 4609 * position in the list. 9 4610 * 10 4611 * <p>This flag is most typically used with sticky broadcasts, which 11 4612 * only care about delivering the most recent values of the broadcast 12 4613 * to their receivers. 13 4614 */ 14 4615 public static final int FLAG_RECEIVER_REPLACE_PENDING = 0x20000000;
FLAG_RECEIVER_FOREGROUND表明接受者到前台运行
1 4616 /** 2 4617 * If set, when sending a broadcast the recipient is allowed to run at 3 4618 * foreground priority, with a shorter timeout interval. During normal 4 4619 * broadcasts the receivers are not automatically hoisted out of the 5 4620 * background priority class. 6 4621 */ 7 4622 public static final int FLAG_RECEIVER_FOREGROUND = 0x10000000;
FLAG_RECEIVER_NO_ABORT不允许放弃这个Intent
1 4623 /** 2 4624 * If this is an ordered broadcast, don't allow receivers to abort the broadcast. 3 4625 * They can still propagate results through to later receivers, but they can not prevent 4 4626 * later receivers from seeing the broadcast. 5 4627 */ 6 4628 public static final int FLAG_RECEIVER_NO_ABORT = 0x08000000;
FLAG_REVEIVER_REGISTERED_ONLY_BEFORE_BOOT表明只有boot之前注册的组件会响应
1 4629 /** 2 4630 * If set, when sending a broadcast <i>before boot has completed</i> only 3 4631 * registered receivers will be called -- no BroadcastReceiver components 4 4632 * will be launched. Sticky intent state will be recorded properly even 5 4633 * if no receivers wind up being called. If {@link #FLAG_RECEIVER_REGISTERED_ONLY} 6 4634 * is specified in the broadcast intent, this flag is unnecessary. 7 4635 * 8 4636 * <p>This flag is only for use by system sevices as a convenience to 9 4637 * avoid having to implement a more complex mechanism around detection 10 4638 * of boot completion. 11 4639 * 12 4640 * @hide 13 4641 */ 14 4642 public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x04000000;
FLAG_RECEIVER_BOOG_UPGRADE表明在系统ready前可以发Broadcast，为boot upgrade而用
1 4643 /** 2 4644 * Set when this broadcast is for a boot upgrade, a special mode that 3 4645 * allows the broadcast to be sent before the system is ready and launches 4 4646 * the app process with no providers running in it. 5 4647 * @hide 6 4648 */ 7 4649 public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x02000000;
FLAG_RECEIVER_INCLUDE_BACKGROUND表明只会找后台的程序
1 4650 /** 2 4651 * If set, the broadcast will always go to manifest receivers in background (cached 3 4652 * or not running) apps, regardless of whether that would be done by default. By 4 4653 * default they will only receive broadcasts if the broadcast has specified an 5 4654 * explicit component or package name. 6 4655 * @hide 7 4656 */ 8 4657 public static final int FLAG_RECEIVER_INCLUDE_BACKGROUND = 0x01000000;
FLAG_RECEIVER_EXCLUDE_BACKGROUND表明不包含后台的程序
1 4658 /** 2 4659 * If set, the broadcast will never go to manifest receivers in background (cached 3 4660 * or not running) apps, regardless of whether that would be done by default. By 4 4661 * default they will receive broadcasts if the broadcast has specified an 5 4662 * explicit component or package name. 6 4663 * @hide 7 4664 */ 8 4665 public static final int FLAG_RECEIVER_EXCLUDE_BACKGROUND = 0x00800000;
IMMUTABLE_FLAGS是FLAG_GRANT_READ_URI_PERMISSION,FLAG_GRANT_WRIT_URI_PERMISSION,FLAG_GRANT_PERSISTABLE_URI_PERMISSION,FLAG_GRANT_PREFIX_URI_PERMISSION的组合
1 4667 /** 2 4668 * @hide Flags that can't be changed with PendingIntent. 3 4669 */ 4 4670 public static final int IMMUTABLE_FLAGS = FLAG_GRANT_READ_URI_PERMISSION 5 4671 | FLAG_GRANT_WRITE_URI_PERMISSION | FLAG_GRANT_PERSISTABLE_URI_PERMISSION 6 4672 | FLAG_GRANT_PREFIX_URI_PERMISSION
URI_INTENT_SCHEME flag表明intetn: 组合
1 4674 // --------------------------------------------------------------------- 2 4675 // --------------------------------------------------------------------- 3 4676 // toUri() and parseUri() options. 4 4677 5 4678 /** 6 4679 * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string 7 4680 * always has the "intent:" scheme. This syntax can be used when you want 8 4681 * to later disambiguate between URIs that are intended to describe an 9 4682 * Intent vs. all others that should be treated as raw URIs. When used 10 4683 * with {@link #parseUri}, any other scheme will result in a generic 11 4684 * VIEW action for that raw URI. 12 4685 */ 13 4686 public static final int URI_INTENT_SCHEME = 1<<0;
URI_ANDROID_APP_SCHEME表明app的scheme，为了某个包名而做的简化。Intent的内容可以包含在这个URI里
1 4688 /** 2 4689 * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string 3 4690 * always has the "android-app:" scheme. This is a variation of 4 4691 * {@link #URI_INTENT_SCHEME} whose format is simpler for the case of an 5 4692 * http/https URI being delivered to a specific package name. The format 6 4693 * is: 7 4694 * 8 4695 * <pre class="prettyprint"> 9 4696 * android-app://{package_id}[/{scheme}[/{host}[/{path}]]][#Intent;{...}]</pre> 10 4697 * 11 4698 * <p>In this scheme, only the <code>package_id</code> is required. If you include a host, 12 4699 * you must also include a scheme; including a path also requires both a host and a scheme. 13 4700 * The final #Intent; fragment can be used without a scheme, host, or path. 14 4701 * Note that this can not be 15 4702 * used with intents that have a {@link #setSelector}, since the base intent 16 4703 * will always have an explicit package name.</p> 17 4704 * 18 4705 * <p>Some examples of how this scheme maps to Intent objects:</p> 19 4706 * <table border="2" width="85%" align="center" frame="hsides" rules="rows"> 20 4707 * <colgroup align="left" /> 21 4708 * <colgroup align="left" /> 22 4709 * <thead> 23 4710 * <tr><th>URI</th> <th>Intent</th></tr> 24 4711 * </thead> 25 4712 * 26 4713 * <tbody> 27 4714 * <tr><td><code>android-app://com.example.app</code></td> 28 4715 * <td><table style="margin:0;border:0;cellpadding:0;cellspacing:0"> 29 4716 * <tr><td>Action: </td><td>{@link #ACTION_MAIN}</td></tr> 30 4717 * <tr><td>Package: </td><td><code>com.example.app</code></td></tr> 31 4718 * </table></td> 32 4719 * </tr> 33 4720 * <tr><td><code>android-app://com.example.app/http/example.com</code></td> 34 4721 * <td><table style="margin:0;border:0;cellpadding:0;cellspacing:0"> 35 4722 * <tr><td>Action: </td><td>{@link #ACTION_VIEW}</td></tr> 36 4723 * <tr><td>Data: </td><td><code>http://example.com/</code></td></tr> 37 4724 * <tr><td>Package: </td><td><code>com.example.app</code></td></tr> 38 4725 * </table></td> 39 4726 * </tr> 40 4727 * <tr><td><code>android-app://com.example.app/http/example.com/foo?1234</code></td> 41 4728 * <td><table style="margin:0;border:0;cellpadding:0;cellspacing:0"> 42 4729 * <tr><td>Action: </td><td>{@link #ACTION_VIEW}</td></tr> 43 4730 * <tr><td>Data: </td><td><code>http://example.com/foo?1234</code></td></tr> 44 4731 * <tr><td>Package: </td><td><code>com.example.app</code></td></tr> 45 4732 * </table></td> 46 4733 * </tr> 47 4734 * <tr><td><code>android-app://com.example.app/<br />#Intent;action=com.example.MY_ACTION;end</code></td> 48 4735 * <td><table style="margin:0;border:0;cellpadding:0;cellspacing:0"> 49 4736 * <tr><td>Action: </td><td><code>com.example.MY_ACTION</code></td></tr> 50 4737 * <tr><td>Package: </td><td><code>com.example.app</code></td></tr> 51 4738 * </table></td> 52 4739 * </tr> 53 4740 * <tr><td><code>android-app://com.example.app/http/example.com/foo?1234<br />#Intent;action=com.example.MY_ACTION;end</code></td> 54 4741 * <td><table style="margin:0;border:0;cellpadding:0;cellspacing:0"> 55 4742 * <tr><td>Action: </td><td><code>com.example.MY_ACTION</code></td></tr> 56 4743 * <tr><td>Data: </td><td><code>http://example.com/foo?1234</code></td></tr> 57 4744 * <tr><td>Package: </td><td><code>com.example.app</code></td></tr> 58 4745 * </table></td> 59 4746 * </tr> 60 4747 * <tr><td><code>android-app://com.example.app/<br />#Intent;action=com.example.MY_ACTION;<br />i.some_int=100;S.some_str=hello;end</code></td> 61 4748 * <td><table border="" style="margin:0" > 62 4749 * <tr><td>Action: </td><td><code>com.example.MY_ACTION</code></td></tr> 63 4750 * <tr><td>Package: </td><td><code>com.example.app</code></td></tr> 64 4751 * <tr><td>Extras: </td><td><code>some_int=(int)100<br />some_str=(String)hello</code></td></tr> 65 4752 * </table></td> 66 4753 * </tr> 67 4754 * </tbody> 68 4755 * </table> 69 4756 */ 70 4757 public static final int URI_ANDROID_APP_SCHEME = 1<<1;
URI_ALLOW_UNSAFE表明允许解析不安全的信息
1 4759 /** 2 4760 * Flag for use with {@link #toUri} and {@link #parseUri}: allow parsing 3 4761 * of unsafe information. In particular, the flags {@link #FLAG_GRANT_READ_URI_PERMISSION}, 4 4762 * {@link #FLAG_GRANT_WRITE_URI_PERMISSION}, {@link #FLAG_GRANT_PERSISTABLE_URI_PERMISSION}, 5 4763 * and {@link #FLAG_GRANT_PREFIX_URI_PERMISSION} flags can not be set, so that the 6 4764 * generated Intent can not cause unexpected data access to happen. 7 4765 * 8 4766 * <p>If you do not trust the source of the URI being parsed, you should still do further 9 4767 * processing to protect yourself from it. In particular, when using it to start an 10 4768 * activity you should usually add in {@link #CATEGORY_BROWSABLE} to limit the activities 11 4769 * that can handle it.</p> 12 4770 */ 13 4771 public static final int URI_ALLOW_UNSAFE = 1<<2;
下边几个私有变量是Intent抽下的动作、数据、type、类别、extra、flags、对应组件、Intent seclector、clipdata、user、packange信息等内容，共12个
1 4775 private String mAction; 2 4776 private Uri mData; 3 4777 private String mType; 4 4778 private String mPackage; 5 4779 private ComponentName mComponent; 6 4780 private int mFlags; 7 4781 private ArraySet<String> mCategories; 8 4782 private Bundle mExtras; 9 4783 private Rect mSourceBounds; 10 4784 private Intent mSelector; 11 4785 private ClipData mClipData; 12 4786 private int mContentUserHint = UserHandle.USER_CURRENT;
下面看方法
构造函数与clone函数
1 4788 // --------------------------------------------------------------------- 2 4789 3 4790 /** 4 4791 * Create an empty intent. 5 4792 */ 6 4793 public Intent() { 7 4794 } 8 4795 9 4796 /** 10 4797 * Copy constructor. 11 4798 */ 12 4799 public Intent(Intent o) { 13 4800 this.mAction = o.mAction; 14 4801 this.mData = o.mData; 15 4802 this.mType = o.mType; 16 4803 this.mPackage = o.mPackage; 17 4804 this.mComponent = o.mComponent; 18 4805 this.mFlags = o.mFlags; 19 4806 this.mContentUserHint = o.mContentUserHint; 20 4807 if (o.mCategories != null) { 21 4808 this.mCategories = new ArraySet<String>(o.mCategories); 22 4809 } 23 4810 if (o.mExtras != null) { 24 4811 this.mExtras = new Bundle(o.mExtras); 25 4812 } 26 4813 if (o.mSourceBounds != null) { 27 4814 this.mSourceBounds = new Rect(o.mSourceBounds); 28 4815 } 29 4816 if (o.mSelector != null) { 30 4817 this.mSelector = new Intent(o.mSelector); 31 4818 } 32 4819 if (o.mClipData != null) { 33 4820 this.mClipData = new ClipData(o.mClipData); 34 4821 } 35 4822 } 36 4823 37 4824 @Override 38 4825 public Object clone() { 39 4826 return new Intent(this); 40 4827 } 41 4828 42 4829 private Intent(Intent o, boolean all) { 43 4830 this.mAction = o.mAction; 44 4831 this.mData = o.mData; 45 4832 this.mType = o.mType; 46 4833 this.mPackage = o.mPackage; 47 4834 this.mComponent = o.mComponent; 48 4835 if (o.mCategories != null) { 49 4836 this.mCategories = new ArraySet<String>(o.mCategories); 50 4837 } 51 4838 } 52 4839 53 4840 /** 54 4841 * Make a clone of only the parts of the Intent that are relevant for 55 4842 * filter matching: the action, data, type, component, and categories. 56 4843 */ 57 4844 public Intent cloneFilter() { 58 4845 return new Intent(this, false); 59 4846 }
下边这几个构造函数初始化Intent的部分变量
1 4848 /** 2 4849 * Create an intent with a given action. All other fields (data, type, 3 4850 * class) are null. Note that the action <em>must</em> be in a 4 4851 * namespace because Intents are used globally in the system -- for 5 4852 * example the system VIEW action is android.intent.action.VIEW; an 6 4853 * application's custom action would be something like 7 4854 * com.google.app.myapp.CUSTOM_ACTION. 8 4855 * 9 4856 * @param action The Intent action, such as ACTION_VIEW. 10 4857 */ 11 4858 public Intent(String action) { 12 4859 setAction(action); 13 4860 } 14 4861 15 4862 /** 16 4863 * Create an intent with a given action and for a given data url. Note 17 4864 * that the action <em>must</em> be in a namespace because Intents are 18 4865 * used globally in the system -- for example the system VIEW action is 19 4866 * android.intent.action.VIEW; an application's custom action would be 20 4867 * something like com.google.app.myapp.CUSTOM_ACTION. 21 4868 * 22 4869 * <p><em>Note: scheme and host name matching in the Android framework is 23 4870 * case-sensitive, unlike the formal RFC. As a result, 24 4871 * you should always ensure that you write your Uri with these elements 25 4872 * using lower case letters, and normalize any Uris you receive from 26 4873 * outside of Android to ensure the scheme and host is lower case.</em></p> 27 4874 * 28 4875 * @param action The Intent action, such as ACTION_VIEW. 29 4876 * @param uri The Intent data URI. 30 4877 */ 31 4878 public Intent(String action, Uri uri) { 32 4879 setAction(action); 33 4880 mData = uri; 34 4881 } 35 4882 36 4883 /** 37 4884 * Create an intent for a specific component. All other fields (action, data, 38 4885 * type, class) are null, though they can be modified later with explicit 39 4886 * calls. This provides a convenient way to create an intent that is 40 4887 * intended to execute a hard-coded class name, rather than relying on the 41 4888 * system to find an appropriate class for you; see {@link #setComponent} 42 4889 * for more information on the repercussions of this. 43 4890 * 44 4891 * @param packageContext A Context of the application package implementing 45 4892 * this class. 46 4893 * @param cls The component class that is to be used for the intent. 47 4894 * 48 4895 * @see #setClass 49 4896 * @see #setComponent 50 4897 * @see #Intent(String, android.net.Uri , Context, Class) 51 4898 */ 52 4899 public Intent(Context packageContext, Class<?> cls) { 53 4900 mComponent = new ComponentName(packageContext, cls); 54 4901 } 55 4902 56 4903 /** 57 4904 * Create an intent for a specific component with a specified action and data. 58 4905 * This is equivalent to using {@link #Intent(String, android.net.Uri)} to 59 4906 * construct the Intent and then calling {@link #setClass} to set its 60 4907 * class. 61 4908 * 62 4909 * <p><em>Note: scheme and host name matching in the Android framework is 63 4910 * case-sensitive, unlike the formal RFC. As a result, 64 4911 * you should always ensure that you write your Uri with these elements 65 4912 * using lower case letters, and normalize any Uris you receive from 66 4913 * outside of Android to ensure the scheme and host is lower case.</em></p> 67 4914 * 68 4915 * @param action The Intent action, such as ACTION_VIEW. 69 4916 * @param uri The Intent data URI. 70 4917 * @param packageContext A Context of the application package implementing 71 4918 * this class. 72 4919 * @param cls The component class that is to be used for the intent. 73 4920 * 74 4921 * @see #Intent(String, android.net.Uri) 75 4922 * @see #Intent(Context, Class) 76 4923 * @see #setClass 77 4924 * @see #setComponent 78 4925 */ 79 4926 public Intent(String action, Uri uri, 80 4927 Context packageContext, Class<?> cls) { 81 4928 setAction(action); 82 4929 mData = uri; 83 4930 mComponent = new ComponentName(packageContext, cls); 84 4931 }
makeMainActivity制作一个action为ACTION_MAIN，category为CATEGORY_LAUNCHER的Intent，并指定组件名字
1 4933 /** 2 4934 * Create an intent to launch the main (root) activity of a task. This 3 4935 * is the Intent that is started when the application's is launched from 4 4936 * Home. For anything else that wants to launch an application in the 5 4937 * same way, it is important that they use an Intent structured the same 6 4938 * way, and can use this function to ensure this is the case. 7 4939 * 8 4940 * <p>The returned Intent has the given Activity component as its explicit 9 4941 * component, {@link #ACTION_MAIN} as its action, and includes the 10 4942 * category {@link #CATEGORY_LAUNCHER}. This does <em>not</em> have 11 4943 * {@link #FLAG_ACTIVITY_NEW_TASK} set, though typically you will want 12 4944 * to do that through {@link #addFlags(int)} on the returned Intent. 13 4945 * 14 4946 * @param mainActivity The main activity component that this Intent will 15 4947 * launch. 16 4948 * @return Returns a newly created Intent that can be used to launch the 17 4949 * activity as a main application entry. 18 4950 * 19 4951 * @see #setClass 20 4952 * @see #setComponent 21 4953 */ 22 4954 public static Intent makeMainActivity(ComponentName mainActivity) { 23 4955 Intent intent = new Intent(ACTION_MAIN); 24 4956 intent.setComponent(mainActivity); 25 4957 intent.addCategory(CATEGORY_LAUNCHER); 26 4958 return intent; 27 4959 } 28 4960
makeMainSelectorActivity没有指定要启动的组件名，而是通过设置一个SelectorIntetn指定其selectorAction和seclectorCategory
1 4961 /** 2 4962 * Make an Intent for the main activity of an application, without 3 4963 * specifying a specific activity to run but giving a selector to find 4 4964 * the activity. This results in a final Intent that is structured 5 4965 * the same as when the application is launched from 6 4966 * Home. For anything else that wants to launch an application in the 7 4967 * same way, it is important that they use an Intent structured the same 8 4968 * way, and can use this function to ensure this is the case. 9 4969 * 10 4970 * <p>The returned Intent has {@link #ACTION_MAIN} as its action, and includes the 11 4971 * category {@link #CATEGORY_LAUNCHER}. This does <em>not</em> have 12 4972 * {@link #FLAG_ACTIVITY_NEW_TASK} set, though typically you will want 13 4973 * to do that through {@link #addFlags(int)} on the returned Intent. 14 4974 * 15 4975 * @param selectorAction The action name of the Intent's selector. 16 4976 * @param selectorCategory The name of a category to add to the Intent's 17 4977 * selector. 18 4978 * @return Returns a newly created Intent that can be used to launch the 19 4979 * activity as a main application entry. 20 4980 * 21 4981 * @see #setSelector(Intent) 22 4982 */ 23 4983 public static Intent makeMainSelectorActivity(String selectorAction, 24 4984 String selectorCategory) { 25 4985 Intent intent = new Intent(ACTION_MAIN); 26 4986 intent.addCategory(CATEGORY_LAUNCHER); 27 4987 Intent selector = new Intent(); 28 4988 selector.setAction(selectorAction); 29 4989 selector.addCategory(selectorCategory); 30 4990 intent.setSelector(selector); 31 4991 return intent; 32 4992 } 33 4993
makeRestartActivityTask表明建立一个新的task，并移除旧的task
1 4994 /** 2 4995 * Make an Intent that can be used to re-launch an application's task 3 4996 * in its base state. This is like {@link #makeMainActivity(ComponentName)}, 4 4997 * but also sets the flags {@link #FLAG_ACTIVITY_NEW_TASK} and 5 4998 * {@link #FLAG_ACTIVITY_CLEAR_TASK}. 6 4999 * 7 5000 * @param mainActivity The activity component that is the root of the 8 5001 * task; this is the activity that has been published in the application's 9 5002 * manifest as the main launcher icon. 10 5003 * 11 5004 * @return Returns a newly created Intent that can be used to relaunch the 12 5005 * activity's task in its root state. 13 5006 */ 14 5007 public static Intent makeRestartActivityTask(ComponentName mainActivity) { 15 5008 Intent intent = makeMainActivity(mainActivity); 16 5009 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK 17 5010 | Intent.FLAG_ACTIVITY_CLEAR_TASK); 18 5011 return intent; 19 5012 } 20 5013
getIntent调用parseUri，解析传入的Uri
1 5014 /** 2 5015 * Call {@link #parseUri} with 0 flags. 3 5016 * @deprecated Use {@link #parseUri} instead. 4 5017 */ 5 5018 @Deprecated 6 5019 public static Intent getIntent(String uri) throws URISyntaxException { 7 5020 return parseUri(uri, 0); 8 5021 }
parseUri把传入的Uri转换为一个Intent
