Android添加系统级顶层窗口 和 WindowManager添加view的动画问题
当Dialog有编辑框时如果选择会弹菜单窗口就不要用
Context applicationContext = mainActivity.getApplicationContext(); AlertDialog.Builder dlgBuilder = new AlertDialog.Builder(applicationContext); AlertDialog dialog = dlgBuilder.create(); dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
public class Dialog implements DialogInterface, Window.Callback, KeyEvent.Callback, OnCreateContextMenuListener
constructor
/** * Create a Dialog window that uses the default dialog frame style. * * @param context The Context the Dialog is to run it. In particular, it * uses the window manager and theme in this context to * present its UI. */ public Dialog(Context context) { this(context, 0, true); } /** * Create a Dialog window that uses a custom dialog style. * * @param context The Context in which the Dialog should run. In particular, it * uses the window manager and theme from this context to * present its UI. * @param theme A style resource describing the theme to use for the * window. See <a href="{@docRoot}guide/topics/resources/available-resources.html#stylesandthemes">Style * and Theme Resources</a> for more information about defining and using * styles. This theme is applied on top of the current theme in * <var>context</var>. If 0, the default dialog theme will be used. */ public Dialog(Context context, int theme) { this(context, theme, true); } Dialog(Context context, int theme, boolean createContextThemeWrapper) { if (createContextThemeWrapper) { if (theme == 0) { TypedValue outValue = new TypedValue(); context.getTheme().resolveAttribute(com.android.internal.R.attr.dialogTheme, outValue, true); theme = outValue.resourceId; } mContext = new ContextThemeWrapper(context, theme); } else { mContext = context; } mWindowManager = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); Window w = PolicyManager.makeNewWindow(mContext); mWindow = w; w.setCallback(this); w.setWindowManager(mWindowManager, null, null); w.setGravity(Gravity.CENTER); mListenersHandler = new ListenersHandler(this); }
show
/** * Start the dialog and display it on screen. The window is placed in the * application layer and opaque. Note that you should not override this * method to do initialization when the dialog is shown, instead implement * that in {@link #onStart}. */ public void show() { if (mShowing) { if (mDecor != null) { if (mWindow.hasFeature(Window.FEATURE_ACTION_BAR)) { mWindow.invalidatePanelMenu(Window.FEATURE_ACTION_BAR); } mDecor.setVisibility(View.VISIBLE); } return; } mCanceled = false; if (!mCreated) { dispatchOnCreate(null); } onStart(); mDecor = mWindow.getDecorView(); if (mActionBar == null && mWindow.hasFeature(Window.FEATURE_ACTION_BAR)) { final ApplicationInfo info = mContext.getApplicationInfo(); mWindow.setDefaultIcon(info.icon); mWindow.setDefaultLogo(info.logo); mActionBar = new ActionBarImpl(this); } WindowManager.LayoutParams l = mWindow.getAttributes(); if ((l.softInputMode & WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION) == 0) { WindowManager.LayoutParams nl = new WindowManager.LayoutParams(); nl.copyFrom(l); nl.softInputMode |= WindowManager.LayoutParams.SOFT_INPUT_IS_FORWARD_NAVIGATION; l = nl; } try { mWindowManager.addView(mDecor, l); mShowing = true; sendShowMessage(); } finally { } }
AndroidRuntime FATAL EXCEPTION
12-28 13:21:19.631: E/AndroidRuntime(8611): FATAL EXCEPTION: main
12-28 13:21:19.631: E/AndroidRuntime(8611): android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.view.ViewRootImpl.setView(ViewRootImpl.java:571)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:246)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.widget.PopupWindow.invokePopup(PopupWindow.java:993)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.widget.PopupWindow.showAtLocation(PopupWindow.java:847)