1 5023 /** 2 5024 * Create an intent from a URI. This URI may encode the action, 3 5025 * category, and other intent fields, if it was returned by 4 5026 * {@link #toUri}. If the Intent was not generate by toUri(), its data 5 5027 * will be the entire URI and its action will be ACTION_VIEW. 6 5028 * 7 5029 * <p>The URI given here must not be relative -- that is, it must include 8 5030 * the scheme and full path. 9 5031 * 10 5032 * @param uri The URI to turn into an Intent. 11 5033 * @param flags Additional processing flags. Either 0, 12 5034 * {@link #URI_INTENT_SCHEME}, or {@link #URI_ANDROID_APP_SCHEME}. 13 5035 * 14 5036 * @return Intent The newly created Intent object. 15 5037 * 16 5038 * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax 17 5039 * it bad (as parsed by the Uri class) or the Intent data within the 18 5040 * URI is invalid. 19 5041 * 20 5042 * @see #toUri 21 5043 */ 22 5044 public static Intent parseUri(String uri, int flags) throws URISyntaxException { 23 5045 int i = 0; 24 5046 try { 25 5047 final boolean androidApp = uri.startsWith("android-app:"); 26 5048 27 5049 // Validate intent scheme if requested. 28 5050 if ((flags&(URI_INTENT_SCHEME|URI_ANDROID_APP_SCHEME)) != 0) { 29 5051 if (!uri.startsWith("intent:") && !androidApp) { 30 5052 Intent intent = new Intent(ACTION_VIEW); 31 5053 try { 32 5054 intent.setData(Uri.parse(uri)); 33 5055 } catch (IllegalArgumentException e) { 34 5056 throw new URISyntaxException(uri, e.getMessage()); 35 5057 } 36 5058 return intent; 37 5059 } 38 5060 } 39 5061 40 5062 i = uri.lastIndexOf("#"); 41 5063 // simple case 42 5064 if (i == -1) { 43 5065 if (!androidApp) { 44 5066 return new Intent(ACTION_VIEW, Uri.parse(uri)); 45 5067 } 46 5068 47 5069 // old format Intent URI 48 5070 } else if (!uri.startsWith("#Intent;", i)) { 49 5071 if (!androidApp) { 50 5072 return getIntentOld(uri, flags); 51 5073 } else { 52 5074 i = -1; 53 5075 } 54 5076 } 55 5077 56 5078 // new format 57 5079 Intent intent = new Intent(ACTION_VIEW); 58 5080 Intent baseIntent = intent; 59 5081 boolean explicitAction = false; 60 5082 boolean inSelector = false; 61 5083 62 5084 // fetch data part, if present 63 5085 String scheme = null; 64 5086 String data; 65 5087 if (i >= 0) { 66 5088 data = uri.substring(0, i); 67 5089 i += 8; // length of "#Intent;" 68 5090 } else { 69 5091 data = uri; 70 5092 } 71 5093 72 5094 // loop over contents of Intent, all name=value; 73 5095 while (i >= 0 && !uri.startsWith("end", i)) { 74 5096 int eq = uri.indexOf('=', i); 75 5097 if (eq < 0) eq = i-1; 76 5098 int semi = uri.indexOf(';', i); 77 5099 String value = eq < semi ? Uri.decode(uri.substring(eq + 1, semi)) : ""; 78 5100 79 5101 // action 80 5102 if (uri.startsWith("action=", i)) { 81 5103 intent.setAction(value); 82 5104 if (!inSelector) { 83 5105 explicitAction = true; 84 5106 } 85 5107 } 86 5108 87 5109 // categories 88 5110 else if (uri.startsWith("category=", i)) { 89 5111 intent.addCategory(value); 90 5112 } 91 5113 92 5114 // type 93 5115 else if (uri.startsWith("type=", i)) { 94 5116 intent.mType = value; 95 5117 } 96 5118 97 5119 // launch flags 98 5120 else if (uri.startsWith("launchFlags=", i)) { 99 5121 intent.mFlags = Integer.decode(value).intValue(); 100 5122 if ((flags& URI_ALLOW_UNSAFE) == 0) { 101 5123 intent.mFlags &= ~IMMUTABLE_FLAGS; 102 5124 } 103 5125 } 104 5126 105 5127 // package 106 5128 else if (uri.startsWith("package=", i)) { 107 5129 intent.mPackage = value; 108 5130 } 109 5131 110 5132 // component 111 5133 else if (uri.startsWith("component=", i)) { 112 5134 intent.mComponent = ComponentName.unflattenFromString(value); 113 5135 } 114 5136 115 5137 // scheme 116 5138 else if (uri.startsWith("scheme=", i)) { 117 5139 if (inSelector) { 118 5140 intent.mData = Uri.parse(value + ":"); 119 5141 } else { 120 5142 scheme = value; 121 5143 } 122 5144 } 123 5145 124 5146 // source bounds 125 5147 else if (uri.startsWith("sourceBounds=", i)) { 126 5148 intent.mSourceBounds = Rect.unflattenFromString(value); 127 5149 } 128 5150 129 5151 // selector 130 5152 else if (semi == (i+3) && uri.startsWith("SEL", i)) { 131 5153 intent = new Intent(); 132 5154 inSelector = true; 133 5155 } 134 5156 135 5157 // extra 136 5158 else { 137 5159 String key = Uri.decode(uri.substring(i + 2, eq)); 138 5160 // create Bundle if it doesn't already exist 139 5161 if (intent.mExtras == null) intent.mExtras = new Bundle(); 140 5162 Bundle b = intent.mExtras; 141 5163 // add EXTRA 142 5164 if (uri.startsWith("S.", i)) b.putString(key, value); 143 5165 else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value)); 144 5166 else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value)); 145 5167 else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0)); 146 5168 else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value)); 147 5169 else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value)); 148 5170 else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value)); 149 5171 else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value)); 150 5172 else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value)); 151 5173 else throw new URISyntaxException(uri, "unknown EXTRA type", i); 152 5174 } 153 5175 154 5176 // move to the next item 155 5177 i = semi + 1; 156 5178 } 157 5179 158 5180 if (inSelector) { 159 5181 // The Intent had a selector; fix it up. 160 5182 if (baseIntent.mPackage == null) { 161 5183 baseIntent.setSelector(intent); 162 5184 } 163 5185 intent = baseIntent; 164 5186 } 165 5187 166 5188 if (data != null) { 167 5189 if (data.startsWith("intent:")) { 168 5190 data = data.substring(7); 169 5191 if (scheme != null) { 170 5192 data = scheme + ':' + data; 171 5193 } 172 5194 } else if (data.startsWith("android-app:")) { 173 5195 if (data.charAt(12) == '/' && data.charAt(13) == '/') { 174 5196 // Correctly formed android-app, first part is package name. 175 5197 int end = data.indexOf('/', 14); 176 5198 if (end < 0) { 177 5199 // All we have is a package name. 178 5200 intent.mPackage = data.substring(14); 179 5201 if (!explicitAction) { 180 5202 intent.setAction(ACTION_MAIN); 181 5203 } 182 5204 data = ""; 183 5205 } else { 184 5206 // Target the Intent at the given package name always. 185 5207 String authority = null; 186 5208 intent.mPackage = data.substring(14, end); 187 5209 int newEnd; 188 5210 if ((end+1) < data.length()) { 189 5211 if ((newEnd=data.indexOf('/', end+1)) >= 0) { 190 5212 // Found a scheme, remember it. 191 5213 scheme = data.substring(end+1, newEnd); 192 5214 end = newEnd; 193 5215 if (end < data.length() && (newEnd=data.indexOf('/', end+1)) >= 0) { 194 5216 // Found a authority, remember it. 195 5217 authority = data.substring(end+1, newEnd); 196 5218 end = newEnd; 197 5219 } 198 5220 } else { 199 5221 // All we have is a scheme. 200 5222 scheme = data.substring(end+1); 201 5223 } 202 5224 } 203 5225 if (scheme == null) { 204 5226 // If there was no scheme, then this just targets the package. 205 5227 if (!explicitAction) { 206 5228 intent.setAction(ACTION_MAIN); 207 5229 } 208 5230 data = ""; 209 5231 } else if (authority == null) { 210 5232 data = scheme + ":"; 211 5233 } else { 212 5234 data = scheme + "://" + authority + data.substring(end); 213 5235 } 214 5236 } 215 5237 } else { 216 5238 data = ""; 217 5239 } 218 5240 } 219 5241 220 5242 if (data.length() > 0) { 221 5243 try { 222 5244 intent.mData = Uri.parse(data); 223 5245 } catch (IllegalArgumentException e) { 224 5246 throw new URISyntaxException(uri, e.getMessage()); 225 5247 } 226 5248 } 227 5249 } 228 5250 229 5251 return intent; 230 5252 231 5253 } catch (IndexOutOfBoundsException e) { 232 5254 throw new URISyntaxException(uri, "illegal Intent URI format", i); 233 5255 } 234 5256 }
getIntentOld解析旧的Uri格式
1 5258 public static Intent getIntentOld(String uri) throws URISyntaxException { 2 5259 return getIntentOld(uri, 0); 3 5260 } 4 5261 5 5262 private static Intent getIntentOld(String uri, int flags) throws URISyntaxException { 6 5263 Intent intent; 7 5264 8 5265 int i = uri.lastIndexOf('#'); 9 5266 if (i >= 0) { 10 5267 String action = null; 11 5268 final int intentFragmentStart = i; 12 5269 boolean isIntentFragment = false; 13 5270 14 5271 i++; 15 5272 16 5273 if (uri.regionMatches(i, "action(", 0, 7)) { 17 5274 isIntentFragment = true; 18 5275 i += 7; 19 5276 int j = uri.indexOf(')', i); 20 5277 action = uri.substring(i, j); 21 5278 i = j + 1; 22 5279 } 23 5280 24 5281 intent = new Intent(action); 25 5282 26 5283 if (uri.regionMatches(i, "categories(", 0, 11)) { 27 5284 isIntentFragment = true; 28 5285 i += 11; 29 5286 int j = uri.indexOf(')', i); 30 5287 while (i < j) { 31 5288 int sep = uri.indexOf('!', i); 32 5289 if (sep < 0 || sep > j) sep = j; 33 5290 if (i < sep) { 34 5291 intent.addCategory(uri.substring(i, sep)); 35 5292 } 36 5293 i = sep + 1; 37 5294 } 38 5295 i = j + 1; 39 5296 } 40 5297 41 5298 if (uri.regionMatches(i, "type(", 0, 5)) { 42 5299 isIntentFragment = true; 43 5300 i += 5; 44 5301 int j = uri.indexOf(')', i); 45 5302 intent.mType = uri.substring(i, j); 46 5303 i = j + 1; 47 5304 } 48 5305 49 5306 if (uri.regionMatches(i, "launchFlags(", 0, 12)) { 50 5307 isIntentFragment = true; 51 5308 i += 12; 52 5309 int j = uri.indexOf(')', i); 53 5310 intent.mFlags = Integer.decode(uri.substring(i, j)).intValue(); 54 5311 if ((flags& URI_ALLOW_UNSAFE) == 0) { 55 5312 intent.mFlags &= ~IMMUTABLE_FLAGS; 56 5313 } 57 5314 i = j + 1; 58 5315 } 59 5316 60 5317 if (uri.regionMatches(i, "component(", 0, 10)) { 61 5318 isIntentFragment = true; 62 5319 i += 10; 63 5320 int j = uri.indexOf(')', i); 64 5321 int sep = uri.indexOf('!', i); 65 5322 if (sep >= 0 && sep < j) { 66 5323 String pkg = uri.substring(i, sep); 67 5324 String cls = uri.substring(sep + 1, j); 68 5325 intent.mComponent = new ComponentName(pkg, cls); 69 5326 } 70 5327 i = j + 1; 71 5328 } 72 5329 73 5330 if (uri.regionMatches(i, "extras(", 0, 7)) { 74 5331 isIntentFragment = true; 75 5332 i += 7; 76 5333 77 5334 final int closeParen = uri.indexOf(')', i); 78 5335 if (closeParen == -1) throw new URISyntaxException(uri, 79 5336 "EXTRA missing trailing ')'", i); 80 5337 81 5338 while (i < closeParen) { 82 5339 // fetch the key value 83 5340 int j = uri.indexOf('=', i); 84 5341 if (j <= i + 1 || i >= closeParen) { 85 5342 throw new URISyntaxException(uri, "EXTRA missing '='", i); 86 5343 } 87 5344 char type = uri.charAt(i); 88 5345 i++; 89 5346 String key = uri.substring(i, j); 90 5347 i = j + 1; 91 5348 92 5349 // get type-value 93 5350 j = uri.indexOf('!', i); 94 5351 if (j == -1 || j >= closeParen) j = closeParen; 95 5352 if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i); 96 5353 String value = uri.substring(i, j); 97 5354 i = j; 98 5355 99 5356 // create Bundle if it doesn't already exist 100 5357 if (intent.mExtras == null) intent.mExtras = new Bundle(); 101 5358 102 5359 // add item to bundle 103 5360 try { 104 5361 switch (type) { 105 5362 case 'S': 106 5363 intent.mExtras.putString(key, Uri.decode(value)); 107 5364 break; 108 5365 case 'B': 109 5366 intent.mExtras.putBoolean(key, Boolean.parseBoolean(value)); 110 5367 break; 111 5368 case 'b': 112 5369 intent.mExtras.putByte(key, Byte.parseByte(value)); 113 5370 break; 114 5371 case 'c': 115 5372 intent.mExtras.putChar(key, Uri.decode(value).charAt(0)); 116 5373 break; 117 5374 case 'd': 118 5375 intent.mExtras.putDouble(key, Double.parseDouble(value)); 119 5376 break; 120 5377 case 'f': 121 5378 intent.mExtras.putFloat(key, Float.parseFloat(value)); 122 5379 break; 123 5380 case 'i': 124 5381 intent.mExtras.putInt(key, Integer.parseInt(value)); 125 5382 break; 126 5383 case 'l': 127 5384 intent.mExtras.putLong(key, Long.parseLong(value)); 128 5385 break; 129 5386 case 's': 130 5387 intent.mExtras.putShort(key, Short.parseShort(value)); 131 5388 break; 132 5389 default: 133 5390 throw new URISyntaxException(uri, "EXTRA has unknown type", i); 134 5391 } 135 5392 } catch (NumberFormatException e) { 136 5393 throw new URISyntaxException(uri, "EXTRA value can't be parsed", i); 137 5394 } 138 5395 139 5396 char ch = uri.charAt(i); 140 5397 if (ch == ')') break; 141 5398 if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i); 142 5399 i++; 143 5400 } 144 5401 } 145 5402 146 5403 if (isIntentFragment) { 147 5404 intent.mData = Uri.parse(uri.substring(0, intentFragmentStart)); 148 5405 } else { 149 5406 intent.mData = Uri.parse(uri); 150 5407 } 151 5408 152 5409 if (intent.mAction == null) { 153 5410 // By default, if no action is specified, then use VIEW. 154 5411 intent.mAction = ACTION_VIEW; 155 5412 } 156 5413 157 5414 } else { 158 5415 intent = new Intent(ACTION_VIEW, Uri.parse(uri)); 159 5416 } 160 5417 161 5418 return intent; 162 5419 } 163 5420
内部接口CommandOptionHanlder有一个函数handleOption
1 5421 /** @hide */ 2 5422 public interface CommandOptionHandler { 3 5423 boolean handleOption(String opt, ShellCommand cmd); 4 5424 } 5 5425
parseCommnadArgs解析shellcommand
1 5426 /** @hide */ 2 5427 public static Intent parseCommandArgs(ShellCommand cmd, CommandOptionHandler optionHandler) 3 5428 throws URISyntaxException { 4 5429 Intent intent = new Intent(); 5 5430 Intent baseIntent = intent; 6 5431 boolean hasIntentInfo = false; 7 5432 8 5433 Uri data = null; 9 5434 String type = null; 10 5435 11 5436 String opt; 12 5437 while ((opt=cmd.getNextOption()) != null) { 13 5438 switch (opt) { 14 5439 case "-a": 15 5440 intent.setAction(cmd.getNextArgRequired()); 16 5441 if (intent == baseIntent) { 17 5442 hasIntentInfo = true; 18 5443 } 19 5444 break; 20 5445 case "-d": 21 5446 data = Uri.parse(cmd.getNextArgRequired()); 22 5447 if (intent == baseIntent) { 23 5448 hasIntentInfo = true; 24 5449 } 25 5450 break; 26 5451 case "-t": 27 5452 type = cmd.getNextArgRequired(); 28 5453 if (intent == baseIntent) { 29 5454 hasIntentInfo = true; 30 5455 } 31 5456 break; 32 5457 case "-c": 33 5458 intent.addCategory(cmd.getNextArgRequired()); 34 5459 if (intent == baseIntent) { 35 5460 hasIntentInfo = true; 36 5461 } 37 5462 break; 38 5463 case "-e": 39 5464 case "--es": { 40 5465 String key = cmd.getNextArgRequired(); 41 5466 String value = cmd.getNextArgRequired(); 42 5467 intent.putExtra(key, value); 43 5468 } 44 5469 break; 45 5470 case "--esn": { 46 5471 String key = cmd.getNextArgRequired(); 47 5472 intent.putExtra(key, (String) null); 48 5473 } 49 5474 break; 50 5475 case "--ei": { 51 5476 String key = cmd.getNextArgRequired(); 52 5477 String value = cmd.getNextArgRequired(); 53 5478 intent.putExtra(key, Integer.decode(value)); 54 5479 } 55 5480 break; 56 5481 case "--eu": { 57 5482 String key = cmd.getNextArgRequired(); 58 5483 String value = cmd.getNextArgRequired(); 59 5484 intent.putExtra(key, Uri.parse(value)); 60 5485 } 61 5486 break; 62 5487 case "--ecn": { 63 5488 String key = cmd.getNextArgRequired(); 64 5489 String value = cmd.getNextArgRequired(); 65 5490 ComponentName cn = ComponentName.unflattenFromString(value); 66 5491 if (cn == null) 67 5492 throw new IllegalArgumentException("Bad component name: " + value); 68 5493 intent.putExtra(key, cn); 69 5494 } 70 5495 break; 71 5496 case "--eia": { 72 5497 String key = cmd.getNextArgRequired(); 73 5498 String value = cmd.getNextArgRequired(); 74 5499 String[] strings = value.split(","); 75 5500 int[] list = new int[strings.length]; 76 5501 for (int i = 0; i < strings.length; i++) { 77 5502 list[i] = Integer.decode(strings[i]); 78 5503 } 79 5504 intent.putExtra(key, list); 80 5505 } 81 5506 break; 82 5507 case "--eial": { 83 5508 String key = cmd.getNextArgRequired(); 84 5509 String value = cmd.getNextArgRequired(); 85 5510 String[] strings = value.split(","); 86 5511 ArrayList<Integer> list = new ArrayList<>(strings.length); 87 5512 for (int i = 0; i < strings.length; i++) { 88 5513 list.add(Integer.decode(strings[i])); 89 5514 } 90 5515 intent.putExtra(key, list); 91 5516 } 92 5517 break; 93 5518 case "--el": { 94 5519 String key = cmd.getNextArgRequired(); 95 5520 String value = cmd.getNextArgRequired(); 96 5521 intent.putExtra(key, Long.valueOf(value)); 97 5522 } 98 5523 break; 99 5524 case "--ela": { 100 5525 String key = cmd.getNextArgRequired(); 101 5526 String value = cmd.getNextArgRequired(); 102 5527 String[] strings = value.split(","); 103 5528 long[] list = new long[strings.length]; 104 5529 for (int i = 0; i < strings.length; i++) { 105 5530 list[i] = Long.valueOf(strings[i]); 106 5531 } 107 5532 intent.putExtra(key, list); 108 5533 hasIntentInfo = true; 109 5534 } 110 5535 break; 111 5536 case "--elal": { 112 5537 String key = cmd.getNextArgRequired(); 113 5538 String value = cmd.getNextArgRequired(); 114 5539 String[] strings = value.split(","); 115 5540 ArrayList<Long> list = new ArrayList<>(strings.length); 116 5541 for (int i = 0; i < strings.length; i++) { 117 5542 list.add(Long.valueOf(strings[i])); 118 5543 } 119 5544 intent.putExtra(key, list); 120 5545 hasIntentInfo = true; 121 5546 } 122 5547 break; 123 5548 case "--ef": { 124 5549 String key = cmd.getNextArgRequired(); 125 5550 String value = cmd.getNextArgRequired(); 126 5551 intent.putExtra(key, Float.valueOf(value)); 127 5552 hasIntentInfo = true; 128 5553 } 129 5554 break; 130 5555 case "--efa": { 131 5556 String key = cmd.getNextArgRequired(); 132 5557 String value = cmd.getNextArgRequired(); 133 5558 String[] strings = value.split(","); 134 5559 float[] list = new float[strings.length]; 135 5560 for (int i = 0; i < strings.length; i++) { 136 5561 list[i] = Float.valueOf(strings[i]); 137 5562 } 138 5563 intent.putExtra(key, list); 139 5564 hasIntentInfo = true; 140 5565 } 141 5566 break; 142 5567 case "--efal": { 143 5568 String key = cmd.getNextArgRequired(); 144 5569 String value = cmd.getNextArgRequired(); 145 5570 String[] strings = value.split(","); 146 5571 ArrayList<Float> list = new ArrayList<>(strings.length); 147 5572 for (int i = 0; i < strings.length; i++) { 148 5573 list.add(Float.valueOf(strings[i])); 149 5574 } 150 5575 intent.putExtra(key, list); 151 5576 hasIntentInfo = true; 152 5577 } 153 5578 break; 154 5579 case "--esa": { 155 5580 String key = cmd.getNextArgRequired(); 156 5581 String value = cmd.getNextArgRequired(); 157 5582 // Split on commas unless they are preceeded by an escape. 158 5583 // The escape character must be escaped for the string and 159 5584 // again for the regex, thus four escape characters become one. 160 5585 String[] strings = value.split("(?<!\\\\),"); 161 5586 intent.putExtra(key, strings); 162 5587 hasIntentInfo = true; 163 5588 } 164 5589 break; 165 5590 case "--esal": { 166 5591 String key = cmd.getNextArgRequired(); 167 5592 String value = cmd.getNextArgRequired(); 168 5593 // Split on commas unless they are preceeded by an escape. 169 5594 // The escape character must be escaped for the string and 170 5595 // again for the regex, thus four escape characters become one. 171 5596 String[] strings = value.split("(?<!\\\\),"); 172 5597 ArrayList<String> list = new ArrayList<>(strings.length); 173 5598 for (int i = 0; i < strings.length; i++) { 174 5599 list.add(strings[i]); 175 5600 } 176 5601 intent.putExtra(key, list); 177 5602 hasIntentInfo = true; 178 5603 } 179 5604 break; 180 5605 case "--ez": { 181 5606 String key = cmd.getNextArgRequired(); 182 5607 String value = cmd.getNextArgRequired().toLowerCase(); 183 5608 // Boolean.valueOf() results in false for anything that is not "true", which is 184 5609 // error-prone in shell commands 185 5610 boolean arg; 186 5611 if ("true".equals(value) || "t".equals(value)) { 187 5612 arg = true; 188 5613 } else if ("false".equals(value) || "f".equals(value)) { 189 5614 arg = false; 190 5615 } else { 191 5616 try { 192 5617 arg = Integer.decode(value) != 0; 193 5618 } catch (NumberFormatException ex) { 194 5619 throw new IllegalArgumentException("Invalid boolean value: " + value); 195 5620 } 196 5621 } 197 5622 198 5623 intent.putExtra(key, arg); 199 5624 } 200 5625 break; 201 5626 case "-n": { 202 5627 String str = cmd.getNextArgRequired(); 203 5628 ComponentName cn = ComponentName.unflattenFromString(str); 204 5629 if (cn == null) 205 5630 throw new IllegalArgumentException("Bad component name: " + str); 206 5631 intent.setComponent(cn); 207 5632 if (intent == baseIntent) { 208 5633 hasIntentInfo = true; 209 5634 } 210 5635 } 211 5636 break; 212 5637 case "-p": { 213 5638 String str = cmd.getNextArgRequired(); 214 5639 intent.setPackage(str); 215 5640 if (intent == baseIntent) { 216 5641 hasIntentInfo = true; 217 5642 } 218 5643 } 219 5644 break; 220 5645 case "-f": 221 5646 String str = cmd.getNextArgRequired(); 222 5647 intent.setFlags(Integer.decode(str).intValue()); 223 5648 break; 224 5649 case "--grant-read-uri-permission": 225 5650 intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 226 5651 break; 227 5652 case "--grant-write-uri-permission": 228 5653 intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION); 229 5654 break; 230 5655 case "--grant-persistable-uri-permission": 231 5656 intent.addFlags(Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION); 232 5657 break; 233 5658 case "--grant-prefix-uri-permission": 234 5659 intent.addFlags(Intent.FLAG_GRANT_PREFIX_URI_PERMISSION); 235 5660 break; 236 5661 case "--exclude-stopped-packages": 237 5662 intent.addFlags(Intent.FLAG_EXCLUDE_STOPPED_PACKAGES); 238 5663 break; 239 5664 case "--include-stopped-packages": 240 5665 intent.addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES); 241 5666 break; 242 5667 case "--debug-log-resolution": 243 5668 intent.addFlags(Intent.FLAG_DEBUG_LOG_RESOLUTION); 244 5669 break; 245 5670 case "--activity-brought-to-front": 246 5671 intent.addFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT); 247 5672 break; 248 5673 case "--activity-clear-top": 249 5674 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 250 5675 break; 251 5676 case "--activity-clear-when-task-reset": 252 5677 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET); 253 5678 break; 254 5679 case "--activity-exclude-from-recents": 255 5680 intent.addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 256 5681 break; 257 5682 case "--activity-launched-from-history": 258 5683 intent.addFlags(Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY); 259 5684 break; 260 5685 case "--activity-multiple-task": 261 5686 intent.addFlags(Intent.FLAG_ACTIVITY_MULTIPLE_TASK); 262 5687 break; 263 5688 case "--activity-no-animation": 264 5689 intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION); 265 5690 break; 266 5691 case "--activity-no-history": 267 5692 intent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY); 268 5693 break; 269 5694 case "--activity-no-user-action": 270 5695 intent.addFlags(Intent.FLAG_ACTIVITY_NO_USER_ACTION); 271 5696 break; 272 5697 case "--activity-previous-is-top": 273 5698 intent.addFlags(Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP); 274 5699 break; 275 5700 case "--activity-reorder-to-front": 276 5701 intent.