12-28 13:21:19.631: E/AndroidRuntime(8611): at com.android.internal.policy.impl.PhoneWindow$DecorView$1.run(PhoneWindow.java:2285)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.os.Handler.handleCallback(Handler.java:725)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.os.Handler.dispatchMessage(Handler.java:92)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.os.Looper.loop(Looper.java:137)
12-28 13:21:19.631: E/AndroidRuntime(8611): at android.app.ActivityThread.main(ActivityThread.java:5041)
12-28 13:21:19.631: E/AndroidRuntime(8611): at java.lang.reflect.Method.invokeNative(Native Method)
12-28 13:21:19.631: E/AndroidRuntime(8611): at java.lang.reflect.Method.invoke(Method.java:511)
12-28 13:21:19.631: E/AndroidRuntime(8611): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
12-28 13:21:19.631: E/AndroidRuntime(8611): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
12-28 13:21:19.631: E/AndroidRuntime(8611): at dalvik.system.NativeStart.main(Native Method)
<!-- Variant of {@link #Theme_Translucent} that has no title bar and no status bar --> <style name="Theme.Translucent.NoTitleBar.Fullscreen"> <item name="android:windowFullscreen">true</item> </style> <!-- Default theme for activities that don't actually display a UI; that is, they finish themselves before being resumed. --> <style name="Theme.NoDisplay"> <item name="android:windowBackground">@null</item> <item name="android:windowContentOverlay">@null</item> <item name="android:windowIsTranslucent">true</item> <item name="android:windowAnimationStyle">@null</item> <item name="android:windowDisablePreview">true</item> <item name="android:windowNoDisplay">true</item> </style> <!-- Default theme for dialog windows and activities (on API level 10 and lower), which is used by the {@link android.app.Dialog} class. This changes the window to be floating (not fill the entire screen), and puts a frame around its contents. You can set this theme on an activity if you would like to make an activity that looks like a Dialog. --> <style name="Theme.Dialog"> <item name="android:windowFrame">@null</item> <item name="android:windowTitleStyle">@android:style/DialogWindowTitle</item> <item name="android:windowBackground">@android:drawable/panel_background</item> <item name="android:windowIsFloating">true</item> <item name="android:windowContentOverlay">@null</item> <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item> <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item> <item name="android:windowCloseOnTouchOutside">@bool/config_closeDialogWhenTouchOutside</item> <item name="android:windowActionModeOverlay">true</item> <item name="android:colorBackgroundCacheHint">@null</item> <item name="textAppearance">@android:style/TextAppearance</item> <item name="textAppearanceInverse">@android:style/TextAppearance.Inverse</item> <item name="textColorPrimary">@android:color/primary_text_dark</item> <item name="textColorSecondary">@android:color/secondary_text_dark</item> <item name="textColorTertiary">@android:color/tertiary_text_dark</item> <item name="textColorPrimaryInverse">@android:color/primary_text_light</item> <item name="textColorSecondaryInverse">@android:color/secondary_text_light</item> <item name="textColorTertiaryInverse">@android:color/tertiary_text_light</item> <item name="textColorPrimaryDisableOnly">@android:color/primary_text_dark_disable_only</item> <item name="textColorPrimaryInverseDisableOnly">@android:color/primary_text_light_disable_only</item> <item name="textColorPrimaryNoDisable">@android:color/primary_text_dark_nodisable</item> <item name="textColorSecondaryNoDisable">@android:color/secondary_text_dark_nodisable</item> <item name="textColorPrimaryInverseNoDisable">@android:color/primary_text_light_nodisable</item> <item name="textColorSecondaryInverseNoDisable">@android:color/secondary_text_light_nodisable</item> <item name="textColorHint">@android:color/hint_foreground_dark</item> <item name="textColorHintInverse">@android:color/hint_foreground_light</item> <item name="textColorSearchUrl">@android:color/search_url_text</item> <item name="textAppearanceLarge">@android:style/TextAppearance.Large</item> <item name="textAppearanceMedium">@android:style/TextAppearance.Medium</item> <item name="textAppearanceSmall">@android:style/TextAppearance.Small</item> <item name="textAppearanceLargeInverse">@android:style/TextAppearance.Large.Inverse</item> <item name="textAppearanceMediumInverse">@android:style/TextAppearance.Medium.Inverse</item> <item name="textAppearanceSmallInverse">@android:style/TextAppearance.Small.Inverse</item> <item name="listPreferredItemPaddingLeft">10dip</item> <item name="listPreferredItemPaddingRight">10dip</item> <item name="listPreferredItemPaddingStart">10dip</item> <item name="listPreferredItemPaddingEnd">10dip</item> <item name="preferencePanelStyle">@style/PreferencePanel.Dialog</item> </style> <!-- Variant of {@link Theme_Dialog} that does not include a frame (or background). The view hierarchy of the dialog is responsible for drawing all of its pixels. --> <style name="Theme.Dialog.NoFrame"> <item name="windowBackground">@android:color/transparent</item> <item name="android:windowFrame">@null</item> <item name="windowContentOverlay">@null</item> <item name="android:windowAnimationStyle">@null</item> <item name="android:backgroundDimEnabled">false</item> <item name="android:windowIsTranslucent">true</item> <item name="android:windowNoTitle">true</item> <item name="android:windowCloseOnTouchOutside">false</item> </style> <!-- Default theme for alert dialog windows (on API level 10 and lower), which is used by the {@link android.app.AlertDialog} class. This is basically a dialog but sets the background to empty so it can do two-tone backgrounds. --> <style name="Theme.Dialog.Alert"> <item name="windowBackground">@android:color/transparent</item> <item name="windowTitleStyle">@android:style/DialogWindowTitle</item> <item name="windowContentOverlay">@null</item> <item name="itemTextAppearance">@android:style/TextAppearance.Large.Inverse</item> <item name="textAppearanceListItem">@android:style/TextAppearance.Large.Inverse</item> <item name="textAppearanceListItemSmall">@android:style/TextAppearance.Large.Inverse</item> </style>
<activity android:name=".AlertActivity" android:excludeFromRecents="true" android:finishOnTaskLaunch="true" android:launchMode="singleInstance" android:theme="@*android:style/Theme.Dialog.Alert" > </activity>
package com.android.autologin; import android.app.Activity; import android.content.DialogInterface; import android.content.DialogInterface.OnDismissListener; import android.os.Bundle; /** * This is the dialog Activity used as an AlertDialog for the user to interact. * Requires android:launchMode="singleInstance" in your AndroidManifest to work * properly. * <p/> * 当Dialog有编辑框时如果选择会弹菜单窗口就不要用 AlertDialog(Application) * 再添加WindowManager.LayoutParams. TYPE_SYSTEM_ALERT， * <pre> * Context applicationContext = mainActivity.getApplicationContext(); * AlertDialog.Builder dlgBuilder = new