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT); 277 5702 break; 278 5703 case "--activity-reset-task-if-needed": 279 5704 intent.addFlags(Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); 280 5705 break; 281 5706 case "--activity-single-top": 282 5707 intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP); 283 5708 break; 284 5709 case "--activity-clear-task": 285 5710 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK); 286 5711 break; 287 5712 case "--activity-task-on-home": 288 5713 intent.addFlags(Intent.FLAG_ACTIVITY_TASK_ON_HOME); 289 5714 break; 290 5715 case "--receiver-registered-only": 291 5716 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 292 5717 break; 293 5718 case "--receiver-replace-pending": 294 5719 intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); 295 5720 break; 296 5721 case "--receiver-foreground": 297 5722 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 298 5723 break; 299 5724 case "--selector": 300 5725 intent.setDataAndType(data, type); 301 5726 intent = new Intent(); 302 5727 break; 303 5728 default: 304 5729 if (optionHandler != null && optionHandler.handleOption(opt, cmd)) { 305 5730 // Okay, caller handled this option. 306 5731 } else { 307 5732 throw new IllegalArgumentException("Unknown option: " + opt); 308 5733 } 309 5734 break; 310 5735 } 311 5736 } 312 5737 intent.setDataAndType(data, type); 313 5738 314 5739 final boolean hasSelector = intent != baseIntent; 315 5740 if (hasSelector) { 316 5741 // A selector was specified; fix up. 317 5742 baseIntent.setSelector(intent); 318 5743 intent = baseIntent; 319 5744 } 320 5745 321 5746 String arg = cmd.getNextArg(); 322 5747 baseIntent = null; 323 5748 if (arg == null) { 324 5749 if (hasSelector) { 325 5750 // If a selector has been specified, and no arguments 326 5751 // have been supplied for the main Intent, then we can 327 5752 // assume it is ACTION_MAIN CATEGORY_LAUNCHER; we don't 328 5753 // need to have a component name specified yet, the 329 5754 // selector will take care of that. 330 5755 baseIntent = new Intent(Intent.ACTION_MAIN); 331 5756 baseIntent.addCategory(Intent.CATEGORY_LAUNCHER); 332 5757 } 333 5758 } else if (arg.indexOf(':') >= 0) { 334 5759 // The argument is a URI. Fully parse it, and use that result 335 5760 // to fill in any data not specified so far. 336 5761 baseIntent = Intent.parseUri(arg, Intent.URI_INTENT_SCHEME 337 5762 | Intent.URI_ANDROID_APP_SCHEME | Intent.URI_ALLOW_UNSAFE); 338 5763 } else if (arg.indexOf('/') >= 0) { 339 5764 // The argument is a component name. Build an Intent to launch 340 5765 // it. 341 5766 baseIntent = new Intent(Intent.ACTION_MAIN); 342 5767 baseIntent.addCategory(Intent.CATEGORY_LAUNCHER); 343 5768 baseIntent.setComponent(ComponentName.unflattenFromString(arg)); 344 5769 } else { 345 5770 // Assume the argument is a package name. 346 5771 baseIntent = new Intent(Intent.ACTION_MAIN); 347 5772 baseIntent.addCategory(Intent.CATEGORY_LAUNCHER); 348 5773 baseIntent.setPackage(arg); 349 5774 } 350 5775 if (baseIntent != null) { 351 5776 Bundle extras = intent.getExtras(); 352 5777 intent.replaceExtras((Bundle)null); 353 5778 Bundle uriExtras = baseIntent.getExtras(); 354 5779 baseIntent.replaceExtras((Bundle)null); 355 5780 if (intent.getAction() != null && baseIntent.getCategories() != null) { 356 5781 HashSet<String> cats = new HashSet<String>(baseIntent.getCategories()); 357 5782 for (String c : cats) { 358 5783 baseIntent.removeCategory(c); 359 5784 } 360 5785 } 361 5786 intent.fillIn(baseIntent, Intent.FILL_IN_COMPONENT | Intent.FILL_IN_SELECTOR); 362 5787 if (extras == null) { 363 5788 extras = uriExtras; 364 5789 } else if (uriExtras != null) { 365 5790 uriExtras.putAll(extras); 366 5791 extras = uriExtras; 367 5792 } 368 5793 intent.replaceExtras(extras); 369 5794 hasIntentInfo = true; 370 5795 } 371 5796 372 5797 if (!hasIntentInfo) throw new IllegalArgumentException("No intent supplied"); 373 5798 return intent; 374 5799 } 375 5800
printIntentArgsHelp打印命令的选项和参数帮助
1 5801 /** @hide */ 2 5802 public static void printIntentArgsHelp(PrintWriter pw, String prefix) { 3 5803 final String[] lines = new String[] { 4 5804 "<INTENT> specifications include these flags and arguments:", 5 5805 " [-a <ACTION>] [-d <DATA_URI>] [-t <MIME_TYPE>]", 6 5806 " [-c <CATEGORY> [-c <CATEGORY>] ...]", 7 5807 " [-e|--es <EXTRA_KEY> <EXTRA_STRING_VALUE> ...]", 8 5808 " [--esn <EXTRA_KEY> ...]", 9 5809 " [--ez <EXTRA_KEY> <EXTRA_BOOLEAN_VALUE> ...]", 10 5810 " [--ei <EXTRA_KEY> <EXTRA_INT_VALUE> ...]", 11 5811 " [--el <EXTRA_KEY> <EXTRA_LONG_VALUE> ...]", 12 5812 " [--ef <EXTRA_KEY> <EXTRA_FLOAT_VALUE> ...]", 13 5813 " [--eu <EXTRA_KEY> <EXTRA_URI_VALUE> ...]", 14 5814 " [--ecn <EXTRA_KEY> <EXTRA_COMPONENT_NAME_VALUE>]", 15 5815 " [--eia <EXTRA_KEY> <EXTRA_INT_VALUE>[,<EXTRA_INT_VALUE...]]", 16 5816 " (mutiple extras passed as Integer[])", 17 5817 " [--eial <EXTRA_KEY> <EXTRA_INT_VALUE>[,<EXTRA_INT_VALUE...]]", 18 5818 " (mutiple extras passed as List<Integer>)", 19 5819 " [--ela <EXTRA_KEY> <EXTRA_LONG_VALUE>[,<EXTRA_LONG_VALUE...]]", 20 5820 " (mutiple extras passed as Long[])", 21 5821 " [--elal <EXTRA_KEY> <EXTRA_LONG_VALUE>[,<EXTRA_LONG_VALUE...]]", 22 5822 " (mutiple extras passed as List<Long>)", 23 5823 " [--efa <EXTRA_KEY> <EXTRA_FLOAT_VALUE>[,<EXTRA_FLOAT_VALUE...]]", 24 5824 " (mutiple extras passed as Float[])", 25 5825 " [--efal <EXTRA_KEY> <EXTRA_FLOAT_VALUE>[,<EXTRA_FLOAT_VALUE...]]", 26 5826 " (mutiple extras passed as List<Float>)", 27 5827 " [--esa <EXTRA_KEY> <EXTRA_STRING_VALUE>[,<EXTRA_STRING_VALUE...]]", 28 5828 " (mutiple extras passed as String[]; to embed a comma into a string,", 29 5829 " escape it using \"\\,\")", 30 5830 " [--esal <EXTRA_KEY> <EXTRA_STRING_VALUE>[,<EXTRA_STRING_VALUE...]]", 31 5831 " (mutiple extras passed as List<String>; to embed a comma into a string,", 32 5832 " escape it using \"\\,\")", 33 5833 " [--f <FLAG>]", 34 5834 " [--grant-read-uri-permission] [--grant-write-uri-permission]", 35 5835 " [--grant-persistable-uri-permission] [--grant-prefix-uri-permission]", 36 5836 " [--debug-log-resolution] [--exclude-stopped-packages]", 37 5837 " [--include-stopped-packages]", 38 5838 " [--activity-brought-to-front] [--activity-clear-top]", 39 5839 " [--activity-clear-when-task-reset] [--activity-exclude-from-recents]", 40 5840 " [--activity-launched-from-history] [--activity-multiple-task]", 41 5841 " [--activity-no-animation] [--activity-no-history]", 42 5842 " [--activity-no-user-action] [--activity-previous-is-top]", 43 5843 " [--activity-reorder-to-front] [--activity-reset-task-if-needed]", 44 5844 " [--activity-single-top] [--activity-clear-task]", 45 5845 " [--activity-task-on-home]", 46 5846 " [--receiver-registered-only] [--receiver-replace-pending]", 47 5847 " [--receiver-foreground]", 48 5848 " [--selector]", 49 5849 " [<URI> | <PACKAGE> | <COMPONENT>]" 50 5850 }; 51 5851 for (String line : lines) { 52 5852 pw.print(prefix); 53 5853 pw.println(line); 54 5854 } 55 5855 } 56 5856
函数getAction返回action
1 5857 /** 2 5858 * Retrieve the general action to be performed, such as 3 5859 * {@link #ACTION_VIEW}. The action describes the general way the rest of 4 5860 * the information in the intent should be interpreted -- most importantly, 5 5861 * what to do with the data returned by {@link #getData}. 6 5862 * 7 5863 * @return The action of this intent or null if none is specified. 8 5864 * 9 5865 * @see #setAction 10 5866 */ 11 5867 public String getAction() { 12 5868 return mAction; 13 5869 }
getData返回data
1 5871 /** 2 5872 * Retrieve data this intent is operating on. This URI specifies the name 3 5873 * of the data; often it uses the content: scheme, specifying data in a 4 5874 * content provider. Other schemes may be handled by specific activities, 5 5875 * such as http: by the web browser. 6 5876 * 7 5877 * @return The URI of the data this intent is targeting or null. 8 5878 * 9 5879 * @see #getScheme 10 5880 * @see #setData 11 5881 */ 12 5882 public Uri getData() { 13 5883 return mData; 14 5884 }
getDataString把Uri类转换为string
1 5886 /** 2 5887 * The same as {@link #getData()}, but returns the URI as an encoded 3 5888 * String. 4 5889 */ 5 5890 public String getDataString() { 6 5891 return mData != null ? mData.toString() : null; 7 5892 }
getDataScheme返回协议名
1 5894 /** 2 5895 * Return the scheme portion of the intent's data. If the data is null or 3 5896 * does not include a scheme, null is returned. Otherwise, the scheme 4 5897 * prefix without the final ':' is returned, i.e. "http". 5 5898 * 6 5899 * <p>This is the same as calling getData().getScheme() (and checking for 7 5900 * null data). 8 5901 * 9 5902 * @return The scheme of this intent. 10 5903 * 11 5904 * @see #getData 12 5905 */ 13 5906 public String getScheme() { 14 5907 return mData != null ? mData.getScheme() : null; 15 5908 }
getType返回MIME type
1 5910 /** 2 5911 * Retrieve any explicit MIME type included in the intent. This is usually 3 5912 * null, as the type is determined by the intent data. 4 5913 * 5 5914 * @return If a type was manually set, it is returned; else null is 6 5915 * returned. 7 5916 * 8 5917 * @see #resolveType(ContentResolver) 9 5918 * @see #setType 10 5919 */ 11 5920 public String getType() { 12 5921 return mType; 13 5922 }
resolveType和resolveTypeIfNeeded会返回当前的MIME type，让ContentResolver根据mData来做
1 5924 /** 2 5925 * Return the MIME data type of this intent. If the type field is 3 5926 * explicitly set, that is simply returned. Otherwise, if the data is set, 4 5927 * the type of that data is returned. If neither fields are set, a null is 5 5928 * returned. 6 5929 * 7 5930 * @return The MIME type of this intent. 8 5931 * 9 5932 * @see #getType 10 5933 * @see #resolveType(ContentResolver) 11 5934 */ 12 5935 public String resolveType(Context context) { 13 5936 return resolveType(context.getContentResolver()); 14 5937 } 15 5938 16 5939 /** 17 5940 * Return the MIME data type of this intent. If the type field is 18 5941 * explicitly set, that is simply returned. Otherwise, if the data is set, 19 5942 * the type of that data is returned. If neither fields are set, a null is 20 5943 * returned. 21 5944 * 22 5945 * @param resolver A ContentResolver that can be used to determine the MIME 23 5946 * type of the intent's data. 24 5947 * 25 5948 * @return The MIME type of this intent. 26 5949 * 27 5950 * @see #getType 28 5951 * @see #resolveType(Context) 29 5952 */ 30 5953 public String resolveType(ContentResolver resolver) { 31 5954 if (mType != null) { 32 5955 return mType; 33 5956 } 34 5957 if (mData != null) { 35 5958 if ("content".equals(mData.getScheme())) { 36 5959 return resolver.getType(mData); 37 5960 } 38 5961 } 39 5962 return null; 40 5963 } 41 5964 42 5965 /** 43 5966 * Return the MIME data type of this intent, only if it will be needed for 44 5967 * intent resolution. This is not generally useful for application code; 45 5968 * it is used by the frameworks for communicating with back-end system 46 5969 * services. 47 5970 * 48 5971 * @param resolver A ContentResolver that can be used to determine the MIME 49 5972 * type of the intent's data. 50 5973 * 51 5974 * @return The MIME type of this intent, or null if it is unknown or not 52 5975 * needed. 53 5976 */ 54 5977 public String resolveTypeIfNeeded(ContentResolver resolver) { 55 5978 if (mComponent != null) { 56 5979 return mType; 57 5980 } 58 5981 return resolveType(resolver); 59 5982 }
hasCategory和getCategories判断是否包含某个category和返回categories
1 5984 /** 2 5985 * Check if a category exists in the intent. 3 5986 * 4 5987 * @param category The category to check. 5 5988 * 6 5989 * @return boolean True if the intent contains the category, else false. 7 5990 * 8 5991 * @see #getCategories 9 5992 * @see #addCategory 10 5993 */ 11 5994 public boolean hasCategory(String category) { 12 5995 return mCategories != null && mCategories.contains(category); 13 5996 } 14 5997 15 5998 /** 16 5999 * Return the set of all categories in the intent. If there are no categories, 17 6000 * returns NULL. 18 6001 * 19 6002 * @return The set of categories you can examine. Do not modify! 20 6003 * 21 6004 * @see #hasCategory 22 6005 * @see #addCategory 23 6006 */ 24 6007 public Set<String> getCategories() { 25 6008 return mCategories; 26 6009 }
getSelector获取mSelector
1 6011 /** 2 6012 * Return the specific selector associated with this Intent. If there is 3 6013 * none, returns null. See {@link #setSelector} for more information. 4 6014 * 5 6015 * @see #setSelector 6 6016 */ 7 6017 public Intent getSelector() { 8 6018 return mSelector; 9 6019 }
getClipData返回mClipData
1 6021 /** 2 6022 * Return the {@link ClipData} associated with this Intent. If there is 3 6023 * none, returns null. See {@link #setClipData} for more information. 4 6024 * 5 6025 * @see #setClipData 6 6026 */ 7 6027 public ClipData getClipData() { 8 6028 return mClipData; 9 6029 }
getContentUserHint返回mContentUserHint
1 6031 /** @hide */ 2 6032 public int getContentUserHint() { 3 6033 return mContentUserHint; 4 6034 }
setExtrasClassloader设置mExtras的ClassLoader
1 6036 /** 2 6037 * Sets the ClassLoader that will be used when unmarshalling 3 6038 * any Parcelable values from the extras of this Intent. 4 6039 * 5 6040 * @param loader a ClassLoader, or null to use the default loader 6 6041 * at the time of unmarshalling. 7 6042 */ 8 6043 public void setExtrasClassLoader(ClassLoader loader) { 9 6044 if (mExtras != null) { 10 6045 mExtras.setClassLoader(loader); 11 6046 } 12 6047 }
hasExtra和hasFileDescriptors调用Bundle的containsKey和hasFileDescriptros
1 6049 /** 2 6050 * Returns true if an extra value is associated with the given name. 3 6051 * @param name the extra's name 4 6052 * @return true if the given extra is present. 5 6053 */ 6 6054 public boolean hasExtra(String name) { 7 6055 return mExtras != null && mExtras.containsKey(name); 8 6056 } 9 6057 10 6058 /** 11 6059 * Returns true if the Intent's extras contain a parcelled file descriptor. 12 6060 * @return true if the Intent contains a parcelled file descriptor. 13 6061 */ 14 6062 public boolean hasFileDescriptors() { 15 6063 return mExtras != null && mExtras.hasFileDescriptors(); 16 6064 }
setAllowFds和setDefusable调用Bunde的setAllowFds和setDefusable
1 6066 /** {@hide} */ 2 6067 public void setAllowFds(boolean allowFds) { 3 6068 if (mExtras != null) { 4 6069 mExtras.setAllowFds(allowFds); 5 6070 } 6 6071 } 7 6072 8 6073 /** {@hide} */ 9 6074 public void setDefusable(boolean defusable) { 10 6075 if (mExtras != null) { 11 6076 mExtras.setDefusable(defusable); 12 6077 } 13 6078 } 14 6079
getExtra返回Object对象， 没找到返回参数里的默认值
1 6530 /** 2 6531 * Retrieve extended data from the intent. 3 6532 * 4 6533 * @param name The name of the desired item. 5 6534 * @param defaultValue The default value to return in case no item is 6 6535 * associated with the key 'name' 7 6536 * 8 6537 * @return the value of an item that previously added with putExtra() 9 6538 * or defaultValue if none was found. 10 6539 * 11 6540 * @see #putExtra 12 6541 * 13 6542 * @deprecated 14 6543 * @hide 15 6544 */ 16 6545 @Deprecated 17 6546 public Object getExtra(String name, Object defaultValue) { 18 6547 Object result = defaultValue; 19 6548 if (mExtras != null) { 20 6549 Object result2 = mExtras.get(name); 21 6550 if (result2 != null) { 22 6551 result = result2; 23 6552 } 24 6553 } 25 6554 26 6555 return result; 27 6556 }
还有一个默认值为NULL的版本
1 6080 /** 2 6081 * Retrieve extended data from the intent. 3 6082 * 4 6083 * @param name The name of the desired item. 5 6084 * 6 6085 * @return the value of an item that previously added with putExtra() 7 6086 * or null if none was found. 8 6087 * 9 6088 * @deprecated 10 6089 * @hide 11 6090 */ 12 6091 @Deprecated 13 6092 public Object getExtra(String name) { 14 6093 return getExtra(name, null); 15 6094 }
getBooleanExtra,getByteExtra,getShortExtra,getCharExtra,getIntExtra,getLongExtra,getFloatExtra,getDoubleExtra,getStringExtra,getCharSequenceExtra,getParcelableExtra,getParcelableArrayExtra,getParcelableArrayListExtra,getSeriableExtra,getIntegerArrayListExtra,getStringArrayListExtra,getCharSequenceArrayList,getBooleanArrayExtra,getByteArrayExtra,getShortArrayExtra,getIntArrayExtra,getLongArrayExtra,getFloatArrayExtra,getDoubleArrayExtra,getStrignArrayExtra,getCharSequenceArrayExtra,getBundleExtra,getIBinderExtra分别调用Bundle的相应方法
1 6096 /** 2 6097 * Retrieve extended data from the intent. 3 6098 * 4 6099 * @param name The name of the desired item. 5 6100 * @param defaultValue the value to be returned if no value of the desired 6 6101 * type is stored with the given name. 7 6102 * 8 6103 * @return the value of an item that previously added with putExtra() 9 6104 * or the default value if none was found. 10 6105 * 11 6106 * @see #putExtra(String, boolean) 12 6107 */ 13 6108 public boolean getBooleanExtra(String name, boolean defaultValue) { 14 6109 return mExtras == null ? defaultValue : 15 6110 mExtras.getBoolean(name, defaultValue); 16 6111 } 17 6112 18 6113 /** 19 6114 * Retrieve extended data from the intent. 20 6115 * 21 6116 * @param name The name of the desired item. 22 6117 * @param defaultValue the value to be returned if no value of the desired 23 6118 * type is stored with the given name. 24 6119 * 25 6120 * @return the value of an item that previously added with putExtra() 26 6121 * or the default value if none was found. 27 6122 * 28 6123 * @see #putExtra(String, byte) 29 6124 */ 30 6125 public byte getByteExtra(String name, byte defaultValue) { 31 6126 return mExtras == null ? defaultValue : 32 6127 mExtras.getByte(name, defaultValue); 33 6128 } 34 6129 35 6130 /** 36 6131 * Retrieve extended data from the intent. 37 6132 * 38 6133 * @param name The name of the desired item. 39 6134 * @param defaultValue the value to be returned if no value of the desired 40 6135 * type is stored with the given name. 41 6136 * 42 6137 * @return the value of an item that previously added with putExtra() 43 6138 * or the default value if none was found. 44 6139 * 45 6140 * @see #putExtra(String, short) 46 6141 */ 47 6142 public short getShortExtra(String name, short defaultValue) { 48 6143 return mExtras == null ? defaultValue : 49 6144 mExtras.getShort(name, defaultValue); 50 6145 } 51 6146 52 6147 /** 53 6148 * Retrieve extended data from the intent. 54 6149 * 55 6150 * @param name The name of the desired item. 56 6151 * @param defaultValue the value to be returned if no value of the desired 57 6152 * type is stored with the given name. 58 6153 * 59 6154 * @return the value of an item that previously added with putExtra() 60 6155 * or the default value if none was found. 61 6156 * 62 6157 * @see #putExtra(String, char) 63 6158 */ 64 6159 public char getCharExtra(String name, char defaultValue) { 65 6160 return mExtras == null ? defaultValue : 66 6161 mExtras.getChar(name, defaultValue); 67 6162 } 68 6163 69 6164 /** 70 6165 * Retrieve extended data from the intent. 71 6166 * 72 6167 * @param name The name of the desired item. 73 6168 * @param defaultValue the value to be returned if no value of the desired 74 6169 * type is stored with the given name. 75 6170 * 76 6171 * @return the value of an item that previously added with putExtra() 77 6172 * or the default value if none was found. 78 6173 * 79 6174 * @see #putExtra(String, int) 80 6175 */ 81 6176 public int getIntExtra(String name, int defaultValue) { 82 6177 return mExtras == null ? defaultValue : 83 6178 mExtras.getInt(name, defaultValue); 84 6179 } 85 6180 86 6181 /** 87 6182 * Retrieve extended data from the intent. 88 6183 * 89 6184 * @param name The name of the desired item. 90 6185 * @param defaultValue the value to be returned if no value of the desired 91 6186 * type is stored with the given name. 92 6187 * 93 6188 * @return the value of an item that previously added with putExtra() 94 6189 * or the default value if none was found. 95 6190 * 96 6191 * @see #putExtra(String, long) 97 6192 */ 98 6193 public long getLongExtra(String name, long defaultValue) { 99 6194 return mExtras == null ? defaultValue : 100 6195 mExtras.getLong(name, defaultValue); 101 6196 } 102 6197 103 6198 /** 104 6199 * Retrieve extended data from the intent. 105 6200 * 106 6201 * @param name The name of the desired item. 107 6202 * @param defaultValue the value to be returned if no value of the desired 108 6203 * type is stored with the given name. 109 6204 * 110 6205 * @return the value of an item that previously added with putExtra(), 111 6206 * or the default value if no such item is present 112 6207 * 113 6208 * @see #putExtra(String, float) 114 6209 */ 115 6210 public float getFloatExtra(String name, float defaultValue) { 116 6211 return mExtras == null ? defaultValue : 117 6212 mExtras.getFloat(name, defaultValue); 118 6213 } 119 6214 120 6215 /** 121 6216 * Retrieve extended data from the intent. 122 6217 * 123 6218 * @param name The name of the desired item. 124 6219 * @param defaultValue the value to be returned if no value of the desired 125 6220 * type is stored with the given name. 126 6221 * 127 6222 * @return the value of an item that previously added with putExtra() 128 6223 * or the default value if none was found. 129 6224 * 130 6225 * @see #putExtra(String, double) 131 6226 */ 132 6227 public double getDoubleExtra(String name, double defaultValue) { 133 6228 return mExtras == null ? defaultValue : 134 6229 mExtras.getDouble(name, defaultValue); 135 6230 } 136 6231 137 6232 /** 138 6233 * Retrieve extended data from the intent. 139 6234 * 140 6235 * @param name The name of the desired item. 141 6236 * 142 6237 * @return the value of an item that previously added with putExtra() 143 6238 * or null if no String value was found. 144 6239 * 145 6240 * @see #putExtra(String, String) 146 6241 */ 147 6242 public String getStringExtra(String name) { 148 6243 return mExtras == null ? null : mExtras.getString(name); 149 6244 } 150 6245 151 6246 /** 152 6247 * Retrieve extended data from the intent. 153 6248 * 154 6249 * @param name The name of the desired item. 155 6250 * 156 6251 * @return the value of an item that previously added with putExtra() 157 6252 * or null if no CharSequence value was found. 158 6253 * 159 6254 * @see #putExtra(String, CharSequence) 160 6255 */ 161 6256 public CharSequence getCharSequenceExtra(String name) { 162 6257 return mExtras == null ? null : mExtras.getCharSequence(name); 163 6258 } 164 6259 165 6260 /** 166 6261 * Retrieve extended data from the intent. 167 6262 * 168 6263 * @param name The name of the desired item. 169 6264 * 170 6265 * @return the value of an item that previously added with putExtra() 171 6266 * or null if no Parcelable value was found. 172 6267 * 173 6268 * @see #putExtra(String, Parcelable) 174 6269 */ 175 6270 public <T extends Parcelable> T getParcelableExtra(String name) { 176 6271 return mExtras == null ? null : mExtras.<T>getParcelable(name); 177 6272 } 178 6273 179 6274 /** 180 6275 * Retrieve extended data from the intent. 181 6276 * 182 6277 * @param name The name of the desired item. 183 6278 * 184 6279 * @return the value of an item that previously added with putExtra() 185 6280 * or null if no Parcelable[] value was found. 186 6281 * 187 6282 * @see #putExtra(String, Parcelable[]) 188 6283 */ 189 6284 public Parcelable[] getParcelableArrayExtra(String name) { 190 6285 return mExtras == null ? null : mExtras.getParcelableArray(name); 191 6286 } 192 6287 193 6288 /** 194 6289 * Retrieve extended data from the intent. 195 6290 * 196 6291 * @param name The name of the desired item. 197 6292 * 198 6293 * @return the value of an item that previously added with putExtra() 199 6294 * or null if no ArrayList<Parcelable> value was found. 200 6295 * 201 6296 * @see #putParcelableArrayListExtra(String, ArrayList) 202 6297 */ 203 6298 public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) { 204 6299 return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name); 205 6300 } 206 6301 207 6302 /** 208 6303 * Retrieve extended data from the intent. 209 6304 * 210 6305 * @param name The name of the desired item. 211 6306 * 212 6307 * @return the value of an item that previously added with putExtra() 213 6308 * or null if no Serializable value was found. 214 6309 * 215 6310 * @see #putExtra(String, Serializable) 216 6311 */ 217 6312 public Serializable getSerializableExtra(String name) { 218 6313 return mExtras == null ? null : mExtras.getSerializable(name); 219 6314 } 220 6315 221 6316 /** 222 6317 * Retrieve extended data from the intent. 223 6318 * 224 6319 * @param name The name of the desired item. 225 6320 * 226 6321 * @return the value of an item that previously added with putExtra() 227 6322 * or null if no ArrayList<Integer> value was found. 228 6323 * 229 6324 * @see #putIntegerArrayListExtra(String, ArrayList) 230 6325 */ 231 6326 public ArrayList<Integer> getIntegerArrayListExtra(String name) { 232 6327 return mExtras == null ? null : mExtras.getIntegerArrayList(name); 233 6328 } 234 6329 235 6330 /** 236 6331 * Retrieve extended data from the intent. 237 6332 * 238 6333 * @param name The name of the desired item. 239 6334 * 240 6335 * @return the value of an item that previously added with putExtra() 241 6336 * or null if no ArrayList<String> value was found. 242 6337 * 243 6338 * @see #putStringArrayListExtra(String, ArrayList) 244 6339 */ 245 6340 public ArrayList<String> getStringArrayListExtra(String name) { 246 6341 return mExtras == null ? null : mExtras.getStringArrayList(name); 247 6342 } 248 6343 249 6344 /** 250 6345 * Retrieve extended data from the intent. 251 6346 * 252 6347 * @param name The name of the desired item. 253 6348 * 254 6349 * @return the value of an item that previously added with putExtra() 255 6350 * or null if no ArrayList<CharSequence> value was found. 256 6351 * 257 6352 * @see #putCharSequenceArrayListExtra(String, ArrayList) 258 6353 */ 259 6354 public ArrayList<CharSequence> getCharSequenceArrayListExtra(String name) { 260 6355 return mExtras == null ? null : mExtras.getCharSequenceArrayList(name); 261 6356 } 262 6357 263 6358 /** 264 6359 * Retrieve extended data from the intent. 265 6360 * 266 6361 * @param name The name of the desired item. 267 6362 * 268 6363 * @return the value of an item that previously added with putExtra() 269 6364 * or null if no boolean array value was found. 270 6365 * 271 6366 * @see #putExtra(String, boolean[]) 272 6367 */ 273 6368 public boolean[] getBooleanArrayExtra(String name) { 274 6369 return mExtras == null ? null : mExtras.getBooleanArray(name); 275 6370 } 276 6371 277 6372 /** 278 6373 * Retrieve extended data from the intent. 279 6374 * 280 6375 * @param name The name of the desired item. 281 6376 * 282 6377 * @return the value of an item that previously added with putExtra() 283 6378 * or null if no byte array value was found. 284 6379 * 285 6380 * @see #putExtra(String, byte[]) 286 6381 */ 287 6382 public byte[] getByteArrayExtra(String name) { 288 6383 return mExtras == null ? null : mExtras.getByteArray(name); 289 6384 } 290 6385 291 6386 /** 292 6387 * Retrieve extended data from the intent. 293 6388 * 294 6389 * @param name The name of the desired item. 295 6390 * 296 6391 * @return the value of an item that previously added with putExtra() 297 6392 * or null if no short array value was found. 298 6393 * 299 6394 * @see #putExtra(String, short[]) 300 6395 */ 301 6396 public short[] getShortArrayExtra(String name) { 302 6397 return mExtras == null ? null : mExtras.getShortArray(name); 303 6398 } 304 6399 305 6400 /** 306 6401 * Retrieve extended data from the intent. 307 6402 * 308 6403 * @param name The name of the desired item. 309 6404 * 310 6405 * @return the value of an item that previously added with putExtra() 311 6406 * or null if no char array value was found. 312 6407 * 313 6408 * @see #putExtra(String, char[]) 314 6409 */ 315 6410 public char[] getCharArrayExtra(String name) { 316 6411 return mExtras == null ? null : mExtras.getCharArray(name); 317 6412 } 318 6413 319 6414 /** 320 6415 * Retrieve extended data from the intent. 321 6416 * 322 6417 * @param name The name of the desired item. 323 6418 * 324 6419 * @return the value of an item that previously added with putExtra() 325 6420 * or null if no int array value was found. 326 6421 * 327 6422 * @see #putExtra(String, int[]) 328 6423 */ 329 6424 public int[] getIntArrayExtra(String name) { 330 6425 return mExtras == null ? null : mExtras.getIntArray(name); 331 6426 } 332 6427 333 6428 /** 334 6429 * Retrieve extended data from the intent. 335 6430 * 336 6431 * @param name The name of the desired item. 337 6432 * 338 6433 * @return the value of an item that previously added with putExtra() 339 6434 * or null if no long array value was found. 340 6435 * 341 6436 * @see #putExtra(String, long[]) 342 6437 */ 343 6438 public long[] getLongArrayExtra(String name) { 344 6439 return mExtras == null ? null : mExtras.getLongArray(name); 345 6440 } 346 6441 347 6442 /** 348 6443 * Retrieve extended data from the intent. 349 6444 * 350 6445 * @param name The name of the desired item. 351 6446 * 352 6447 * @return the value of an item that previously added with putExtra() 353 6448 * or null if no float array value was found. 354 6449 * 355 6450 * @see #putExtra(String, float[]) 356 6451 */ 357 6452 public float[] getFloatArrayExtra(String name) { 358 6453 return mExtras == null ? null : mExtras.getFloatArray(name); 359 6454 } 360 6455 361 6456 /** 362 6457 * Retrieve extended data from the intent. 363 6458 * 364 6459 * @param name The name of the desired item. 365 6460 * 366 6461 * @return the value of an item that previously added with putExtra() 367 6462 * or null if no double array value was found. 368 6463 * 369 6464 * @see #putExtra(String, double[]) 370 6465 */ 371 6466 public double[] getDoubleArrayExtra(String name) { 372 6467 return mExtras == null ? null : mExtras.getDoubleArray(name); 373 6468 } 374 6469 375 6470 /** 376 6471 * Retrieve extended data from the intent. 377 6472 * 378 6473 * @param name The name of the desired item. 379 6474 * 380 6475 * @return the value of an item that previously added with putExtra() 381 6476 * or null if no String array value was found. 382 6477 * 383 6478 * @see #putExtra(String, String[]) 384 6479 */ 385 6480 public String[] getStringArrayExtra(String name) { 386 6481 return mExtras == null ? null : mExtras.getStringArray(name); 387 6482 } 388 6483 389 6484 /** 390 6485 * Retrieve extended data from the intent. 391 6486 * 392 6487 * @param name The name of the desired item. 393 6488 * 394 6489 * @return the value of an item that previously added with putExtra() 395 6490 * or null if no CharSequence array value was found. 396 6491 * 397 6492 * @see #putExtra(String, CharSequence[]) 398 6493 */ 399 6494 public CharSequence[] getCharSequenceArrayExtra(String name) { 400 6495 return mExtras == null ? null : mExtras.getCharSequenceArray(name); 401 6496 } 402 6497 403 6498 /** 404 6499 * Retrieve extended data from the intent. 405 6500 * 406 6501 * @param name The name of the desired item. 407 6502 * 408 6503 * @return the value of an item that previously added with putExtra() 409 6504 * or null if no Bundle value was found. 410 6505 * 411 6506 * @see #putExtra(String, Bundle) 412 6507 */ 413 6508 public Bundle getBundleExtra(String name) { 414 6509 return mExtras == null ? null : mExtras.getBundle(name); 415 6510 } 416 6511 417 6512 /** 418 6513 * Retrieve extended data from the intent. 419 6514 * 420 6515 * @param name The name of the desired item. 421 6516 * 422 6517 * @return the value of an item that previously added with putExtra() 423 6518 * or null if no IBinder value was found. 424 6519 * 425 6520 * @see #putExtra(String, IBinder) 426 6521 * 427 6522 * @deprecated 428 6523 * @hide 429 6524 */ 430 6525 @Deprecated 431 6526 public IBinder getIBinderExtra(String name) { 432 6527 return mExtras == null ? null : mExtras.getIBinder(name); 433 6528 } 434 6529
getExtras copy一个新的mExtras
1 6558 /** 2 6559 * Retrieves a map of extended data from the intent. 3 6560 * 4 6561 * @return the map of all extras previously added with putExtra(), 5 6562 * or null if none have been added. 6 6563 */ 7 6564 public Bundle getExtras() { 8 6565 return (mExtras != null) 9 6566 ? new Bundle(mExtras) 10 6567 : null; 11 6568 } 12 6569
removeUnsafeExtras会只保留基本类型
1 6570 /** 2 6571 * Filter extras to only basic types. 3 6572 * @hide 4 6573 */ 5 6574 public void removeUnsafeExtras() { 6 6575 if (mExtras != null) { 7 6576 mExtras = mExtras.filterValues(); 8 6577 } 9 6578 }
getFlags获取当前的flag
1 6580 /** 2 6581 * Retrieve any special flags associated with this intent. You will 3 6582 * normally just set them with {@link #setFlags} and let the system 4 6583 * take the appropriate action with them. 5 6584 * 6 6585 * @return int The currently set flags. 7 6586 * 8 6587 * @see #setFlags 9 6588 */ 10 6589 public int getFlags() { 11 6590 return mFlags; 12 6591 }
isExcludingStopped看看相应的flag是否为FLAG_EXCLUDE_STOPPED_PACKAGES。
1 6593 /** @hide */ 2 6594 public boolean isExcludingStopped() { 3 6595 return (mFlags&(FLAG_EXCLUDE_STOPPED_PACKAGES|FLAG_INCLUDE_STOPPED_PACKAGES)) 4 6596 == FLAG_EXCLUDE_STOPPED_PACKAGES; 5 6597 }
getPackage,getComponent,getSourceBounds返回相应的私有变量
1 6599 /** 2 6600 * Retrieve the application package name this Intent is limited to. When 3 6601 * resolving an Intent, if non-null this limits the resolution to only 4 6602 * components in the given application package. 5 6603 * 6 6604 * @return The name of the application package for the Intent. 7 6605 * 8 6606 * @see #resolveActivity 9 6607 * @see #setPackage 10 6608 */ 11 6609 public String getPackage() { 12 6610 return mPackage; 13 6611 } 14 6612 15 6613 /** 16 6614 * Retrieve the concrete component associated with the intent. When receiving 17 6615 * an intent, this is the component that was found to best handle it (that is, 18 6616 * yourself) and will always be non-null; in all other cases it will be 19 6617 * null unless explicitly set. 20 6618 * 21 6619 * @return The name of the application component to handle the intent. 22 6620 * 23 6621 * @see #resolveActivity 24 6622 * @see #setComponent 25 6623 */ 26 6624 public ComponentName getComponent() { 27 6625 return mComponent; 28 6626 } 29 6627 30 6628 /** 31 6629 * Get the bounds of the sender of this intent, in screen coordinates. This can be 32 6630 * used as a hint to the receiver for animations and the like. Null means that there 33 6631 * is no source bounds. 34 6632 */ 35 6633 public Rect getSourceBounds() { 36 6634 return mSourceBounds; 37 6635 } 38 6636
resolveActivity返回mComponent或者通过PackageManager返回相应组件
1 6637 /** 2 6638 * Return the Activity component that should be used to handle this intent. 3 6639 * The appropriate component is determined based on the information in the 4 6640 * intent, evaluated as follows: 5 6641 * 6 6642 * <p>If {@link #getComponent} returns an explicit class, that is returned 7 6643 * without any further consideration. 8 6644 * 9 6645 * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent 10 6646 * category to be considered. 11 6647 * 12 6648 * <p>If {@link #getAction} is non-NULL, the activity must handle this 13 6649 * action. 14 6650 * 15 6651 * <p>If {@link #resolveType} returns non-NULL, the activity must handle 16 6652 * this type. 17 6653 * 18 6654 * <p>If {@link #addCategory} has added any categories, the activity must 19 6655 * handle ALL of the categories specified. 20 6656 * 21 6657 * <p>If {@link #getPackage} is non-NULL, only activity components in 22 6658 * that application package will be considered. 23 6659 * 24 6660 * <p>If there are no activities that satisfy all of these conditions, a 25 6661 * null string is returned. 26 6662 * 27 6663 * <p>If multiple activities are found to satisfy the intent, the one with 28 6664 * the highest priority will be used. If there are multiple activities 29 6665 * with the same priority, the system will either pick the best activity 30 6666 * based on user preference, or resolve to a system class that will allow 31 6667 * the user to pick an activity and forward from there. 32 6668 * 33 6669 * <p>This method is implemented simply by calling 34 6670 * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter 35 6671 * true.</p> 36 6672 * <p> This API is called for you as part of starting an activity from an 37 6673 * intent. You do not normally need to call it yourself.</p> 38 6674 * 39 6675 * @param pm The package manager with which to resolve the Intent. 40 6676 * 41 6677 * @return Name of the component implementing an activity that can 42 6678 * display the intent. 43 6679 * 44 6680 * @see #setComponent 45 6681 * @see #getComponent 46 6682 * @see #resolveActivityInfo 47 6683 */ 48 6684 public ComponentName resolveActivity(PackageManager pm) { 49 6685 if (mComponent != null) { 50 6686 return mComponent; 51 6687 } 52 6688 53 6689 ResolveInfo info = pm.resolveActivity( 54 6690 this, PackageManager.MATCH_DEFAULT_ONLY); 55 6691 if (info != null) { 56 6692 return new ComponentName( 57 6693 info.activityInfo.applicationInfo.packageName, 58 6694 info.activityInfo.name); 59 6695 } 60 6696 61 6697 return null; 62 6698 }
resolveActivityInfo通过pm获取ActivityInfo
1 6700 /** 2 6701 * Resolve the Intent into an {@link ActivityInfo} 3 6702 * describing the activity that should execute the intent. Resolution 4 6703 * follows the same rules as described for {@link #resolveActivity}, but 5 6704 * you get back the completely information about the resolved activity 6 6705 * instead of just its class name. 7 6706 * 8 6707 * @param pm The package manager with which to resolve the Intent. 9 6708 * @param flags Addition information to retrieve as per 10 6709 * {@link PackageManager#getActivityInfo(ComponentName, int) 11 6710 * PackageManager.getActivityInfo()}. 12 6711 * 13 6712 * @return PackageManager.ActivityInfo 14 6713 * 15 6714 * @see #resolveActivity 16 6715 */ 17 6716 public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) { 18 6717 ActivityInfo ai = null; 19 6718 if (mComponent != null) { 20 6719 try { 21 6720 ai = pm.getActivityInfo(mComponent, flags); 22 6721 } catch (PackageManager.NameNotFoundException e) { 23 6722 // ignore 24 6723 } 25 6724 } else { 26 6725 ResolveInfo info = pm.resolveActivity( 27 6726 this, PackageManager.MATCH_DEFAULT_ONLY | flags); 28 6727 if (info != null) { 29 6728 ai = info.activityInfo; 30 6729 } 31 6730 } 32 6731 33 6732 return ai; 34 6733 }
resolveSystemService通过pm的queryIntentService找到Intent匹配的servcie，如果有多个匹配，直接抛异常
1 6735 /** 2 6736 * Special function for use by the system to resolve service 3 6737 * intents to system apps. Throws an exception if there are 4 6738 * multiple potential matches to the Intent. Returns null if 5 6739 * there are no matches. 6 6740 * @hide 7 6741 */ 8 6742 public ComponentName resolveSystemService(PackageManager pm, int flags) { 9 6743 if (mComponent != null) { 10 6744 return mComponent; 11 6745 } 12 6746 13 6747 List<ResolveInfo> results = pm.queryIntentServices(this, flags); 14 6748 if (results == null) { 15 6749 return null; 16 6750 } 17 6751 ComponentName comp = null; 18 6752 for (int i=0; i<results.size(); i++) { 19 6753 ResolveInfo ri = results.get(i); 20 6754 if ((ri.serviceInfo.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) == 0) { 21 6755 continue; 22 6756 } 23 6757 ComponentName foundComp = new ComponentName(ri.serviceInfo.applicationInfo.packageName, 24 6758 ri.serviceInfo.name); 25 6759 if (comp != null) { 26 6760 throw new IllegalStateException("Multiple system services handle " + this 27 6761 + ": " + comp + ", " + foundComp); 28 6762 } 29 6763 comp = foundComp; 30 6764 } 31 6765 return comp; 32 6766 } 33 6767
setAction设置action，mAction是String.intern获取常量池里的引用这样就不用动态构建了，加快处理速度
1 6768 /** 2 6769 * Set the general action to be performed. 3 6770 * 4 6771 * @param action An action name, such as ACTION_VIEW. Application-specific 5 6772 * actions should be prefixed with the vendor's package name. 6 6773 * 7 6774 * @return Returns the same Intent object, for chaining multiple calls 8 6775 * into a single statement. 9 6776 * 10 6777 * @see #getAction 11 6778 */ 12 6779 public Intent setAction(String action) { 13 6780 mAction = action != null ? action.intern() : null; 14 6781 return this; 15 6782 }
setData,setType一系列函数会在设置data或者type的时候清除另一个，或者先将其转换为小写