AlertDialog.Builder(applicationContext); * EditText et = new EditText(mainActivity); * dlgBuilder.setTitle(mainActivity.getTitle()); * dlgBuilder.setPositiveButton(android.R.string.ok, null); * dlgBuilder.setNegativeButton(android.R.string.cancel, null); * dlgBuilder.setIcon(android.R.drawable.ic_dialog_alert); * dlgBuilder.setView(et); * AlertDialog dialog = dlgBuilder.create(); * dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT); * dialog.show(); * </pre> * 防止报错 * attrs.token = null, * BadTokenException("Unable to add window -- token " + attrs.token + " is not for an application") * * @usage * * <i>.java</i> * * <code><pre> * Intent dialogIntent = new Intent(mContext, AlertActivity.class); * dialogIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); * mContext.startActivity(dialogIntent); * </pre></code> * * <i>AndroidManifest.xml</i> * * <pre> * < activity * android:name=".AlertActivity" * android:excludeFromRecents="true" * android:finishOnTaskLaunch="true" * android:launchMode="singleInstance" * android:theme="@android:style/Theme.Dialog" > * < /activity> * </pre> * * @author Sansan **/ public class AlertActivity extends Activity implements DialogInterface.OnClickListener, OnDismissListener { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // setContentView(R.layout.alertactivity); // Get root view from current activity // @see http://stackoverflow.com/questions/4486034/get-root-view-from-current-activity // //rootview //// check layouts in hierarchyviewer. // findViewById(android.R.id.content) is giving me the root view // findViewById(android.R.id.content).getRootView() //getWindow().getDecorView().findViewById(android.R.id.content) // //------------------------------------------------------------------------------------------- // //This is what I use to get the root view as found in the XML file assigned with setContentView // //This answer gave the view without the status bar - which is what I wanted. I was looking for // //the pixel width + height of the visible part of the activity. This one works, thanks! // //This excludes ActionBar! //final ViewGroup viewGroup = (ViewGroup) ((ViewGroup) this.findViewById(android.R.id.content)).getChildAt(0); // //------------------------------------------------------------------------------------------- // //------------------------------------------------------------------------------------------- // //I tested this in android 4.0.3, only: // // getWindow().getDecorView().getRootView(); // // //give the same view what we get from // // anyview.getRootView(); == com.android.internal.policy.impl.PhoneWindow$DecorView@######### // // //and // // getWindow().getDecorView().findViewById(android.R.id.content) // //giving child of its == android.widget.FrameLayout@####### // //Please confirm. // //------------------------------------------------------------------------------------------- //setVisible(true); //requestWindowFeature(Window.FEATURE_NO_TITLE);//去掉标题栏 // //Error, if select any text to pop up a system menu view, such as // paste in // // the Dialog. // //@see android/view/ViewRootImpl.java // //case WindowManagerGlobal.ADD_NOT_APP_TOKEN: throw new // //WindowManager.BadTokenException("Unable to add window -- token " + // //attrs.token + " is not for an application"); // Context applicationContext = this.getApplicationContext(); // AlertDialog.Builder dlgBuilder = new // AlertDialog.Builder(applicationContext); //AlertDialog.Builder dlgBuilder = new AlertDialog.Builder(this); //EditText et = new