1 6784 /** 2 6785 * Set the data this intent is operating on. This method automatically 3 6786 * clears any type that was previously set by {@link #setType} or 4 6787 * {@link #setTypeAndNormalize}. 5 6788 * 6 6789 * <p><em>Note: scheme matching in the Android framework is 7 6790 * case-sensitive, unlike the formal RFC. As a result, 8 6791 * you should always write your Uri with a lower case scheme, 9 6792 * or use {@link Uri#normalizeScheme} or 10 6793 * {@link #setDataAndNormalize} 11 6794 * to ensure that the scheme is converted to lower case.</em> 12 6795 * 13 6796 * @param data The Uri of the data this intent is now targeting. 14 6797 * 15 6798 * @return Returns the same Intent object, for chaining multiple calls 16 6799 * into a single statement. 17 6800 * 18 6801 * @see #getData 19 6802 * @see #setDataAndNormalize 20 6803 * @see android.net.Uri#normalizeScheme() 21 6804 */ 22 6805 public Intent setData(Uri data) { 23 6806 mData = data; 24 6807 mType = null; 25 6808 return this; 26 6809 } 27 6810 28 6811 /** 29 6812 * Normalize and set the data this intent is operating on. 30 6813 * 31 6814 * <p>This method automatically clears any type that was 32 6815 * previously set (for example, by {@link #setType}). 33 6816 * 34 6817 * <p>The data Uri is normalized using 35 6818 * {@link android.net.Uri#normalizeScheme} before it is set, 36 6819 * so really this is just a convenience method for 37 6820 * <pre> 38 6821 * setData(data.normalize()) 39 6822 * </pre> 40 6823 * 41 6824 * @param data The Uri of the data this intent is now targeting. 42 6825 * 43 6826 * @return Returns the same Intent object, for chaining multiple calls 44 6827 * into a single statement. 45 6828 * 46 6829 * @see #getData 47 6830 * @see #setType 48 6831 * @see android.net.Uri#normalizeScheme 49 6832 */ 50 6833 public Intent setDataAndNormalize(Uri data) { 51 6834 return setData(data.normalizeScheme()); 52 6835 } 53 6836 54 6837 /** 55 6838 * Set an explicit MIME data type. 56 6839 * 57 6840 * <p>This is used to create intents that only specify a type and not data, 58 6841 * for example to indicate the type of data to return. 59 6842 * 60 6843 * <p>This method automatically clears any data that was 61 6844 * previously set (for example by {@link #setData}). 62 6845 * 63 6846 * <p><em>Note: MIME type matching in the Android framework is 64 6847 * case-sensitive, unlike formal RFC MIME types. As a result, 65 6848 * you should always write your MIME types with lower case letters, 66 6849 * or use {@link #normalizeMimeType} or {@link #setTypeAndNormalize} 67 6850 * to ensure that it is converted to lower case.</em> 68 6851 * 69 6852 * @param type The MIME type of the data being handled by this intent. 70 6853 * 71 6854 * @return Returns the same Intent object, for chaining multiple calls 72 6855 * into a single statement. 73 6856 * 74 6857 * @see #getType 75 6858 * @see #setTypeAndNormalize 76 6859 * @see #setDataAndType 77 6860 * @see #normalizeMimeType 78 6861 */ 79 6862 public Intent setType(String type) { 80 6863 mData = null; 81 6864 mType = type; 82 6865 return this; 83 6866 } 84 6867 85 6868 /** 86 6869 * Normalize and set an explicit MIME data type. 87 6870 * 88 6871 * <p>This is used to create intents that only specify a type and not data, 89 6872 * for example to indicate the type of data to return. 90 6873 * 91 6874 * <p>This method automatically clears any data that was 92 6875 * previously set (for example by {@link #setData}). 93 6876 * 94 6877 * <p>The MIME type is normalized using 95 6878 * {@link #normalizeMimeType} before it is set, 96 6879 * so really this is just a convenience method for 97 6880 * <pre> 98 6881 * setType(Intent.normalizeMimeType(type)) 99 6882 * </pre> 100 6883 * 101 6884 * @param type The MIME type of the data being handled by this intent. 102 6885 * 103 6886 * @return Returns the same Intent object, for chaining multiple calls 104 6887 * into a single statement. 105 6888 * 106 6889 * @see #getType 107 6890 * @see #setData 108 6891 * @see #normalizeMimeType 109 6892 */ 110 6893 public Intent setTypeAndNormalize(String type) { 111 6894 return setType(normalizeMimeType(type)); 112 6895 } 113 6896 114 6897 /** 115 6898 * (Usually optional) Set the data for the intent along with an explicit 116 6899 * MIME data type. This method should very rarely be used -- it allows you 117 6900 * to override the MIME type that would ordinarily be inferred from the 118 6901 * data with your own type given here. 119 6902 * 120 6903 * <p><em>Note: MIME type and Uri scheme matching in the 121 6904 * Android framework is case-sensitive, unlike the formal RFC definitions. 122 6905 * As a result, you should always write these elements with lower case letters, 123 6906 * or use {@link #normalizeMimeType} or {@link android.net.Uri#normalizeScheme} or 124 6907 * {@link #setDataAndTypeAndNormalize} 125 6908 * to ensure that they are converted to lower case.</em> 126 6909 * 127 6910 * @param data The Uri of the data this intent is now targeting. 128 6911 * @param type The MIME type of the data being handled by this intent. 129 6912 * 130 6913 * @return Returns the same Intent object, for chaining multiple calls 131 6914 * into a single statement. 132 6915 * 133 6916 * @see #setType 134 6917 * @see #setData 135 6918 * @see #normalizeMimeType 136 6919 * @see android.net.Uri#normalizeScheme 137 6920 * @see #setDataAndTypeAndNormalize 138 6921 */ 139 6922 public Intent setDataAndType(Uri data, String type) { 140 6923 mData = data; 141 6924 mType = type; 142 6925 return this; 143 6926 } 144 6927 145 6928 /** 146 6929 * (Usually optional) Normalize and set both the data Uri and an explicit 147 6930 * MIME data type. This method should very rarely be used -- it allows you 148 6931 * to override the MIME type that would ordinarily be inferred from the 149 6932 * data with your own type given here. 150 6933 * 151 6934 * <p>The data Uri and the MIME type are normalize using 152 6935 * {@link android.net.Uri#normalizeScheme} and {@link #normalizeMimeType} 153 6936 * before they are set, so really this is just a convenience method for 154 6937 * <pre> 155 6938 * setDataAndType(data.normalize(), Intent.normalizeMimeType(type)) 156 6939 * </pre> 157 6940 * 158 6941 * @param data The Uri of the data this intent is now targeting. 159 6942 * @param type The MIME type of the data being handled by this intent. 160 6943 * 161 6944 * @return Returns the same Intent object, for chaining multiple calls 162 6945 * into a single statement. 163 6946 * 164 6947 * @see #setType 165 6948 * @see #setData 166 6949 * @see #setDataAndType 167 6950 * @see #normalizeMimeType 168 6951 * @see android.net.Uri#normalizeScheme 169 6952 */ 170 6953 public Intent setDataAndTypeAndNormalize(Uri data, String type) { 171 6954 return setDataAndType(data.normalizeScheme(), normalizeMimeType(type)); 172 6955 }
addCategory和removeCategory增加和删除Category
1 6957 /** 2 6958 * Add a new category to the intent. Categories provide additional detail 3 6959 * about the action the intent performs. When resolving an intent, only 4 6960 * activities that provide <em>all</em> of the requested categories will be 5 6961 * used. 6 6962 * 7 6963 * @param category The desired category. This can be either one of the 8 6964 * predefined Intent categories, or a custom category in your own 9 6965 * namespace. 10 6966 * 11 6967 * @return Returns the same Intent object, for chaining multiple calls 12 6968 * into a single statement. 13 6969 * 14 6970 * @see #hasCategory 15 6971 * @see #removeCategory 16 6972 */ 17 6973 public Intent addCategory(String category) { 18 6974 if (mCategories == null) { 19 6975 mCategories = new ArraySet<String>(); 20 6976 } 21 6977 mCategories.add(category.intern()); 22 6978 return this; 23 6979 } 24 6980 25 6981 /** 26 6982 * Remove a category from an intent. 27 6983 * 28 6984 * @param category The category to remove. 29 6985 * 30 6986 * @see #addCategory 31 6987 */ 32 6988 public void removeCategory(String category) { 33 6989 if (mCategories != null) { 34 6990 mCategories.remove(category); 35 6991 if (mCategories.size() == 0) { 36 6992 mCategories = null; 37 6993 } 38 6994 } 39 6995 } 40 6996
setSelector设置一个额外的Intent，决定哪个组件处理它
1 6997 /** 2 6998 * Set a selector for this Intent. This is a modification to the kinds of 3 6999 * things the Intent will match. If the selector is set, it will be used 4 7000 * when trying to find entities that can handle the Intent, instead of the 5 7001 * main contents of the Intent. This allows you build an Intent containing 6 7002 * a generic protocol while targeting it more specifically. 7 7003 * 8 7004 * <p>An example of where this may be used is with things like 9 7005 * {@link #CATEGORY_APP_BROWSER}. This category allows you to build an 10 7006 * Intent that will launch the Browser application. However, the correct 11 7007 * main entry point of an application is actually {@link #ACTION_MAIN} 12 7008 * {@link #CATEGORY_LAUNCHER} with {@link #setComponent(ComponentName)} 13 7009 * used to specify the actual Activity to launch. If you launch the browser 14 7010 * with something different, undesired behavior may happen if the user has 15 7011 * previously or later launches it the normal way, since they do not match. 16 7012 * Instead, you can build an Intent with the MAIN action (but no ComponentName 17 7013 * yet specified) and set a selector with {@link #ACTION_MAIN} and 18 7014 * {@link #CATEGORY_APP_BROWSER} to point it specifically to the browser activity. 19 7015 * 20 7016 * <p>Setting a selector does not impact the behavior of 21 7017 * {@link #filterEquals(Intent)} and {@link #filterHashCode()}. This is part of the 22 7018 * desired behavior of a selector -- it does not impact the base meaning 23 7019 * of the Intent, just what kinds of things will be matched against it 24 7020 * when determining who can handle it.</p> 25 7021 * 26 7022 * <p>You can not use both a selector and {@link #setPackage(String)} on 27 7023 * the same base Intent.</p> 28 7024 * 29 7025 * @param selector The desired selector Intent; set to null to not use 30 7026 * a special selector. 31 7027 */ 32 7028 public void setSelector(Intent selector) { 33 7029 if (selector == this) { 34 7030 throw new IllegalArgumentException( 35 7031 "Intent being set as a selector of itself"); 36 7032 } 37 7033 if (selector != null && mPackage != null) { 38 7034 throw new IllegalArgumentException( 39 7035 "Can't set selector when package name is already set"); 40 7036 } 41 7037 mSelector = selector; 42 7038 }
setClipData设置clipData
1 7040 /** 2 7041 * Set a {@link ClipData} associated with this Intent. This replaces any 3 7042 * previously set ClipData. 4 7043 * 5 7044 * <p>The ClipData in an intent is not used for Intent matching or other 6 7045 * such operations. Semantically it is like extras, used to transmit 7 7046 * additional data with the Intent. The main feature of using this over 8 7047 * the extras for data is that {@link #FLAG_GRANT_READ_URI_PERMISSION} 9 7048 * and {@link #FLAG_GRANT_WRITE_URI_PERMISSION} will operate on any URI 10 7049 * items included in the clip data. This is useful, in particular, if 11 7050 * you want to transmit an Intent containing multiple <code>content:</code> 12 7051 * URIs for which the recipient may not have global permission to access the 13 7052 * content provider. 14 7053 * 15 7054 * <p>If the ClipData contains items that are themselves Intents, any 16 7055 * grant flags in those Intents will be ignored. Only the top-level flags 17 7056 * of the main Intent are respected, and will be applied to all Uri or 18 7057 * Intent items in the clip (or sub-items of the clip). 19 7058 * 20 7059 * <p>The MIME type, label, and icon in the ClipData object are not 21 7060 * directly used by Intent. Applications should generally rely on the 22 7061 * MIME type of the Intent itself, not what it may find in the ClipData. 23 7062 * A common practice is to construct a ClipData for use with an Intent 24 7063 * with a MIME type of "*/*". 25 7064 * 26 7065 * @param clip The new clip to set. May be null to clear the current clip. 27 7066 */ 28 7067 public void setClipData(ClipData clip) { 29 7068 mClipData = clip; 30 7069 }
prepareToLeaveUser切换userId
1 7071 /** 2 7072 * This is NOT a secure mechanism to identify the user who sent the intent. 3 7073 * When the intent is sent to a different user, it is used to fix uris by adding the userId 4 7074 * who sent the intent. 5 7075 * @hide 6 7076 */ 7 7077 public void prepareToLeaveUser(int userId) { 8 7078 // If mContentUserHint is not UserHandle.USER_CURRENT, the intent has already left a user. 9 7079 // We want mContentUserHint to refer to the original user, so don't do anything. 10 7080 if (mContentUserHint == UserHandle.USER_CURRENT) { 11 7081 mContentUserHint = userId; 12 7082 } 13 7083 }
putExtra的重载函数，根据参数类型不同调用调用Bundle的不同函数放不同类型
1 7085 /** 2 7086 * Add extended data to the intent. The name must include a package 3 7087 * prefix, for example the app com.android.contacts would use names 4 7088 * like "com.android.contacts.ShowAll". 5 7089 * 6 7090 * @param name The name of the extra data, with package prefix. 7 7091 * @param value The boolean data value. 8 7092 * 9 7093 * @return Returns the same Intent object, for chaining multiple calls 10 7094 * into a single statement. 11 7095 * 12 7096 * @see #putExtras 13 7097 * @see #removeExtra 14 7098 * @see #getBooleanExtra(String, boolean) 15 7099 */ 16 7100 public Intent putExtra(String name, boolean value) { 17 7101 if (mExtras == null) { 18 7102 mExtras = new Bundle(); 19 7103 } 20 7104 mExtras.putBoolean(name, value); 21 7105 return this; 22 7106 } 23 7107 24 7108 /** 25 7109 * Add extended data to the intent. The name must include a package 26 7110 * prefix, for example the app com.android.contacts would use names 27 7111 * like "com.android.contacts.ShowAll". 28 7112 * 29 7113 * @param name The name of the extra data, with package prefix. 30 7114 * @param value The byte data value. 31 7115 * 32 7116 * @return Returns the same Intent object, for chaining multiple calls 33 7117 * into a single statement. 34 7118 * 35 7119 * @see #putExtras 36 7120 * @see #removeExtra 37 7121 * @see #getByteExtra(String, byte) 38 7122 */ 39 7123 public Intent putExtra(String name, byte value) { 40 7124 if (mExtras == null) { 41 7125 mExtras = new Bundle(); 42 7126 } 43 7127 mExtras.putByte(name, value); 44 7128 return this; 45 7129 } 46 7130 47 7131 /** 48 7132 * Add extended data to the intent. The name must include a package 49 7133 * prefix, for example the app com.android.contacts would use names 50 7134 * like "com.android.contacts.ShowAll". 51 7135 * 52 7136 * @param name The name of the extra data, with package prefix. 53 7137 * @param value The char data value. 54 7138 * 55 7139 * @return Returns the same Intent object, for chaining multiple calls 56 7140 * into a single statement. 57 7141 * 58 7142 * @see #putExtras 59 7143 * @see #removeExtra 60 7144 * @see #getCharExtra(String, char) 61 7145 */ 62 7146 public Intent putExtra(String name, char value) { 63 7147 if (mExtras == null) { 64 7148 mExtras = new Bundle(); 65 7149 } 66 7150 mExtras.putChar(name, value); 67 7151 return this; 68 7152 } 69 7153 70 7154 /** 71 7155 * Add extended data to the intent. The name must include a package 72 7156 * prefix, for example the app com.android.contacts would use names 73 7157 * like "com.android.contacts.ShowAll". 74 7158 * 75 7159 * @param name The name of the extra data, with package prefix. 76 7160 * @param value The short data value. 77 7161 * 78 7162 * @return Returns the same Intent object, for chaining multiple calls 79 7163 * into a single statement. 80 7164 * 81 7165 * @see #putExtras 82 7166 * @see #removeExtra 83 7167 * @see #getShortExtra(String, short) 84 7168 */ 85 7169 public Intent putExtra(String name, short value) { 86 7170 if (mExtras == null) { 87 7171 mExtras = new Bundle(); 88 7172 } 89 7173 mExtras.putShort(name, value); 90 7174 return this; 91 7175 } 92 7176 93 7177 /** 94 7178 * Add extended data to the intent. The name must include a package 95 7179 * prefix, for example the app com.android.contacts would use names 96 7180 * like "com.android.contacts.ShowAll". 97 7181 * 98 7182 * @param name The name of the extra data, with package prefix. 99 7183 * @param value The integer data value. 100 7184 * 101 7185 * @return Returns the same Intent object, for chaining multiple calls 102 7186 * into a single statement. 103 7187 * 104 7188 * @see #putExtras 105 7189 * @see #removeExtra 106 7190 * @see #getIntExtra(String, int) 107 7191 */ 108 7192 public Intent putExtra(String name, int value) { 109 7193 if (mExtras == null) { 110 7194 mExtras = new Bundle(); 111 7195 } 112 7196 mExtras.putInt(name, value); 113 7197 return this; 114 7198 } 115 7199 116 7200 /** 117 7201 * Add extended data to the intent. The name must include a package 118 7202 * prefix, for example the app com.android.contacts would use names 119 7203 * like "com.android.contacts.ShowAll". 120 7204 * 121 7205 * @param name The name of the extra data, with package prefix. 122 7206 * @param value The long data value. 123 7207 * 124 7208 * @return Returns the same Intent object, for chaining multiple calls 125 7209 * into a single statement. 126 7210 * 127 7211 * @see #putExtras 128 7212 * @see #removeExtra 129 7213 * @see #getLongExtra(String, long) 130 7214 */ 131 7215 public Intent putExtra(String name, long value) { 132 7216 if (mExtras == null) { 133 7217 mExtras = new Bundle(); 134 7218 } 135 7219 mExtras.putLong(name, value); 136 7220 return this; 137 7221 } 138 7222 139 7223 /** 140 7224 * Add extended data to the intent. The name must include a package 141 7225 * prefix, for example the app com.android.contacts would use names 142 7226 * like "com.android.contacts.ShowAll". 143 7227 * 144 7228 * @param name The name of the extra data, with package prefix. 145 7229 * @param value The float data value. 146 7230 * 147 7231 * @return Returns the same Intent object, for chaining multiple calls 148 7232 * into a single statement. 149 7233 * 150 7234 * @see #putExtras 151 7235 * @see #removeExtra 152 7236 * @see #getFloatExtra(String, float) 153 7237 */ 154 7238 public Intent putExtra(String name, float value) { 155 7239 if (mExtras == null) { 156 7240 mExtras = new Bundle(); 157 7241 } 158 7242 mExtras.putFloat(name, value); 159 7243 return this; 160 7244 } 161 7245 162 7246 /** 163 7247 * Add extended data to the intent. The name must include a package 164 7248 * prefix, for example the app com.android.contacts would use names 165 7249 * like "com.android.contacts.ShowAll". 166 7250 * 167 7251 * @param name The name of the extra data, with package prefix. 168 7252 * @param value The double data value. 169 7253 * 170 7254 * @return Returns the same Intent object, for chaining multiple calls 171 7255 * into a single statement. 172 7256 * 173 7257 * @see #putExtras 174 7258 * @see #removeExtra 175 7259 * @see #getDoubleExtra(String, double) 176 7260 */ 177 7261 public Intent putExtra(String name, double value) { 178 7262 if (mExtras == null) { 179 7263 mExtras = new Bundle(); 180 7264 } 181 7265 mExtras.putDouble(name, value); 182 7266 return this; 183 7267 } 184 7268 185 7269 /** 186 7270 * Add extended data to the intent. The name must include a package 187 7271 * prefix, for example the app com.android.contacts would use names 188 7272 * like "com.android.contacts.ShowAll". 189 7273 * 190 7274 * @param name The name of the extra data, with package prefix. 191 7275 * @param value The String data value. 192 7276 * 193 7277 * @return Returns the same Intent object, for chaining multiple calls 194 7278 * into a single statement. 195 7279 * 196 7280 * @see #putExtras 197 7281 * @see #removeExtra 198 7282 * @see #getStringExtra(String) 199 7283 */ 200 7284 public Intent putExtra(String name, String value) { 201 7285 if (mExtras == null) { 202 7286 mExtras = new Bundle(); 203 7287 } 204 7288 mExtras.putString(name, value); 205 7289 return this; 206 7290 } 207 7291 208 7292 /** 209 7293 * Add extended data to the intent. The name must include a package 210 7294 * prefix, for example the app com.android.contacts would use names 211 7295 * like "com.android.contacts.ShowAll". 212 7296 * 213 7297 * @param name The name of the extra data, with package prefix. 214 7298 * @param value The CharSequence data value. 215 7299 * 216 7300 * @return Returns the same Intent object, for chaining multiple calls 217 7301 * into a single statement. 218 7302 * 219 7303 * @see #putExtras 220 7304 * @see #removeExtra 221 7305 * @see #getCharSequenceExtra(String) 222 7306 */ 223 7307 public Intent putExtra(String name, CharSequence value) { 224 7308 if (mExtras == null) { 225 7309 mExtras = new Bundle(); 226 7310 } 227 7311 mExtras.putCharSequence(name, value); 228 7312 return this; 229 7313 } 230 7314 231 7315 /** 232 7316 * Add extended data to the intent. The name must include a package 233 7317 * prefix, for example the app com.android.contacts would use names 234 7318 * like "com.android.contacts.ShowAll". 235 7319 * 236 7320 * @param name The name of the extra data, with package prefix. 237 7321 * @param value The Parcelable data value. 238 7322 * 239 7323 * @return Returns the same Intent object, for chaining multiple calls 240 7324 * into a single statement. 241 7325 * 242 7326 * @see #putExtras 243 7327 * @see #removeExtra 244 7328 * @see #getParcelableExtra(String) 245 7329 */ 246 7330 public Intent putExtra(String name, Parcelable value) { 247 7331 if (mExtras == null) { 248 7332 mExtras = new Bundle(); 249 7333 } 250 7334 mExtras.putParcelable(name, value); 251 7335 return this; 252 7336 } 253 7337 254 7338 /** 255 7339 * Add extended data to the intent. The name must include a package 256 7340 * prefix, for example the app com.android.contacts would use names 257 7341 * like "com.android.contacts.ShowAll". 258 7342 * 259 7343 * @param name The name of the extra data, with package prefix. 260 7344 * @param value The Parcelable[] data value. 261 7345 * 262 7346 * @return Returns the same Intent object, for chaining multiple calls 263 7347 * into a single statement. 264 7348 * 265 7349 * @see #putExtras 266 7350 * @see #removeExtra 267 7351 * @see #getParcelableArrayExtra(String) 268 7352 */ 269 7353 public Intent putExtra(String name, Parcelable[] value) { 270 7354 if (mExtras == null) { 271 7355 mExtras = new Bundle(); 272 7356 } 273 7357 mExtras.putParcelableArray(name, value); 274 7358 return this; 275 7359 } 276 7360 277 7361 /** 278 7362 * Add extended data to the intent. The name must include a package 279 7363 * prefix, for example the app com.android.contacts would use names 280 7364 * like "com.android.contacts.ShowAll". 281 7365 * 282 7366 * @param name The name of the extra data, with package prefix. 283 7367 * @param value The ArrayList<Parcelable> data value. 