EditText(this); //dlgBuilder.setTitle(this.getTitle()); //dlgBuilder.setPositiveButton(android.R.string.ok, AlertActivity.this); //dlgBuilder.setNegativeButton(android.R.string.cancel, AlertActivity.this); //dlgBuilder.setIcon(android.R.drawable.ic_dialog_alert); //dlgBuilder.setView(et); //AlertDialog dialog = dlgBuilder.create(); //dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT); //dialog.setCanceledOnTouchOutside(false); //dialog.setOnDismissListener(this); //dialog.show(); // //DialogFragment // FragmentTransaction ft = getFragmentManager().beginTransaction(); // DialogFragment newFragment = MyDialogFragment.newInstance(); // ft.add(android.R.id.content, newFragment); // ft.commit(); } //// @TargetApi(Build.VERSION_CODES.HONEYCOMB) // public static class MyDialogFragment extends DialogFragment { // static MyDialogFragment newInstance() { // return new MyDialogFragment(); // } // // @Override // public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // //View v = inflater.inflate(R.layout.alertdialog, container, false); // getActivity().getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT); // return new EditText(getActivity()); // } // } /** * meanwhile, finish the AlertActivity. */ @Override public void onDismiss(DialogInterface dialog) { //finish(); } @Override public void onClick(DialogInterface dialog, int which) { } }
Context applicationContext = mainActivity.getApplicationContext(); WindowManager applicationWindowManager = (WindowManager) applicationContext.getSystemService(Context.WINDOW_SERVICE); AlertDialog.Builder dlgBuilder = new AlertDialog.Builder(mainActivity); EditText et = new EditText(mainActivity); // Dialog界面 dlgBuilder.setTitle(mainActivity.getTitle()); dlgBuilder.setPositiveButton(android.R.string.ok, null); dlgBuilder.setNegativeButton(android.R.string.cancel, null); dlgBuilder.setIcon(android.R.drawable.ic_dialog_alert); dlgBuilder.setView(et); AlertDialog dialog = dlgBuilder.create(); // dialog.getWindow().getAttributes().token = mainActivity.getWindow().getAttributes().token; // try { Field mWindowManagerField = Dialog.class.getDeclaredField("mWindowManager"); mWindowManagerField.setAccessible(true); mWindowManagerField.set(dialog, applicationWindowManager); } catch (NoSuchFieldException e) { // TODO Auto-generated catch block Alog.w(TAG, e.toString()); } catch (IllegalAccessException e) { // TODO Auto-generated catch block Alog.w(TAG, e.toString()); } catch (IllegalArgumentException e) { // TODO Auto-generated catch block Alog.w(TAG, e.toString()); } dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT); // dialog.getWindow().addFlags(android.R.attr.windowIsFloating); dialog.show();
public abstract class Window
/** * Return whether this window is being displayed with a floating style * (based on the {@link android.R.attr#windowIsFloating} attribute in * the style/theme). * * @return Returns true if the window is configured to be displayed floating * on top of whatever is behind it. */ public abstract boolean isFloating(); /** * Set the width and height layout parameters of the window. The default * for both of these is MATCH_PARENT; you can change them to WRAP_CONTENT * or an absolute value to make a window that is not full-screen. * * @param width The desired layout width of the window. * @param height The desired layout height of the window. * * @see ViewGroup.LayoutParams#height * @see ViewGroup.LayoutParams#width */ public void setLayout(int width, int height) { final WindowManager.LayoutParams attrs = getAttributes(); attrs.width = width; attrs.height = height; if (mCallback != null) { mCallback.onWindowAttributesChanged(attrs); } } /** * Set the gravity of the window, as per the Gravity constants. This * controls how the window manager is positioned in the overall window; it * is only useful when using WRAP_CONTENT for the layout width or height. * * @param gravity The desired gravity constant. * * @see Gravity * @see #setLayout */ public void setGravity(int gravity) { final WindowManager.LayoutParams attrs = getAttributes(); attrs.gravity = gravity; if (mCallback != null) { mCallback.onWindowAttributesChanged(attrs); } } /** * Set the type of the window, as per the WindowManager.LayoutParams * types. * * @param type The new window type (see WindowManager.LayoutParams). */ public void setType(int type) { final WindowManager.LayoutParams attrs = getAttributes(); attrs.type = type; if (mCallback != null) { mCallback.onWindowAttributesChanged(attrs); } } /** * Set the format of window, as per the PixelFormat types. This overrides * the default format that is selected by the Window based on its * window decorations. * * @param format The new window format (see PixelFormat). Use * PixelFormat.UNKNOWN to allow the Window to select * the format. * * @see PixelFormat */ public void setFormat(int format) { final WindowManager.LayoutParams attrs = getAttributes(); if (format != PixelFormat.UNKNOWN) { attrs.format = format; mHaveWindowFormat = true; } else { attrs.format = mDefaultWindowFormat; mHaveWindowFormat = false; } if (mCallback != null) { mCallback.onWindowAttributesChanged(attrs); } } /** * Specify custom animations to use for the window, as per * {@link WindowManager.LayoutParams#windowAnimations * WindowManager.LayoutParams.windowAnimations}. Providing anything besides * 0 here will override the animations the window would * normally retrieve from its theme. */ public void setWindowAnimations(int resId) { final WindowManager.LayoutParams attrs = getAttributes(); attrs.windowAnimations = resId; if (mCallback != null) { mCallback.onWindowAttributesChanged(attrs); } } /** * Specify an explicit soft input mode to use for the window, as per * {@link WindowManager.LayoutParams#softInputMode * WindowManager.LayoutParams.softInputMode}. Providing anything besides * "unspecified" here will override the input mode the window would * normally retrieve from its theme. */ public void setSoftInputMode(int mode) { final WindowManager.LayoutParams attrs = getAttributes(); if (mode != WindowManager.LayoutParams.SOFT_INPUT_STATE_UNSPECIFIED) { attrs.softInputMode = mode; mHasSoftInputMode = true; } else { mHasSoftInputMode = false; } if (mCallback != null) { mCallback.onWindowAttributesChanged(attrs); } } /** * Convenience function to set the flag bits as specified in flags, as * per {@link #setFlags}. * @param flags The flag bits to be set. * @see #setFlags * @see #clearFlags */ public void addFlags(int flags) { setFlags(flags, flags); } /** @hide */ public void addPrivateFlags(int flags) { setPrivateFlags(flags, flags); } /** * Convenience function to clear the flag bits as specified in flags, as * per {@link #setFlags}. * @param flags The flag bits to be cleared. * @see #setFlags * @see #addFlags */ public void clearFlags(int flags) { setFlags(0, flags); } /** * Set the flags of the window, as per the * {@link WindowManager.LayoutParams WindowManager.LayoutParams} * flags. * * <p>Note that some flags must be set before the window decoration is * created (by the first call to * {@link #setContentView(View, android.view.ViewGroup.LayoutParams)} or * {@link #getDecorView()}: * {@link WindowManager.LayoutParams#FLAG_LAYOUT_IN_SCREEN} and * {@link WindowManager.LayoutParams#FLAG_LAYOUT_INSET_DECOR}. These * will be set for you based on the {@link android.R.attr#windowIsFloating} * attribute. * * @param flags The new window flags (see WindowManager.LayoutParams). * @param mask Which of the window flag bits to modify. * @see #addFlags * @see #clearFlags */ public void setFlags(int flags, int mask) { final WindowManager.LayoutParams attrs = getAttributes(); attrs.flags = (attrs.flags&~mask) | (flags&mask); if ((mask&WindowManager.LayoutParams.FLAG_NEEDS_MENU_KEY) != 0) { attrs.