284 7368 * 285 7369 * @return Returns the same Intent object, for chaining multiple calls 286 7370 * into a single statement. 287 7371 * 288 7372 * @see #putExtras 289 7373 * @see #removeExtra 290 7374 * @see #getParcelableArrayListExtra(String) 291 7375 */ 292 7376 public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) { 293 7377 if (mExtras == null) { 294 7378 mExtras = new Bundle(); 295 7379 } 296 7380 mExtras.putParcelableArrayList(name, value); 297 7381 return this; 298 7382 } 299 7383 300 7384 /** 301 7385 * Add extended data to the intent. The name must include a package 302 7386 * prefix, for example the app com.android.contacts would use names 303 7387 * like "com.android.contacts.ShowAll". 304 7388 * 305 7389 * @param name The name of the extra data, with package prefix. 306 7390 * @param value The ArrayList<Integer> data value. 307 7391 * 308 7392 * @return Returns the same Intent object, for chaining multiple calls 309 7393 * into a single statement. 310 7394 * 311 7395 * @see #putExtras 312 7396 * @see #removeExtra 313 7397 * @see #getIntegerArrayListExtra(String) 314 7398 */ 315 7399 public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) { 316 7400 if (mExtras == null) { 317 7401 mExtras = new Bundle(); 318 7402 } 319 7403 mExtras.putIntegerArrayList(name, value); 320 7404 return this; 321 7405 } 322 7406 323 7407 /** 324 7408 * Add extended data to the intent. The name must include a package 325 7409 * prefix, for example the app com.android.contacts would use names 326 7410 * like "com.android.contacts.ShowAll". 327 7411 * 328 7412 * @param name The name of the extra data, with package prefix. 329 7413 * @param value The ArrayList<String> data value. 330 7414 * 331 7415 * @return Returns the same Intent object, for chaining multiple calls 332 7416 * into a single statement. 333 7417 * 334 7418 * @see #putExtras 335 7419 * @see #removeExtra 336 7420 * @see #getStringArrayListExtra(String) 337 7421 */ 338 7422 public Intent putStringArrayListExtra(String name, ArrayList<String> value) { 339 7423 if (mExtras == null) { 340 7424 mExtras = new Bundle(); 341 7425 } 342 7426 mExtras.putStringArrayList(name, value); 343 7427 return this; 344 7428 } 345 7429 346 7430 /** 347 7431 * Add extended data to the intent. The name must include a package 348 7432 * prefix, for example the app com.android.contacts would use names 349 7433 * like "com.android.contacts.ShowAll". 350 7434 * 351 7435 * @param name The name of the extra data, with package prefix. 352 7436 * @param value The ArrayList<CharSequence> data value. 353 7437 * 354 7438 * @return Returns the same Intent object, for chaining multiple calls 355 7439 * into a single statement. 356 7440 * 357 7441 * @see #putExtras 358 7442 * @see #removeExtra 359 7443 * @see #getCharSequenceArrayListExtra(String) 360 7444 */ 361 7445 public Intent putCharSequenceArrayListExtra(String name, ArrayList<CharSequence> value) { 362 7446 if (mExtras == null) { 363 7447 mExtras = new Bundle(); 364 7448 } 365 7449 mExtras.putCharSequenceArrayList(name, value); 366 7450 return this; 367 7451 } 368 7452 369 7453 /** 370 7454 * Add extended data to the intent. The name must include a package 371 7455 * prefix, for example the app com.android.contacts would use names 372 7456 * like "com.android.contacts.ShowAll". 373 7457 * 374 7458 * @param name The name of the extra data, with package prefix. 375 7459 * @param value The Serializable data value. 376 7460 * 377 7461 * @return Returns the same Intent object, for chaining multiple calls 378 7462 * into a single statement. 379 7463 * 380 7464 * @see #putExtras 381 7465 * @see #removeExtra 382 7466 * @see #getSerializableExtra(String) 383 7467 */ 384 7468 public Intent putExtra(String name, Serializable value) { 385 7469 if (mExtras == null) { 386 7470 mExtras = new Bundle(); 387 7471 } 388 7472 mExtras.putSerializable(name, value); 389 7473 return this; 390 7474 } 391 7475 392 7476 /** 393 7477 * Add extended data to the intent. The name must include a package 394 7478 * prefix, for example the app com.android.contacts would use names 395 7479 * like "com.android.contacts.ShowAll". 396 7480 * 397 7481 * @param name The name of the extra data, with package prefix. 398 7482 * @param value The boolean array data value. 399 7483 * 400 7484 * @return Returns the same Intent object, for chaining multiple calls 401 7485 * into a single statement. 402 7486 * 403 7487 * @see #putExtras 404 7488 * @see #removeExtra 405 7489 * @see #getBooleanArrayExtra(String) 406 7490 */ 407 7491 public Intent putExtra(String name, boolean[] value) { 408 7492 if (mExtras == null) { 409 7493 mExtras = new Bundle(); 410 7494 } 411 7495 mExtras.putBooleanArray(name, value); 412 7496 return this; 413 7497 } 414 7498 415 7499 /** 416 7500 * Add extended data to the intent. The name must include a package 417 7501 * prefix, for example the app com.android.contacts would use names 418 7502 * like "com.android.contacts.ShowAll". 419 7503 * 420 7504 * @param name The name of the extra data, with package prefix. 421 7505 * @param value The byte array data value. 422 7506 * 423 7507 * @return Returns the same Intent object, for chaining multiple calls 424 7508 * into a single statement. 425 7509 * 426 7510 * @see #putExtras 427 7511 * @see #removeExtra 428 7512 * @see #getByteArrayExtra(String) 429 7513 */ 430 7514 public Intent putExtra(String name, byte[] value) { 431 7515 if (mExtras == null) { 432 7516 mExtras = new Bundle(); 433 7517 } 434 7518 mExtras.putByteArray(name, value); 435 7519 return this; 436 7520 } 437 7521 438 7522 /** 439 7523 * Add extended data to the intent. The name must include a package 440 7524 * prefix, for example the app com.android.contacts would use names 441 7525 * like "com.android.contacts.ShowAll". 442 7526 * 443 7527 * @param name The name of the extra data, with package prefix. 444 7528 * @param value The short array data value. 445 7529 * 446 7530 * @return Returns the same Intent object, for chaining multiple calls 447 7531 * into a single statement. 448 7532 * 449 7533 * @see #putExtras 450 7534 * @see #removeExtra 451 7535 * @see #getShortArrayExtra(String) 452 7536 */ 453 7537 public Intent putExtra(String name, short[] value) { 454 7538 if (mExtras == null) { 455 7539 mExtras = new Bundle(); 456 7540 } 457 7541 mExtras.putShortArray(name, value); 458 7542 return this; 459 7543 } 460 7544 461 7545 /** 462 7546 * Add extended data to the intent. The name must include a package 463 7547 * prefix, for example the app com.android.contacts would use names 464 7548 * like "com.android.contacts.ShowAll". 465 7549 * 466 7550 * @param name The name of the extra data, with package prefix. 467 7551 * @param value The char array data value. 468 7552 * 469 7553 * @return Returns the same Intent object, for chaining multiple calls 470 7554 * into a single statement. 471 7555 * 472 7556 * @see #putExtras 473 7557 * @see #removeExtra 474 7558 * @see #getCharArrayExtra(String) 475 7559 */ 476 7560 public Intent putExtra(String name, char[] value) { 477 7561 if (mExtras == null) { 478 7562 mExtras = new Bundle(); 479 7563 } 480 7564 mExtras.putCharArray(name, value); 481 7565 return this; 482 7566 } 483 7567 484 7568 /** 485 7569 * Add extended data to the intent. The name must include a package 486 7570 * prefix, for example the app com.android.contacts would use names 487 7571 * like "com.android.contacts.ShowAll". 488 7572 * 489 7573 * @param name The name of the extra data, with package prefix. 490 7574 * @param value The int array data value. 491 7575 * 492 7576 * @return Returns the same Intent object, for chaining multiple calls 493 7577 * into a single statement. 494 7578 * 495 7579 * @see #putExtras 496 7580 * @see #removeExtra 497 7581 * @see #getIntArrayExtra(String) 498 7582 */ 499 7583 public Intent putExtra(String name, int[] value) { 500 7584 if (mExtras == null) { 501 7585 mExtras = new Bundle(); 502 7586 } 503 7587 mExtras.putIntArray(name, value); 504 7588 return this; 505 7589 } 506 7590 507 7591 /** 508 7592 * Add extended data to the intent. The name must include a package 509 7593 * prefix, for example the app com.android.contacts would use names 510 7594 * like "com.android.contacts.ShowAll". 511 7595 * 512 7596 * @param name The name of the extra data, with package prefix. 513 7597 * @param value The byte array data value. 514 7598 * 515 7599 * @return Returns the same Intent object, for chaining multiple calls 516 7600 * into a single statement. 517 7601 * 518 7602 * @see #putExtras 519 7603 * @see #removeExtra 520 7604 * @see #getLongArrayExtra(String) 521 7605 */ 522 7606 public Intent putExtra(String name, long[] value) { 523 7607 if (mExtras == null) { 524 7608 mExtras = new Bundle(); 525 7609 } 526 7610 mExtras.putLongArray(name, value); 527 7611 return this; 528 7612 } 529 7613 530 7614 /** 531 7615 * Add extended data to the intent. The name must include a package 532 7616 * prefix, for example the app com.android.contacts would use names 533 7617 * like "com.android.contacts.ShowAll". 534 7618 * 535 7619 * @param name The name of the extra data, with package prefix. 536 7620 * @param value The float array data value. 537 7621 * 538 7622 * @return Returns the same Intent object, for chaining multiple calls 539 7623 * into a single statement. 540 7624 * 541 7625 * @see #putExtras 542 7626 * @see #removeExtra 543 7627 * @see #getFloatArrayExtra(String) 544 7628 */ 545 7629 public Intent putExtra(String name, float[] value) { 546 7630 if (mExtras == null) { 547 7631 mExtras = new Bundle(); 548 7632 } 549 7633 mExtras.putFloatArray(name, value); 550 7634 return this; 551 7635 } 552 7636 553 7637 /** 554 7638 * Add extended data to the intent. The name must include a package 555 7639 * prefix, for example the app com.android.contacts would use names 556 7640 * like "com.android.contacts.ShowAll". 557 7641 * 558 7642 * @param name The name of the extra data, with package prefix. 559 7643 * @param value The double array data value. 560 7644 * 561 7645 * @return Returns the same Intent object, for chaining multiple calls 562 7646 * into a single statement. 563 7647 * 564 7648 * @see #putExtras 565 7649 * @see #removeExtra 566 7650 * @see #getDoubleArrayExtra(String) 567 7651 */ 568 7652 public Intent putExtra(String name, double[] value) { 569 7653 if (mExtras == null) { 570 7654 mExtras = new Bundle(); 571 7655 } 572 7656 mExtras.putDoubleArray(name, value); 573 7657 return this; 574 7658 } 575 7659 576 7660 /** 577 7661 * Add extended data to the intent. The name must include a package 578 7662 * prefix, for example the app com.android.contacts would use names 579 7663 * like "com.android.contacts.ShowAll". 580 7664 * 581 7665 * @param name The name of the extra data, with package prefix. 582 7666 * @param value The String array data value. 583 7667 * 584 7668 * @return Returns the same Intent object, for chaining multiple calls 585 7669 * into a single statement. 586 7670 * 587 7671 * @see #putExtras 588 7672 * @see #removeExtra 589 7673 * @see #getStringArrayExtra(String) 590 7674 */ 591 7675 public Intent putExtra(String name, String[] value) { 592 7676 if (mExtras == null) { 593 7677 mExtras = new Bundle(); 594 7678 } 595 7679 mExtras.putStringArray(name, value); 596 7680 return this; 597 7681 } 598 7682 599 7683 /** 600 7684 * Add extended data to the intent. The name must include a package 601 7685 * prefix, for example the app com.android.contacts would use names 602 7686 * like "com.android.contacts.ShowAll". 603 7687 * 604 7688 * @param name The name of the extra data, with package prefix. 605 7689 * @param value The CharSequence array data value. 606 7690 * 607 7691 * @return Returns the same Intent object, for chaining multiple calls 608 7692 * into a single statement. 609 7693 * 610 7694 * @see #putExtras 611 7695 * @see #removeExtra 612 7696 * @see #getCharSequenceArrayExtra(String) 613 7697 */ 614 7698 public Intent putExtra(String name, CharSequence[] value) { 615 7699 if (mExtras == null) { 616 7700 mExtras = new Bundle(); 617 7701 } 618 7702 mExtras.putCharSequenceArray(name, value); 619 7703 return this; 620 7704 } 621 7705 622 7706 /** 623 7707 * Add extended data to the intent. The name must include a package 624 7708 * prefix, for example the app com.android.contacts would use names 625 7709 * like "com.android.contacts.ShowAll". 626 7710 * 627 7711 * @param name The name of the extra data, with package prefix. 628 7712 * @param value The Bundle data value. 629 7713 * 630 7714 * @return Returns the same Intent object, for chaining multiple calls 631 7715 * into a single statement. 632 7716 * 633 7717 * @see #putExtras 634 7718 * @see #removeExtra 635 7719 * @see #getBundleExtra(String) 636 7720 */ 637 7721 public Intent putExtra(String name, Bundle value) { 638 7722 if (mExtras == null) { 639 7723 mExtras = new Bundle(); 640 7724 } 641 7725 mExtras.putBundle(name, value); 642 7726 return this; 643 7727 } 644 7728 645 7729 /** 646 7730 * Add extended data to the intent. The name must include a package 647 7731 * prefix, for example the app com.android.contacts would use names 648 7732 * like "com.android.contacts.ShowAll". 649 7733 * 650 7734 * @param name The name of the extra data, with package prefix. 651 7735 * @param value The IBinder data value. 652 7736 * 653 7737 * @return Returns the same Intent object, for chaining multiple calls 654 7738 * into a single statement. 655 7739 * 656 7740 * @see #putExtras 657 7741 * @see #removeExtra 658 7742 * @see #getIBinderExtra(String) 659 7743 * 660 7744 * @deprecated 661 7745 * @hide 662 7746 */ 663 7747 @Deprecated 664 7748 public Intent putExtra(String name, IBinder value) { 665 7749 if (mExtras == null) { 666 7750 mExtras = new Bundle(); 667 7751 } 668 7752 mExtras.putIBinder(name, value); 669 7753 return this; 670 7754 }
putExtras拷贝所有外部的Intent的东西到当前mExtras
1 7756 /** 2 7757 * Copy all extras in 'src' in to this intent. 3 7758 * 4 7759 * @param src Contains the extras to copy. 5 7760 * 6 7761 * @see #putExtra 7 7762 */ 8 7763 public Intent putExtras(Intent src) { 9 7764 if (src.mExtras != null) { 10 7765 if (mExtras == null) { 11 7766 mExtras = new Bundle(src.mExtras); 12 7767 } else { 13 7768 mExtras.putAll(src.mExtras); 14 7769 } 15 7770 } 16 7771 return this; 17 7772 } 18 7773 19 7774 /** 20 7775 * Add a set of extended data to the intent. The keys must include a package 21 7776 * prefix, for example the app com.android.contacts would use names 22 7777 * like "com.android.contacts.ShowAll". 23 7778 * 24 7779 * @param extras The Bundle of extras to add to this intent. 25 7780 * 26 7781 * @see #putExtra 27 7782 * @see #removeExtra 28 7783 */ 29 7784 public Intent putExtras(Bundle extras) { 30 7785 if (mExtras == null) { 31 7786 mExtras = new Bundle(); 32 7787 } 33 7788 mExtras.putAll(extras); 34 7789 return this; 35 7790 }
replaceExtras完全替换当前的mExtras
1 7792 /** 2 7793 * Completely replace the extras in the Intent with the extras in the 3 7794 * given Intent. 4 7795 * 5 7796 * @param src The exact extras contained in this Intent are copied 6 7797 * into the target intent, replacing any that were previously there. 7 7798 */ 8 7799 public Intent replaceExtras(Intent src) { 9 7800 mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null; 10 7801 return this; 11 7802 } 12 7803 13 7804 /** 14 7805 * Completely replace the extras in the Intent with the given Bundle of 15 7806 * extras. 16 7807 * 17 7808 * @param extras The new set of extras in the Intent, or null to erase 18 7809 * all extras. 19 7810 */ 20 7811 public Intent replaceExtras(Bundle extras) { 21 7812 mExtras = extras != null ? new Bundle(extras) : null; 22 7813 return this; 23 7814 }
removeExtra调用Bundle的remove方法清空内容，并将其设为NULL
1 7816 /** 2 7817 * Remove extended data from the intent. 3 7818 * 4 7819 * @see #putExtra 5 7820 */ 6 7821 public void removeExtra(String name) { 7 7822 if (mExtras != null) { 8 7823 mExtras.remove(name); 9 7824 if (mExtras.size() == 0) { 10 7825 mExtras = null; 11 7826 } 12 7827 } 13 7828 }
setFlags和addFlags设置和附加flag
1 7830 /** 2 7831 * Set special flags controlling how this intent is handled. Most values 3 7832 * here depend on the type of component being executed by the Intent, 4 7833 * specifically the FLAG_ACTIVITY_* flags are all for use with 5 7834 * {@link Context#startActivity Context.startActivity()} and the 6 7835 * FLAG_RECEIVER_* flags are all for use with 7 7836 * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}. 8 7837 * 9 7838 * <p>See the 10 7839 * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back 11 7840 * Stack</a> documentation for important information on how some of these options impact 12 7841 * the behavior of your application. 13 7842 * 14 7843 * @param flags The desired flags. 15 7844 * 16 7845 * @return Returns the same Intent object, for chaining multiple calls 17 7846 * into a single statement. 18 7847 * 19 7848 * @see #getFlags 20 7849 * @see #addFlags 21 7850 * 22 7851 * @see #FLAG_GRANT_READ_URI_PERMISSION 23 7852 * @see #FLAG_GRANT_WRITE_URI_PERMISSION 24 7853 * @see #FLAG_GRANT_PERSISTABLE_URI_PERMISSION 25 7854 * @see #FLAG_GRANT_PREFIX_URI_PERMISSION 26 7855 * @see #FLAG_DEBUG_LOG_RESOLUTION 27 7856 * @see #FLAG_FROM_BACKGROUND 28 7857 * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT 29 7858 * @see #FLAG_ACTIVITY_CLEAR_TASK 30 7859 * @see #FLAG_ACTIVITY_CLEAR_TOP 31 7860 * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET 32 7861 * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS 33 7862 * @see #FLAG_ACTIVITY_FORWARD_RESULT 34 7863 * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY 35 7864 * @see #FLAG_ACTIVITY_MULTIPLE_TASK 36 7865 * @see #FLAG_ACTIVITY_NEW_DOCUMENT 37 7866 * @see #FLAG_ACTIVITY_NEW_TASK 38 7867 * @see #FLAG_ACTIVITY_NO_ANIMATION 39 7868 * @see #FLAG_ACTIVITY_NO_HISTORY 40 7869 * @see #FLAG_ACTIVITY_NO_USER_ACTION 41 7870 * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP 42 7871 * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED 43 7872 * @see #FLAG_ACTIVITY_REORDER_TO_FRONT 44 7873 * @see #FLAG_ACTIVITY_SINGLE_TOP 45 7874 * @see #FLAG_ACTIVITY_TASK_ON_HOME 46 7875 * @see #FLAG_RECEIVER_REGISTERED_ONLY 47 7876 */ 48 7877 public Intent setFlags(int flags) { 49 7878 mFlags = flags; 50 7879 return this; 51 7880 } 52 7881 53 7882 /** 54 7883 * Add additional flags to the intent (or with existing flags 55 7884 * value). 56 7885 * 57 7886 * @param flags The new flags to set. 58 7887 * 59 7888 * @return Returns the same Intent object, for chaining multiple calls 60 7889 * into a single statement. 61 7890 * 62 7891 * @see #setFlags 63 7892 */ 64 7893 public Intent addFlags(int flags) { 65 7894 mFlags |= flags; 66 7895 return this; 67 7896 } 68 7897
setPackage设packageName,mSelector一定要为空
1 7898 /** 2 7899 * (Usually optional) Set an explicit application package name that limits 3 7900 * the components this Intent will resolve to. If left to the default 4 7901 * value of null, all components in all applications will considered. 5 7902 * If non-null, the Intent can only match the components in the given 6 7903 * application package. 7 7904 * 8 7905 * @param packageName The name of the application package to handle the 9 7906 * intent, or null to allow any application package. 10 7907 * 11 7908 * @return Returns the same Intent object, for chaining multiple calls 12 7909 * into a single statement. 13 7910 * 14 7911 * @see #getPackage 15 7912 * @see #resolveActivity 16 7913 */ 17 7914 public Intent setPackage(String packageName) { 18 7915 if (packageName != null && mSelector != null) { 19 7916 throw new IllegalArgumentException( 20 7917 "Can't set package name when selector is already set"); 21 7918 } 22 7919 mPackage = packageName; 23 7920 return this; 24 7921 } 25 7922
setComponent设置component
1 7923 /** 2 7924 * (Usually optional) Explicitly set the component to handle the intent. 3 7925 * If left with the default value of null, the system will determine the 4 7926 * appropriate class to use based on the other fields (action, data, 5 7927 * type, categories) in the Intent. If this class is defined, the 6 7928 * specified class will always be used regardless of the other fields. You 7 7929 * should only set this value when you know you absolutely want a specific 8 7930 * class to be used; otherwise it is better to let the system find the 9 7931 * appropriate class so that you will respect the installed applications 10 7932 * and user preferences. 11 7933 * 12 7934 * @param component The name of the application component to handle the 13 7935 * intent, or null to let the system find one for you. 14 7936 * 15 7937 * @return Returns the same Intent object, for chaining multiple calls 16 7938 * into a single statement. 17 7939 * 18 7940 * @see #setClass 19 7941 * @see #setClassName(Context, String) 20 7942 * @see #setClassName(String, String) 21 7943 * @see #getComponent 22 7944 * @see #resolveActivity 23 7945 */ 24 7946 public Intent setComponent(ComponentName component) { 25 7947 mComponent = component; 26 7948 return this; 27 7949 }
setClassName,setClass用ComponentName来通过类或者类名设置mComponent