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_SET_NEEDS_MENU_KEY; } mForcedWindowFlags |= mask; if (mCallback != null) { mCallback.onWindowAttributesChanged(attrs); } } private void setPrivateFlags(int flags, int mask) { final WindowManager.LayoutParams attrs = getAttributes(); attrs.privateFlags = (attrs.privateFlags & ~mask) | (flags & mask); if (mCallback != null) { mCallback.onWindowAttributesChanged(attrs); } } /** * Set the amount of dim behind the window when using * {@link WindowManager.LayoutParams#FLAG_DIM_BEHIND}. This overrides * the default dim amount of that is selected by the Window based on * its theme. * * @param amount The new dim amount, from 0 for no dim to 1 for full dim. */ public void setDimAmount(float amount) { final WindowManager.LayoutParams attrs = getAttributes(); attrs.dimAmount = amount; mHaveDimAmount = true; if (mCallback != null) { mCallback.onWindowAttributesChanged(attrs); } } /** * Specify custom window attributes. <strong>PLEASE NOTE:</strong> the * layout params you give here should generally be from values previously * retrieved with {@link #getAttributes()}; you probably do not want to * blindly create and apply your own, since this will blow away any values * set by the framework that you are not interested in. * * @param a The new window attributes, which will completely override any * current values. */ public void setAttributes(WindowManager.LayoutParams a) { mWindowAttributes.copyFrom(a); if (mCallback != null) { mCallback.onWindowAttributesChanged(mWindowAttributes); } } /** * Retrieve the current window attributes associated with this panel. * * @return WindowManager.LayoutParams Either the existing window * attributes object, or a freshly created one if there is none. */ public final WindowManager.LayoutParams getAttributes() { return mWindowAttributes; }
| java.lang.Object | ||
| ? | android.view.ViewGroup.LayoutParams | |
| ? | android.view.WindowManager.LayoutParams | |
主要成员常量
Window flag系列
该系列主要用于对Window的flag进行设置。设置Window的flag,可以直接对Window的getAttributes()得到其 WindowManager.LayoutParams对象,然后直接对它flag变量操作。也可以Window的addFlags(int flags)方法，setFlags(int flags, int mask)方法，clearFlags(int flags)方法进行操作。
比如设置全屏：
Window window = getWindow();
WindowManager.LayoutParams winParams = win.getAttributes();
winParams.flags=winParams.flags|WindowManager.LayoutParams.FLAG_FULLSCREEN；
或
window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
或
window.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
取消全屏
Window window = getWindow();
winParams.flags=winParams.flags&~WindowManager.LayoutParams.FLAG_FULLSCREEN;
或
window.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
或
window.setFlags(0, WindowManager.LayoutParams.FLAG_FULLSCREEN);
所有Window flag如下：
Window.addFlags(int flag)
final Window win = getWindow(); win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);//覆盖在屏幕锁之上。 PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); if (!pm.isScreenOn()) {//屏幕时候保持高亮 win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); }
一些Flag的介绍
窗口之后的内容变暗。
public static final int FLAG_DIM_BEHIND = 0x00000002;
窗口之后的内容变模糊。
public static final int FLAG_BLUR_BEHIND = 0x00000004;
不许获得焦点。