1 7951 /** 2 7952 * Convenience for calling {@link #setComponent} with an 3 7953 * explicit class name. 4 7954 * 5 7955 * @param packageContext A Context of the application package implementing 6 7956 * this class. 7 7957 * @param className The name of a class inside of the application package 8 7958 * that will be used as the component for this Intent. 9 7959 * 10 7960 * @return Returns the same Intent object, for chaining multiple calls 11 7961 * into a single statement. 12 7962 * 13 7963 * @see #setComponent 14 7964 * @see #setClass 15 7965 */ 16 7966 public Intent setClassName(Context packageContext, String className) { 17 7967 mComponent = new ComponentName(packageContext, className); 18 7968 return this; 19 7969 } 20 7970 21 7971 /** 22 7972 * Convenience for calling {@link #setComponent} with an 23 7973 * explicit application package name and class name. 24 7974 * 25 7975 * @param packageName The name of the package implementing the desired 26 7976 * component. 27 7977 * @param className The name of a class inside of the application package 28 7978 * that will be used as the component for this Intent. 29 7979 * 30 7980 * @return Returns the same Intent object, for chaining multiple calls 31 7981 * into a single statement. 32 7982 * 33 7983 * @see #setComponent 34 7984 * @see #setClass 35 7985 */ 36 7986 public Intent setClassName(String packageName, String className) { 37 7987 mComponent = new ComponentName(packageName, className); 38 7988 return this; 39 7989 } 40 7990 41 7991 /** 42 7992 * Convenience for calling {@link #setComponent(ComponentName)} with the 43 7993 * name returned by a {@link Class} object. 44 7994 * 45 7995 * @param packageContext A Context of the application package implementing 46 7996 * this class. 47 7997 * @param cls The class name to set, equivalent to 48 7998 * <code>setClassName(context, cls.getName())</code>. 49 7999 * 50 8000 * @return Returns the same Intent object, for chaining multiple calls 51 8001 * into a single statement. 52 8002 * 53 8003 * @see #setComponent 54 8004 */ 55 8005 public Intent setClass(Context packageContext, Class<?> cls) { 56 8006 mComponent = new ComponentName(packageContext, cls); 57 8007 return this; 58 8008 }
setSourceBounds这只mSourceBounds，原始发送者的屏幕坐标范围
1 8010 /** 2 8011 * Set the bounds of the sender of this intent, in screen coordinates. This can be 3 8012 * used as a hint to the receiver for animations and the like. Null means that there 4 8013 * is no source bounds. 5 8014 */ 6 8015 public void setSourceBounds(Rect r) { 7 8016 if (r != null) { 8 8017 mSourceBounds = new Rect(r); 9 8018 } else { 10 8019 mSourceBounds = null; 11 8020 } 12 8021 }
定义interface注释FillInFlags
1 8023 /** @hide */ 2 8024 @IntDef(flag = true, 3 8025 value = { 4 8026 FILL_IN_ACTION, 5 8027 FILL_IN_DATA, 6 8028 FILL_IN_CATEGORIES, 7 8029 FILL_IN_COMPONENT, 8 8030 FILL_IN_PACKAGE, 9 8031 FILL_IN_SOURCE_BOUNDS, 10 8032 FILL_IN_SELECTOR, 11 8033 FILL_IN_CLIP_DATA 12 8034 }) 13 8035 @Retention(RetentionPolicy.SOURCE) 14 8036 public @interface FillInFlags {}
下面八个是可以被FillIn的私有变量
1 8038 /** 2 8039 * Use with {@link #fillIn} to allow the current action value to be 3 8040 * overwritten, even if it is already set. 4 8041 */ 5 8042 public static final int FILL_IN_ACTION = 1<<0; 6 8043 7 8044 /** 8 8045 * Use with {@link #fillIn} to allow the current data or type value 9 8046 * overwritten, even if it is already set. 10 8047 */ 11 8048 public static final int FILL_IN_DATA = 1<<1; 12 8049 13 8050 /** 14 8051 * Use with {@link #fillIn} to allow the current categories to be 15 8052 * overwritten, even if they are already set. 16 8053 */ 17 8054 public static final int FILL_IN_CATEGORIES = 1<<2; 18 8055 19 8056 /** 20 8057 * Use with {@link #fillIn} to allow the current component value to be 21 8058 * overwritten, even if it is already set. 22 8059 */ 23 8060 public static final int FILL_IN_COMPONENT = 1<<3; 24 8061 25 8062 /** 26 8063 * Use with {@link #fillIn} to allow the current package value to be 27 8064 * overwritten, even if it is already set. 28 8065 */ 29 8066 public static final int FILL_IN_PACKAGE = 1<<4; 30 8067 31 8068 /** 32 8069 * Use with {@link #fillIn} to allow the current bounds rectangle to be 33 8070 * overwritten, even if it is already set. 34 8071 */ 35 8072 public static final int FILL_IN_SOURCE_BOUNDS = 1<<5; 36 8073 37 8074 /** 38 8075 * Use with {@link #fillIn} to allow the current selector to be 39 8076 * overwritten, even if it is already set. 40 8077 */ 41 8078 public static final int FILL_IN_SELECTOR = 1<<6; 42 8079 43 8080 /** 44 8081 * Use with {@link #fillIn} to allow the current ClipData to be 45 8082 * overwritten, even if it is already set. 46 8083 */ 47 8084 public static final int FILL_IN_CLIP_DATA = 1<<7; 48 8085
FillIn函数从另外一个Intent里拷贝需要的数据，flag指定哪些数据要被拷贝
1 8086 /** 2 8087 * Copy the contents of <var>other</var> in to this object, but only 3 8088 * where fields are not defined by this object. For purposes of a field 4 8089 * being defined, the following pieces of data in the Intent are 5 8090 * considered to be separate fields: 6 8091 * 7 8092 * <ul> 8 8093 * <li> action, as set by {@link #setAction}. 9 8094 * <li> data Uri and MIME type, as set by {@link #setData(Uri)}, 10 8095 * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}. 11 8096 * <li> categories, as set by {@link #addCategory}. 12 8097 * <li> package, as set by {@link #setPackage}. 13 8098 * <li> component, as set by {@link #setComponent(ComponentName)} or 14 8099 * related methods. 15 8100 * <li> source bounds, as set by {@link #setSourceBounds}. 16 8101 * <li> selector, as set by {@link #setSelector(Intent)}. 17 8102 * <li> clip data, as set by {@link #setClipData(ClipData)}. 18 8103 * <li> each top-level name in the associated extras. 19 8104 * </ul> 20 8105 * 21 8106 * <p>In addition, you can use the {@link #FILL_IN_ACTION}, 22 8107 * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE}, 23 8108 * {@link #FILL_IN_COMPONENT}, {@link #FILL_IN_SOURCE_BOUNDS}, 24 8109 * {@link #FILL_IN_SELECTOR}, and {@link #FILL_IN_CLIP_DATA} to override 25 8110 * the restriction where the corresponding field will not be replaced if 26 8111 * it is already set. 27 8112 * 28 8113 * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT} 29 8114 * is explicitly specified. The selector will only be copied if 30 8115 * {@link #FILL_IN_SELECTOR} is explicitly specified. 31 8116 * 32 8117 * <p>For example, consider Intent A with {data="foo", categories="bar"} 33 8118 * and Intent B with {action="gotit", data-type="some/thing", 34 8119 * categories="one","two"}. 35 8120 * 36 8121 * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now 37 8122 * containing: {action="gotit", data-type="some/thing", 38 8123 * categories="bar"}. 39 8124 * 40 8125 * @param other Another Intent whose values are to be used to fill in 41 8126 * the current one. 42 8127 * @param flags Options to control which fields can be filled in. 43 8128 * 44 8129 * @return Returns a bit mask of {@link #FILL_IN_ACTION}, 45 8130 * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE}, 46 8131 * {@link #FILL_IN_COMPONENT}, {@link #FILL_IN_SOURCE_BOUNDS}, 47 8132 * {@link #FILL_IN_SELECTOR} and {@link #FILL_IN_CLIP_DATA indicating which fields were 48 8133 * changed. 49 8134 */ 50 8135 @FillInFlags 51 8136 public int fillIn(Intent other, @FillInFlags int flags) { 52 8137 int changes = 0; 53 8138 boolean mayHaveCopiedUris = false; 54 8139 if (other.mAction != null 55 8140 && (mAction == null || (flags&FILL_IN_ACTION) != 0)) { 56 8141 mAction = other.mAction; 57 8142 changes |= FILL_IN_ACTION; 58 8143 } 59 8144 if ((other.mData != null || other.mType != null) 60 8145 && ((mData == null && mType == null) 61 8146 || (flags&FILL_IN_DATA) != 0)) { 62 8147 mData = other.mData; 63 8148 mType = other.mType; 64 8149 changes |= FILL_IN_DATA; 65 8150 mayHaveCopiedUris = true; 66 8151 } 67 8152 if (other.mCategories != null 68 8153 && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) { 69 8154 if (other.mCategories != null) { 70 8155 mCategories = new ArraySet<String>(other.mCategories); 71 8156 } 72 8157 changes |= FILL_IN_CATEGORIES; 73 8158 } 74 8159 if (other.mPackage != null 75 8160 && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) { 76 8161 // Only do this if mSelector is not set. 77 8162 if (mSelector == null) { 78 8163 mPackage = other.mPackage; 79 8164 changes |= FILL_IN_PACKAGE; 80 8165 } 81 8166 } 82 8167 // Selector is special: it can only be set if explicitly allowed, 83 8168 // for the same reason as the component name. 84 8169 if (other.mSelector != null && (flags&FILL_IN_SELECTOR) != 0) { 85 8170 if (mPackage == null) { 86 8171 mSelector = new Intent(other.mSelector); 87 8172 mPackage = null; 88 8173 changes |= FILL_IN_SELECTOR; 89 8174 } 90 8175 } 91 8176 if (other.mClipData != null 92 8177 && (mClipData == null || (flags&FILL_IN_CLIP_DATA) != 0)) { 93 8178 mClipData = other.mClipData; 94 8179 changes |= FILL_IN_CLIP_DATA; 95 8180 mayHaveCopiedUris = true; 96 8181 } 97 8182 // Component is special: it can -only- be set if explicitly allowed, 98 8183 // since otherwise the sender could force the intent somewhere the 99 8184 // originator didn't intend. 100 8185 if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) { 101 8186 mComponent = other.mComponent; 102 8187 changes |= FILL_IN_COMPONENT; 103 8188 } 104 8189 mFlags |= other.mFlags; 105 8190 if (other.mSourceBounds != null 106 8191 && (mSourceBounds == null || (flags&FILL_IN_SOURCE_BOUNDS) != 0)) { 107 8192 mSourceBounds = new Rect(other.mSourceBounds); 108 8193 changes |= FILL_IN_SOURCE_BOUNDS; 109 8194 } 110 8195 if (mExtras == null) { 111 8196 if (other.mExtras != null) { 112 8197 mExtras = new Bundle(other.mExtras); 113 8198 mayHaveCopiedUris = true; 114 8199 } 115 8200 } else if (other.mExtras != null) { 116 8201 try { 117 8202 Bundle newb = new Bundle(other.mExtras); 118 8203 newb.putAll(mExtras); 119 8204 mExtras = newb; 120 8205 mayHaveCopiedUris = true; 121 8206 } catch (RuntimeException e) { 122 8207 // Modifying the extras can cause us to unparcel the contents 123 8208 // of the bundle, and if we do this in the system process that 124 8209 // may fail. We really should handle this (i.e., the Bundle 125 8210 // impl shouldn't be on top of a plain map), but for now just 126 8211 // ignore it and keep the original contents. :( 127 8212 Log.w("Intent", "Failure filling in extras", e); 128 8213 } 129 8214 } 130 8215 if (mayHaveCopiedUris && mContentUserHint == UserHandle.USER_CURRENT 131 8216 && other.mContentUserHint != UserHandle.USER_CURRENT) { 132 8217 mContentUserHint = other.mContentUserHint; 133 8218 } 134 8219 return changes; 135 8220 }
filterEquals判断两个Intent是否相同
1 8263 /** 2 8264 * Determine if two intents are the same for the purposes of intent 3 8265 * resolution (filtering). That is, if their action, data, type, 4 8266 * class, and categories are the same. This does <em>not</em> compare 5 8267 * any extra data included in the intents. 6 8268 * 7 8269 * @param other The other Intent to compare against. 8 8270 * 9 8271 * @return Returns true if action, data, type, class, and categories 10 8272 * are the same. 11 8273 */ 12 8274 public boolean filterEquals(Intent other) { 13 8275 if (other == null) { 14 8276 return false; 15 8277 } 16 8278 if (!Objects.equals(this.mAction, other.mAction)) return false; 17 8279 if (!Objects.equals(this.mData, other.mData)) return false; 18 8280 if (!Objects.equals(this.mType, other.mType)) return false; 19 8281 if (!Objects.equals(this.mPackage, other.mPackage)) return false; 20 8282 if (!Objects.equals(this.mComponent, other.mComponent)) return false; 21 8283 if (!Objects.equals(this.mCategories, other.mCategories)) return false; 22 8284 23 8285 return true; 24 8286 }
filterHashCode返回几个核心私有变量的hashcode之和
1 8288 /** 2 8289 * Generate hash code that matches semantics of filterEquals(). 3 8290 * 4 8291 * @return Returns the hash value of the action, data, type, class, and 5 8292 * categories. 6 8293 * 7 8294 * @see #filterEquals 8 8295 */ 9 8296 public int filterHashCode() { 10 8297 int code = 0; 11 8298 if (mAction != null) { 12 8299 code += mAction.hashCode(); 13 8300 } 14 8301 if (mData != null) { 15 8302 code += mData.hashCode(); 16 8303 } 17 8304 if (mType != null) { 18 8305 code += mType.hashCode(); 19 8306 } 20 8307 if (mPackage != null) { 21 8308 code += mPackage.hashCode(); 22 8309 } 23 8310 if (mComponent != null) { 24 8311 code += mComponent.hashCode(); 25 8312 } 26 8313 if (mCategories != null) { 27 8314 code += mCategories.hashCode(); 28 8315 } 29 8316 return code; 30 8317 }
静态内部类FilterComparison抽象了比较两个Intent的流程
1 8222 /** 2 8223 * Wrapper class holding an Intent and implementing comparisons on it for 3 8224 * the purpose of filtering. The class implements its 4 8225 * {@link #equals equals()} and {@link #hashCode hashCode()} methods as 5 8226 * simple calls to {@link Intent#filterEquals(Intent)} filterEquals()} and 6 8227 * {@link android.content.Intent#filterHashCode()} filterHashCode()} 7 8228 * on the wrapped Intent. 8 8229 */ 9 8230 public static final class FilterComparison { 10 8231 private final Intent mIntent; 11 8232 private final int mHashCode; 12 8233 13 8234 public FilterComparison(Intent intent) { 14 8235 mIntent = intent; 15 8236 mHashCode = intent.filterHashCode(); 16 8237 } 17 8238 18 8239 /** 19 8240 * Return the Intent that this FilterComparison represents. 20 8241 * @return Returns the Intent held by the FilterComparison. Do 21 8242 * not modify! 22 8243 */ 23 8244 public Intent getIntent() { 24 8245 return mIntent; 25 8246 } 26 8247 27 8248 @Override 28 8249 public boolean equals(Object obj) { 29 8250 if (obj instanceof FilterComparison) { 30 8251 Intent other = ((FilterComparison)obj).mIntent; 31 8252 return mIntent.filterEquals(other); 32 8253 } 33 8254 return false; 34 8255 } 35 8256 36 8257 @Override 37 8258 public int hashCode() { 38 8259 return mHashCode; 39 8260 } 40 8261 }
一系列的toString函数返回Intetn内部的关键变量字符串
1 8319 @Override 2 8320 public String toString() { 3 8321 StringBuilder b = new StringBuilder(128); 4 8322 5 8323 b.append("Intent { "); 6 8324 toShortString(b, true, true, true, false); 7 8325 b.append(" }"); 8 8326 9 8327 return b.toString(); 10 8328 } 11 8329 12 8330 /** @hide */ 13 8331 public String toInsecureString() { 14 8332 StringBuilder b = new StringBuilder(128); 15 8333 16 8334 b.append("Intent { "); 17 8335 toShortString(b, false, true, true, false); 18 8336 b.append(" }"); 19 8337 20 8338 return b.toString(); 21 8339 } 22 8340 23 8341 /** @hide */ 24 8342 public String toInsecureStringWithClip() { 25 8343 StringBuilder b = new StringBuilder(128); 26 8344 27 8345 b.append("Intent { "); 28 8346 toShortString(b, false, true, true, true); 29 8347 b.append(" }"); 30 8348 31 8349 return b.toString(); 32 8350 } 33 8351 34 8352 /** @hide */ 35 8353 public String toShortString(boolean secure, boolean comp, boolean extras, boolean clip) { 36 8354 StringBuilder b = new StringBuilder(128); 37 8355 toShortString(b, secure, comp, extras, clip); 38 8356 return b.toString(); 39 8357 } 40 8358 41 8359 /** @hide */ 42 8360 public void toShortString(StringBuilder b, boolean secure, boolean comp, boolean extras, 43 8361 boolean clip) { 44 8362 boolean first = true; 45 8363 if (mAction != null) { 46 8364 b.append("act=").append(mAction); 47 8365 first = false; 48 8366 } 49 8367 if (mCategories != null) { 50 8368 if (!first) { 51 8369 b.append(' '); 52 8370 } 53 8371 first = false; 54 8372 b.append("cat=["); 55 8373 for (int i=0; i<mCategories.size(); i++) { 56 8374 if (i > 0) b.append(','); 57 8375 b.append(mCategories.valueAt(i)); 58 8376 } 59 8377 b.append("]"); 60 8378 } 61 8379 if (mData != null) { 62 8380 if (!first) { 63 8381 b.append(' '); 64 8382 } 65 8383 first = false; 66 8384 b.append("dat="); 67 8385 if (secure) { 68 8386 b.append(mData.toSafeString()); 69 8387 } else { 70 8388 b.append(mData); 71 8389 } 72 8390 } 73 8391 if (mType != null) { 74 8392 if (!first) { 75 8393 b.append(' '); 76 8394 } 77 8395 first = false; 78 8396 b.append("typ=").append(mType); 79 8397 } 80 8398 if (mFlags != 0) { 81 8399 if (!first) { 82 8400 b.append(' '); 83 8401 } 84 8402 first = false; 85 8403 b.append("flg=0x").append(Integer.toHexString(mFlags)); 86 8404 } 87 8405 if (mPackage != null) { 88 8406 if (!first) { 89 8407 b.append(' '); 90 8408 } 91 8409 first = false; 92 8410 b.append("pkg=").append(mPackage); 93 8411 } 94 8412 if (comp && mComponent != null) { 95 8413 if (!first) { 96 8414 b.append(' '); 97 8415 } 98 8416 first = false; 99 8417 b.append("cmp=").append(mComponent.flattenToShortString()); 100 8418 } 101 8419 if (mSourceBounds != null) { 102 8420 if (!first) { 103 8421 b.append(' '); 104 8422 } 105 8423 first = false; 106 8424 b.append("bnds=").append(mSourceBounds.toShortString()); 107 8425 } 108 8426 if (mClipData != null) { 109 8427 if (!first) { 110 8428 b.append(' '); 111 8429 } 112 8430 b.append("clip={"); 113 8431 if (clip) { 114 8432 mClipData.toShortString(b); 115 8433 } else { 116 8434 if (mClipData.getDescription() != null) { 117 8435 first = !mClipData.getDescription().toShortStringTypesOnly(b); 118 8436 } else { 119 8437 first = true; 120 8438 } 121 8439 mClipData.toShortStringShortItems(b, first); 122 8440 } 123 8441 first = false; 124 8442 b.append('}'); 125 8443 } 126 8444 if (extras && mExtras != null) { 127 8445 if (!first) { 128 8446 b.append(' '); 129 8447 } 130 8448 first = false; 131 8449 b.append("(has extras)"); 132 8450 } 133 8451 if (mContentUserHint != UserHandle.USER_CURRENT) { 134 8452 if (!first) { 135 8453 b.append(' '); 136 8454 } 137 8455 first = false; 138 8456 b.append("u=").append(mContentUserHint); 139 8457 } 140 8458 if (mSelector != null) { 141 8459 b.append(" sel="); 142 8460 mSelector.toShortString(b, secure, comp, extras, clip); 143 8461 b.append("}"); 144 8462 } 145 8463 }
无参toUri，被废弃，等同于toUri(0)
1 8465 /** 2 8466 * Call {@link #toUri} with 0 flags. 3 8467 * @deprecated Use {@link #toUri} instead. 4 8468 */ 5 8469 @Deprecated 6 8470 public String toURI() { 7 8471 return toUri(0); 8 8472 }
toUriInnter函数把Intent的几个私有变量里的值encode起来
1 8586 private void toUriInner(StringBuilder uri, String scheme, String defAction, 2 8587 String defPackage, int flags) { 3 8588 if (scheme != null) { 4 8589 uri.append("scheme=").append(scheme).append(';'); 5 8590 } 6 8591 if (mAction != null && !mAction.equals(defAction)) { 7 8592 uri.append("action=").append(Uri.encode(mAction)).append(';'); 8 8593 } 9 8594 if (mCategories != null) { 10 8595 for (int i=0; i<mCategories.size(); i++) { 11 8596 uri.append("category=").append(Uri.encode(mCategories.valueAt(i))).append(';'); 12 8597 } 13 8598 } 14 8599 if (mType != null) { 15 8600 uri.append("type=").append(Uri.encode(mType, "/")).append(';'); 16 8601 } 17 8602 if (mFlags != 0) { 18 8603 uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';'); 19 8604 } 20 8605 if (mPackage != null && !mPackage.equals(defPackage)) { 21 8606 uri.append("package=").append(Uri.encode(mPackage)).append(';'); 22 8607 } 23 8608 if (mComponent != null) { 24 8609 uri.append("component=").append(Uri.encode( 25 8610 mComponent.flattenToShortString(), "/")).append(';'); 26 8611 } 27 8612 if (mSourceBounds != null) { 28 8613 uri.append("sourceBounds=") 29 8614 .append(Uri.encode(mSourceBounds.flattenToString())) 30 8615 .append(';'); 31 8616 } 32 8617 if (mExtras != null) { 33 8618 for (String key : mExtras.keySet()) { 34 8619 final Object value = mExtras.get(key); 35 8620 char entryType = 36 8621 value instanceof String ? 'S' : 37 8622 value instanceof Boolean ? 'B' : 38 8623 value instanceof Byte ? 'b' : 39 8624 value instanceof Character ? 'c' : 40 8625 value instanceof Double ? 'd' : 41 8626 value instanceof Float ? 'f' : 42 8627 value instanceof Integer ? 'i' : 43 8628 value instanceof Long ? 'l' : 44 8629 value instanceof Short ? 's' : 45 8630 '\0'; 46 8631 47 8632 if (entryType != '\0') { 48 8633 uri.append(entryType); 49 8634 uri.append('.'); 50 8635 uri.append(Uri.encode(key)); 51 8636 uri.append('='); 52 8637 uri.append(Uri.encode(value.toString())); 53 8638 uri.append(';'); 54 8639 } 55 8640 } 56 8641 } 57 8642 }
toUriFragment把Intet编码为“#Intent;***end”
1 8565 private void toUriFragment(StringBuilder uri, String scheme, String defAction, 2 8566 String defPackage, int flags) { 3 8567 StringBuilder frag = new StringBuilder(128); 4 8568 5 8569 toUriInner(frag, scheme, defAction, defPackage, flags); 6 8570 if (mSelector != null) { 7 8571 frag.append("SEL;"); 8 8572 // Note that for now we are not going to try to handle the 9 8573 // data part; not clear how to represent this as a URI, and 10 8574 // not much utility in it. 11 8575 mSelector.toUriInner(frag, mSelector.mData != null ? mSelector.mData.getScheme() : null, 12 8576 null, null, flags); 13 8577 } 14 8578 15 8579 if (frag.length() > 0) { 16 8580 uri.append("#Intent;"); 17 8581 uri.append(frag); 18 8582 uri.append("end"); 19 8583 } 20 8584 }
toUri把一个Intent转换为Uri编码；flag决定转为为app模式的（前缀为android-app://）还是intetn模式的（前缀为intent）
1 8474 /** 2 8475 * Convert this Intent into a String holding a URI representation of it. 3 8476 * The returned URI string has been properly URI encoded, so it can be 4 8477 * used with {@link Uri#parse Uri.parse(String)}. The URI contains the 5 8478 * Intent's data as the base URI, with an additional fragment describing 6 8479 * the action, categories, type, flags, package, component, and extras. 7 8480 * 8 8481 * <p>You can convert the returned string back to an Intent with 9 8482 * {@link #getIntent}. 10 8483 * 11 8484 * @param flags Additional operating flags. Either 0, 12 8485 * {@link #URI_INTENT_SCHEME}, or {@link #URI_ANDROID_APP_SCHEME}. 13 8486 * 14 8487 * @return Returns a URI encoding URI string describing the entire contents 15 8488 * of the Intent. 16 8489 */ 17 8490 public String toUri(int flags) { 18 8491 StringBuilder uri = new StringBuilder(128); 19 8492 if ((flags&URI_ANDROID_APP_SCHEME) != 0) { 20 8493 if (mPackage == null) { 21 8494 throw new IllegalArgumentException( 22 8495 "Intent must include an explicit package name to build an android-app: " 23 8496 + this); 24 8497 } 25 8498 uri.append("android-app://"); 26 8499 uri.append(mPackage); 27 8500 String scheme = null; 28 8501 if (mData != null) { 29 8502 scheme = mData.getScheme(); 30 8503 if (scheme != null) { 31 8504 uri.append('/'); 32 8505 uri.append(scheme); 33 8506 String authority = mData.getEncodedAuthority(); 34 8507 if (authority != null) { 35 8508 uri.append('/'); 36 8509 uri.append(authority); 37 8510 String path = mData.getEncodedPath(); 38 8511 if (path != null) { 39 8512 uri.append(path); 40 8513 } 41 8514 String queryParams = mData.getEncodedQuery(); 42 8515 if (queryParams != null) { 43 8516 uri.append('?'); 44 8517 uri.append(queryParams); 45 8518 } 46 8519 String fragment = mData.getEncodedFragment(); 47 8520 if (fragment != null) { 48 8521 uri.append('#'); 49 8522 uri.append(fragment); 50 8523 } 51 8524 } 52 8525 } 53 8526 } 54 8527 toUriFragment(uri, null, scheme == null ? Intent.ACTION_MAIN : Intent.ACTION_VIEW, 55 8528 mPackage, flags); 56 8529 return uri.toString(); 57 8530 } 58 8531 String scheme = null; 59 8532 if (mData != null) { 60 8533 String data = mData.toString(); 61 8534 if ((flags&URI_INTENT_SCHEME) != 0) { 62 8535 final int N = data.length(); 63 8536 for (int i=0; i<N; i++) { 64 8537 char c = data.charAt(i); 65 8538 if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') 66 8539 || c == '.' || c == '-') { 67 8540 continue; 68 8541 } 69 8542 if (c == ':' && i > 0) { 70 8543 // Valid scheme. 71 8544 scheme = data.substring(0, i); 72 8545 uri.append("intent:"); 73 8546 data = data.substring(i+1); 74 8547 break; 75 8548 } 76 8549 77 8550 // No scheme. 78 8551 break; 79 8552 } 80 8553 } 81 8554 uri.append(data); 82 8555 83 8556 } else if ((flags&URI_INTENT_SCHEME) != 0) { 84 8557 uri.append("intent:"); 85 8558 } 86 8559 87 8560 toUriFragment(uri, scheme, Intent.ACTION_VIEW, null, flags); 88 8561 89 8562 return uri.toString(); 90 8563 }
下面是Parcelabel接口
describeContents返回的是返回的是mExtras的describeContents
1 8644 public int describeContents() { 2 8645 return (mExtras != null) ? mExtras.describeContents() : 0; 3 8646 }
writeToParcel写入关键 私有变量
1 8648 public void writeToParcel(Parcel out, int flags) { 2 8649 out.writeString(mAction); 3 8650 Uri.writeToParcel(out, mData); 4 8651 out.writeString(mType); 5 8652 out.writeInt(mFlags); 6 8653 out.writeString(mPackage); 7 8654 ComponentName.writeToParcel(mComponent, out); 8 8655 9 8656 if (mSourceBounds != null) { 10 8657 out.writeInt(1); 11 8658 mSourceBounds.writeToParcel(out, flags); 12 8659 } else { 13 8660 out.writeInt(0); 14 8661 } 15 8662 16 8663 if (mCategories != null) { 17 8664 final int N = mCategories.size(); 18 8665 out.writeInt(N); 19 8666 for (int i=0; i<N; i++) { 20 8667 out.writeString(mCategories.valueAt(i)); 21 8668 } 22 8669 } else { 23 8670 out.writeInt(0); 24 8671 } 25 8672 26 8673 if (mSelector != null) { 27 8674 out.writeInt(1); 28 8675 mSelector.writeToParcel(out, flags); 29 8676 } else { 30 8677 out.writeInt(0); 31 8678 } 32 8679 33 8680 if (mClipData != null) { 34 8681 out.writeInt(1); 35 8682 mClipData.writeToParcel(out, flags); 36 8683 } else { 37 8684 out.writeInt(0); 38 8685 } 39 8686 out.writeInt(mContentUserHint); 40 8687 out.writeBundle(mExtras); 41 8688 }
CREATOR接口如下
1 8690 public static final Parcelable.Creator<Intent> CREATOR 2 8691 = new Parcelable.Creator<Intent>() { 3 8692 public Intent createFromParcel(Parcel in) { 4 8693 return new Intent(in); 5 8694 } 6 8695 public Intent[] newArray(int size) { 7 8696 return new Intent[size]; 8 8697 } 9 8698 }
以Parcel为参数的构造函数是私有的，调用readFromParcel
1 8700 /** @hide */ 2 8701 protected Intent(Parcel in) { 3 8702 readFromParcel(in); 4 8703 } 5 8704 6 8705 public void readFromParcel(Parcel in) { 7 8706 setAction(in.readString()); 8 8707 mData = Uri.CREATOR.createFromParcel(in); 9 8708 mType = in.readString(); 10 8709 mFlags = in.readInt(); 11 8710 mPackage = in.readString(); 12 8711 mComponent = ComponentName.readFromParcel(in); 13 8712 14 8713 if (in.readInt() != 0) { 15 8714 mSourceBounds = Rect.CREATOR.createFromParcel(in); 16 8715 } 17 8716 18 8717 int N = in.readInt(); 19 8718 if (N > 0) { 20 8719 mCategories = new ArraySet<String>(); 21 8720 int i; 22 8721 for (i=0; i<N; i++) { 23 8722 mCategories.add(in.readString().intern()); 24 8723 } 25 8724 } else { 26 8725 mCategories = null; 27 8726 } 28 8727 29 8728 if (in.readInt() != 0) { 30 8729 mSelector = new Intent(in); 31 8730 } 32 8731 33 8732 if (in.readInt() != 0) { 34 8733 mClipData = new ClipData(in); 35 8734 } 36 8735 mContentUserHint = in.readInt(); 37 8736 mExtras = in.readBundle(); 38 8737 }
parseIntetn会从xml里得到信息，new一个Intent并返回
1 8738 2 8739 /** 3 8740 * Parses the "intent" element (and its children) from XML and instantiates 4 8741 * an Intent object. The given XML parser should be located at the tag 5 8742 * where parsing should start (often named "intent"), from which the 6 8743 * basic action, data, type, and package and class name will be 7 8744 * retrieved. The function will then parse in to any child elements, 8 8745 * looking for <category android:name="xxx"> tags to add categories and 9 8746 * <extra android:name="xxx" android:value="yyy"> to attach extra data 10 8747 * to the intent. 11 8748 * 12 8749 * @param resources The Resources to use when inflating resources. 13 8750 * @param parser The XML parser pointing at an "intent" tag. 14 8751 * @param attrs The AttributeSet interface for retrieving extended 15 8752 * attribute data at the current <var>parser</var> location. 16 8753 * @return An Intent object matching the XML data. 17 8754 * @throws XmlPullParserException If there was an XML parsing error. 18 8755 * @throws IOException If there was an I/O error. 19 8756 */ 20 8757 public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs) 21 8758 throws XmlPullParserException, IOException { 22 8759 Intent intent = new Intent(); 23 8760 24 8761 TypedArray sa = resources.obtainAttributes(attrs, 25 8762 com.android.internal.R.styleable.Intent); 26 8763 27 8764 intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action)); 28 8765 29 8766 String data = sa.getString(com.android.internal.R.styleable.Intent_data); 30 8767 String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType); 31 8768 intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType); 32 8769 33 8770 String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage); 34 8771 String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass); 35 8772 if (packageName != null && className != null) { 36 8773 intent.setComponent(new ComponentName(packageName, className)); 37 8774 } 38 8775 39 8776 sa.recycle(); 40 8777 41 8778 int outerDepth = parser.getDepth(); 42 8779 int type; 43 8780 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 44 8781 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 45 8782 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 46 8783 continue; 47 8784 } 48 8785 49 8786 String nodeName = parser.getName(); 50 8787 if (nodeName.equals(TAG_CATEGORIES)) { 51 8788 sa = resources.obtainAttributes(attrs, 52 8789 com.android.internal.R.styleable.IntentCategory); 53 8790 String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name); 54 8791 sa.recycle(); 55 8792 56 8793 if (cat != null) { 57 8794 intent.addCategory(cat); 58 8795 } 59 8796 XmlUtils.skipCurrentTag(parser); 60 8797 61 8798 } else if (nodeName.equals(TAG_EXTRA)) { 62 8799 if (intent.mExtras == null) { 63 8800 intent.mExtras = new Bundle(); 64 8801 } 65 8802 resources.parseBundleExtra(TAG_EXTRA, attrs, intent.mExtras); 66 8803 XmlUtils.skipCurrentTag(parser); 67 8804 68 8805 } else { 69 8806 XmlUtils.skipCurrentTag(parser); 70 8807 } 71 8808 } 72 8809 73 8810 return intent; 74 8811 }
saveToXml,把Intent的内容写如到xml里
1 8813 /** @hide */ 2 8814 public void saveToXml(XmlSerializer out) throws IOException { 3 8815 if (mAction != null) { 4 8816 out.attribute(null, ATTR_ACTION, mAction); 5 8817 } 6 8818 if (mData != null) { 7 8819 out.attribute(null, ATTR_DATA, mData.toString()); 8 8820 } 9 8821 if (mType != null) { 10 8822 out.attribute(null, ATTR_TYPE, mType); 11 8823 } 12 8824 if (mComponent != null) { 13 8825 out.attribute(null, ATTR_COMPONENT, mComponent.flattenToShortString()); 14 8826 } 15 8827 out.attribute(null, ATTR_FLAGS, Integer.toHexString(getFlags())); 16 8828 17 8829 if (mCategories != null) { 18 8830 out.startTag(null, TAG_CATEGORIES); 19 8831 for (int categoryNdx = mCategories.size() - 1; categoryNdx >= 0; --categoryNdx) { 20 8832 out.attribute(null, ATTR_CATEGORY, mCategories.valueAt(categoryNdx)); 21 8833 } 22 8834 out.endTag(null, TAG_CATEGORIES); 23 8835 } 24 8836 }
restoreFromXml则从xml里读取一系列的attribute
1 8838 /** @hide */ 2 8839 public static Intent restoreFromXml(XmlPullParser in) throws IOException, 3 8840 XmlPullParserException { 4 8841 Intent intent = new Intent(); 5 8842 final int outerDepth = in.getDepth(); 6 8843 7 8844 int attrCount = in.getAttributeCount(); 8 8845 for (int attrNdx = attrCount - 1; attrNdx >= 0; --attrNdx) { 9 8846 final String attrName = in.getAttributeName(attrNdx); 10 8847 final String attrValue = in.getAttributeValue(attrNdx); 11 8848 if (ATTR_ACTION.equals(attrName)) { 12 8849 intent.setAction(attrValue); 13 8850 } else if (ATTR_DATA.equals(attrName)) { 14 8851 intent.setData(Uri.parse(attrValue)); 15 8852 } else if (ATTR_TYPE.equals(attrName)) { 16 8853 intent.setType(attrValue); 17 8854 } else if (ATTR_COMPONENT.equals(attrName)) { 18 8855 intent.setComponent(ComponentName.unflattenFromString(attrValue)); 19 8856 } else if (ATTR_FLAGS.equals(attrName)) { 20 8857 intent.setFlags(Integer.parseInt(attrValue, 16)); 21 8858 } else { 22 8859 Log.e("Intent", "restoreFromXml: unknown attribute=" + attrName); 23 8860 } 24 8861 } 25 8862 26 8863 int event; 27 8864 String name; 28 8865 while (((event = in.next()) != XmlPullParser.END_DOCUMENT) && 29 8866 (event != XmlPullParser.END_TAG || in.getDepth() < outerDepth)) { 30 8867 if (event == XmlPullParser.START_TAG) { 31 8868 name = in.getName(); 32 8869 if (TAG_CATEGORIES.equals(name)) { 33 8870 attrCount = in.getAttributeCount(); 34 8871 for (int attrNdx = attrCount - 1; attrNdx >= 0; --attrNdx) { 35 8872 intent.addCategory(in.getAttributeValue(attrNdx)); 36 8873 } 37 8874 } else { 38 8875 Log.w("Intent", "restoreFromXml: unknown name=" + name); 39 8876 XmlUtils.skipCurrentTag(in); 40 8877 } 41 8878 } 42 8879 } 43 8880 44 8881 return intent; 45 8882 }
normalizedMimeType把Mime去掉空格，小写，去掉内容类型参数
1 8884 /** 2 8885 * Normalize a MIME data type. 3 8886 * 4 8887 * <p>A normalized MIME type has white-space trimmed, 5 8888 * content-type parameters removed, and is lower-case. 6 8889 * This aligns the type with Android best practices for 7 8890 * intent filtering. 8 8891 * 9 8892 * <p>For example, "text/plain; charset=utf-8" becomes "text/plain". 10 8893 * "text/x-vCard" becomes "text/x-vcard". 11 8894 * 12 8895 * <p>All MIME types received from outside Android (such as user input, 13 8896 * or external sources like Bluetooth, NFC, or the Internet) should 14 8897 * be normalized before they are used to create an Intent. 15 8898 * 16 8899 * @param type MIME data type to normalize 17 8900 * @return normalized MIME data type, or null if the input was null 18 8901 * @see #setType 19 8902 * @see #setTypeAndNormalize 20 8903 */ 21 8904 public static String normalizeMimeType(String type) { 22 8905 if (type == null) { 23 8906 return null; 24 8907 } 25 8908 26 8909 type = type.trim().toLowerCase(Locale.ROOT); 27 8910 28 8911 final int semicolonIndex = type.indexOf(';'); 29 8912 if (semicolonIndex != -1) { 30 8913 type = type.substring(0, semicolonIndex); 31 8914 } 32 8915 return type; 33 8916 }
prepareLeaveProcess为Intent离开当前进程做准备，修正可能暴露的Uri；prepareToEnterProcess针对当前进程UID不是sytem的情况，调用fixUris，并设置mContentUserHint
1 8918 /** 2 8919 * Prepare this {@link Intent} to leave an app process. 3 8920 * 4 8921 * @hide 5 8922 */ 6 8923 public void prepareToLeaveProcess(Context context) { 7 8924 final boolean leavingPackage = (mComponent == null) 8 8925 || !Objects.equals(mComponent.getPackageName(), context.getPackageName()); 9 8926 prepareToLeaveProcess(leavingPackage); 10 8927 } 11 8928 12 8929 /** 13 8930 * Prepare this {@link Intent} to leave an app process. 14 8931 * 15 8932 * @hide 16 8933 */ 17 8934 public void prepareToLeaveProcess(boolean leavingPackage) { 18 8935 setAllowFds(false); 19 8936 20 8937 if (mSelector != null) { 21 8938 mSelector.prepareToLeaveProcess(leavingPackage); 22 8939 } 23 8940 if (mClipData != null) { 24 8941 mClipData.prepareToLeaveProcess(leavingPackage); 25 8942 } 26 8943 27 8944 if (mAction != null && mData != null && StrictMode.vmFileUriExposureEnabled() 28 8945 && leavingPackage) { 29 8946 switch (mAction) { 30 8947 case ACTION_MEDIA_REMOVED: 31 8948 case ACTION_MEDIA_UNMOUNTED: 32 8949 case ACTION_MEDIA_CHECKING: 33 8950 case ACTION_MEDIA_NOFS: 34 8951 case ACTION_MEDIA_MOUNTED: 35 8952 case ACTION_MEDIA_SHARED: 36 8953 case ACTION_MEDIA_UNSHARED: 37 8954 case ACTION_MEDIA_BAD_REMOVAL: 38 8955 case ACTION_MEDIA_UNMOUNTABLE: 39 8956 case ACTION_MEDIA_EJECT: 40 8957 case ACTION_MEDIA_SCANNER_STARTED: 41 8958 case ACTION_MEDIA_SCANNER_FINISHED: 42 8959 case ACTION_MEDIA_SCANNER_SCAN_FILE: 43 8960 case ACTION_PACKAGE_NEEDS_VERIFICATION: 44 8961 case ACTION_PACKAGE_VERIFIED: 45 8962 // Ignore legacy actions 46 8963 break; 47 8964 default: 48 8965 mData.checkFileUriExposed("Intent.getData()"); 49 8966 } 50 8967 } 51 8968 } 52 8969 53 8970 /** 54 8971 * @hide 55 8972 */ 56 8973 public void prepareToEnterProcess() { 57 8974 // We just entered destination process, so we should be able to read all 58 8975 // parcelables inside. 59 8976 setDefusable(true); 60 8977 61 8978 if (mSelector != null) { 62 8979 mSelector.prepareToEnterProcess(); 63 8980 } 64 8981 if (mClipData != null) { 65 8982 mClipData.prepareToEnterProcess(); 66 8983 } 67 8984 68 8985 if (mContentUserHint != UserHandle.USER_CURRENT) { 69 8986 if (UserHandle.getAppId(Process.myUid()) != Process.SYSTEM_UID) { 70 8987 fixUris(mContentUserHint); 71 8988 mContentUserHint = UserHandle.USER_CURRENT; 72 8989 } 73 8990 } 74 8991 }
fixUris讲可能的UserId加进Uri里
1 8993 /** 2 8994 * @hide 3 8995 */ 4 8996 public void fixUris(int contentUserHint) { 5 8997 Uri data = getData(); 6 8998 if (data != null) { 7 8999 mData = maybeAddUserId(data, contentUserHint); 8 9000 } 9 9001 if (mClipData != null) { 10 9002 mClipData.fixUris(contentUserHint); 11 9003 } 12 9004 String action = getAction(); 13 9005 if (ACTION_SEND.equals(action)) { 14 9006 final Uri stream = getParcelableExtra(EXTRA_STREAM); 15 9007 if (stream != null) { 16 9008 putExtra(EXTRA_STREAM, maybeAddUserId(stream, contentUserHint)); 17 9009 } 18 9010 } else if (ACTION_SEND_MULTIPLE.equals(action)) { 19 9011 final ArrayList<Uri> streams = getParcelableArrayListExtra(EXTRA_STREAM); 20 9012 if (streams != null) { 21 9013 ArrayList<Uri> newStreams = new ArrayList<Uri>(); 22 9014 for (int i = 0; i < streams.size(); i++) { 23 9015 newStreams.add(maybeAddUserId(streams.get(i), contentUserHint)); 24 9016 } 25 9017 putParcelableArrayListExtra(EXTRA_STREAM, newStreams); 26 9018 } 27 9019 } else if (MediaStore.ACTION_IMAGE_CAPTURE.equals(action) 28 9020 || MediaStore.ACTION_IMAGE_CAPTURE_SECURE.equals(action) 29 9021 || MediaStore.ACTION_VIDEO_CAPTURE.equals(action)) { 30 9022 final Uri output = getParcelableExtra(MediaStore.EXTRA_OUTPUT); 31 9023 if (output != null) { 32 9024 putExtra(MediaStore.EXTRA_OUTPUT, maybeAddUserId(output, contentUserHint)); 33 9025 } 34 9026 } 35 9027 }
migrateExtraStreamToClipData从Steam构建ClipData
1 9029 /** 2 9030 * Migrate any {@link #EXTRA_STREAM} in {@link #ACTION_SEND} and 3 9031 * {@link #ACTION_SEND_MULTIPLE} to {@link ClipData}. Also inspects nested 4 9032 * intents in {@link #ACTION_CHOOSER}. 5 9033 * 6 9034 * @return Whether any contents were migrated. 7 9035 * @hide 8 9036 */ 9 9037 public boolean migrateExtraStreamToClipData() { 10 9038 // Refuse to touch if extras already parcelled 11 9039 if (mExtras != null && mExtras.isParcelled()) return false; 12 9040 13 9041 // Bail when someone already gave us ClipData 14 9042 if (getClipData() != null) return false; 15 9043 16 9044 final String action = getAction(); 17 9045 if (ACTION_CHOOSER.equals(action)) { 18 9046 // Inspect contained intents to see if we need to migrate extras. We 19 9047 // don't promote ClipData to the parent, since ChooserActivity will 20 9048 // already start the picked item as the caller, and we can't combine 21 9049 // the flags in a safe way. 22 9050 23 9051 boolean migrated = false; 24 9052 try { 25 9053 final Intent intent = getParcelableExtra(EXTRA_INTENT); 26 9054 if (intent != null) { 27 9055 migrated |= intent.migrateExtraStreamToClipData(); 28 9056 } 29 9057 } catch (ClassCastException e) { 30 9058 } 31 9059 try { 32 9060 final Parcelable[] intents = getParcelableArrayExtra(EXTRA_INITIAL_INTENTS); 33 9061 if (intents != null) { 34 9062 for (int i = 0; i < intents.length; i++) { 35 9063 final Intent intent = (Intent) intents[i]; 36 9064 if (intent != null) { 37 9065 migrated |= intent.migrateExtraStreamToClipData(); 38 9066 } 39 9067 } 40 9068 } 41 9069 } catch (ClassCastException e) { 42 9070 } 43 9071 return migrated; 44 9072 45 9073 } else if (ACTION_SEND.equals(action)) { 46 9074 try { 47 9075 final Uri stream = getParcelableExtra(EXTRA_STREAM); 48 9076 final CharSequence text = getCharSequenceExtra(EXTRA_TEXT); 49 9077 final String htmlText = getStringExtra(EXTRA_HTML_TEXT); 50 9078 if (stream != null || text != null || htmlText != null) { 51 9079 final ClipData clipData = new ClipData( 52 9080 null, new String[] { getType() }, 53 9081 new ClipData.Item(text, htmlText, null, stream)); 54 9082 setClipData(clipData); 55 9083 addFlags(FLAG_GRANT_READ_URI_PERMISSION); 56 9084 return true; 57 9085 } 58 9086 } catch (ClassCastException e) { 59 9087 } 60 9088 61 9089 } else if (ACTION_SEND_MULTIPLE.equals(action)) { 62 9090 try { 63 9091 final ArrayList<Uri> streams = getParcelableArrayListExtra(EXTRA_STREAM); 64 9092 final ArrayList<CharSequence> texts = getCharSequenceArrayListExtra(EXTRA_TEXT); 65 9093 final ArrayList<String> htmlTexts = getStringArrayListExtra(EXTRA_HTML_TEXT); 66 9094 int num = -1; 67 9095 if (streams != null) { 68 9096 num = streams.size(); 69 9097 } 70 9098 if (texts != null) { 71 9099 if (num >= 0 && num != texts.size()) { 72 9100 // Wha...! F- you. 73 9101 return false; 74 9102 } 75 9103 num = texts.size(); 76 9104 } 77 9105 if (htmlTexts != null) { 78 9106 if (num >= 0 && num != htmlTexts.size()) { 79 9107 // Wha...! F- you. 80 9108 return false; 81 9109 } 82 9110 num = htmlTexts.size(); 83 9111 } 84 9112 if (num > 0) { 85 9113 final ClipData clipData = new ClipData( 86 9114 null, new String[] { getType() }, 87 9115 makeClipItem(streams, texts, htmlTexts, 0)); 88 9116 89 9117 for (int i = 1; i < num; i++) { 90 9118 clipData.addItem(makeClipItem(streams, texts, htmlTexts, i)); 91 9119 } 92 9120 93 9121 setClipData(clipData); 94 9122 addFlags(FLAG_GRANT_READ_URI_PERMISSION); 95 9123 return true; 96 9124 } 97 9125 } catch (ClassCastException e) { 98 9126 } 99 9127 } else if (MediaStore.ACTION_IMAGE_CAPTURE.equals(action) 100 9128 || MediaStore.ACTION_IMAGE_CAPTURE_SECURE.equals(action) 101 9129 || MediaStore.ACTION_VIDEO_CAPTURE.equals(action)) { 102 9130 final Uri output; 103 9131 try { 104 9132 output = getParcelableExtra(MediaStore.EXTRA_OUTPUT); 105 9133 } catch (ClassCastException e) { 106 9134 return false; 107 9135 } 108 9136 if (output != null) { 109 9137 setClipData(ClipData.newRawUri("", output)); 110 9138 addFlags(FLAG_GRANT_WRITE_URI_PERMISSION|FLAG_GRANT_READ_URI_PERMISSION); 111 9139 return true; 112 9140 } 113 9141 } 114 9142 115 9143 return false; 116 9144 } 117 9145
makeClipItem从stream，text，htmltext里构建ClipData
1 9146 private static ClipData.Item makeClipItem(ArrayList<Uri> streams, ArrayList<CharSequence> texts, 2 9147 ArrayList<String> htmlTexts, int which) { 3 9148 Uri uri = streams != null ? streams.get(which) : null; 4 9149 CharSequence text = texts != null ? texts.get(which) : null; 5 9150 String htmlText = htmlTexts != null ? htmlTexts.get(which) : null; 6 9151 return new ClipData.Item(text, htmlText, null, uri); 7 9152 }
isDocument判断flag是否为FALG_ACTIVITY_NEW_DOCUMENT
1 9154 /** @hide */ 2 9155 public boolean isDocument() { 3 9156 return (mFlags & FLAG_ACTIVITY_NEW_DOCUMENT) == FLAG_ACTIVITY_NEW_DOCUMENT; 4 9157 } 5 9158}