不能获得按键输入焦点，所以不能向它发送按键或按钮事件。那些时间将发送给它后面的可以获得焦点的窗口。此选项还会设置FLAG_NOT_TOUCH_MODAL选项。设置此选项，意味着窗口不能与软输入法进行交互，所以它的Z序独立于任何活动的输入法（换句话说，它可以全屏显示，如果需要的话，可覆盖输入法窗口）。要修改这一行为，可参考FLAG_ALT_FOCUSALBE_IM选项。
public static final int FLAG_NOT_FOCUSABLE = 0x00000008;
不接受触摸屏事件。
public static final int FLAG_NOT_TOUCHABLE = 0x00000010;
当窗口可以获得焦点（没有设置FLAG_NOT_FOCUSALBE选项）时，仍然将窗口范围之外的点设备事件（鼠标、触摸屏）发送给后面的窗口处理。否则它将独占所有的点设备事件，而不管它们是不是发生在窗口范围之内。
public static final int FLAG_NOT_TOUCH_MODAL = 0x00000020;
如果设置了这个标志，当设备休眠时，点击触摸屏，设备将收到这个第一触摸事件。
通常第一触摸事件被系统所消耗，用户不会看到他们点击屏幕有什么反应。
public static final int FLAG_TOUCHABLE_WHEN_WAKING = 0x00000040;
当此窗口为用户可见时，保持设备常开，并保持亮度不变。
public static final int FLAG_KEEP_SCREEN_ON = 0x00000080;
窗口占满整个屏幕，忽略周围的装饰边框（例如状态栏）。此窗口需考虑到装饰边框的内容。
public static final int FLAG_LAYOUT_IN_SCREEN =0x00000100;
允许窗口扩展到屏幕之外。
public static final int FLAG_LAYOUT_NO_LIMITS =0x00000200;
窗口显示时，隐藏所有的屏幕装饰（例如状态条）。使窗口占用整个显示区域。
public static final int FLAG_FULLSCREEN = 0x00000400;
此选项将覆盖FLAG_FULLSCREEN选项，并强制屏幕装饰（如状态条）弹出。
public static final int FLAG_FORCE_NOT_FULLSCREEN =0x00000800;
抖动。指的是对半透明的显示方法。又称“点透”。图形处理较差的设备往往用“点透”替代Alpha混合。
public static final int FLAG_DITHER = 0x00001000;
不允许屏幕截图。
public static final int FLAG_SECURE = 0x00002000;
一种特殊模式，布局参数用于指示显示比例。
public static final int FLAG_SCALED = 0x00004000;
当屏幕有可能贴着脸时，这一选项可防止面颊对屏幕造成误操作。
public static final int FLAG_IGNORE_CHEEK_PRESSES = 0x00008000;
当请求布局时，你的窗口可能出现在状态栏的上面或下面，从而造成遮挡。当设置这一选项后，窗口管理器将确保窗口内容不会被装饰条（状态栏）盖住。
public static final int FLAG_LAYOUT_INSET_DECOR = 0x00010000;
反转FLAG_NOT_FOCUSABLE选项。
如果同时设置了FLAG_NOT_FOCUSABLE选项和本选项，窗口将能够与输入法交互，允许输入法窗口覆盖；
如果FLAG_NOT_FOCUSABLE没有设置而设置了本选项，窗口不能与输入法交互，可以覆盖输入法窗口。
public static final int FLAG_ALT_FOCUSABLE_IM = 0x00020000;
如果你设置了FLAG_NOT_TOUCH_MODAL，那么当触屏事件发生在窗口之外事，可以通过设置此标志接收到一个MotionEvent.ACTION_OUTSIDE事件。注意，你不会收到完整的down/move/up事件，只有第一次down事件时可以收到ACTION_OUTSIDE。
public static final int FLAG_WATCH_OUTSIDE_TOUCH = 0x00040000;
当屏幕锁定时，窗口可以被看到。这使得应用程序窗口优先于锁屏界面。可配合FLAG_KEEP_SCREEN_ON选项点亮屏幕并直接显示在锁屏界面之前。可使用FLAG_DISMISS_KEYGUARD选项直接解除非加锁的锁屏状态。此选项只用于最顶层的全屏幕窗口。
public static final int FLAG_SHOW_WHEN_LOCKED = 0x00080000;
请求系统墙纸显示在你的窗口后面。窗口必须是半透明的。
public static final int FLAG_SHOW_WALLPAPER = 0x00100000;
窗口一旦显示出来，系统将点亮屏幕，正如用户唤醒设备那样。
public static final int FLAG_TURN_SCREEN_ON = 0x00200000;
解除锁屏。只有锁屏界面不是加密的才能解锁。如果锁屏界面是加密的，那么用户解锁之后才能看到此窗口，除非设置了FLAG_SHOW_WHEN_LOCKED选项。
public static final int FLAG_DISMISS_KEYGUARD = 0x00400000;
锁屏界面淡出时，继续运行它的动画。
public static final int FLAG_KEEP_SURFACE_WHILE_ANIMATING =0x10000000;
以原始尺寸显示窗口。用于在兼容模式下运行程序。
public static final int FLAG_COMPATIBLE_WINDOW = 0x20000000;
用于系统对话框。设置此选项的窗口将无条件获得焦点。
public static final int FLAG_SYSTEM_ERROR = 0x40000000;
type 的取值： 应用程序窗口。 public static final int FIRST_APPLICATION_WINDOW = 1; 所有程序窗口的“基地”窗口，其他应用程序窗口都显示在它上面。 public static final int TYPE_BASE_APPLICATION =1; 普通应用功能程序窗口。token必须设置为Activity的token，以指出该窗口属谁。 public static final int TYPE_APPLICATION = 2; 用于应用程序启动时所显示的窗口。应用本身不要使用这种类型。 它用于让系统显示些信息，直到应用程序可以开启自己的窗口。 public static final int TYPE_APPLICATION_STARTING = 3; 应用程序窗口结束。 public static final int LAST_APPLICATION_WINDOW = 99; 子窗口。子窗口的Z序和坐标空间都依赖于他们的宿主窗口。 public static final int FIRST_SUB_WINDOW = 1000; 面板窗口，显示于宿主窗口上层。 public static final int TYPE_APPLICATION_PANEL = FIRST_SUB_WINDOW; 媒体窗口，例如视频。显示于宿主窗口下层。 public static final int TYPE_APPLICATION_MEDIA = FIRST_SUB_WINDOW+1; 应用程序窗口的子面板。显示于所有面板窗口的上层。（GUI的一般规律，越“子”越靠上） public static final int TYPE_APPLICATION_SUB_PANEL = FIRST_SUB_WINDOW +2; 对话框。类似于面板窗口，绘制类似于顶层窗口，而不是宿主的子窗口。 public static final int TYPE_APPLICATION_ATTACHED_DIALOG = FIRST_SUB_WINDOW +3; 媒体信息。显示在媒体层和程序窗口之间，需要实现透明（半透明）效果。（例如显示字幕） public static final int TYPE_APPLICATION_MEDIA_OVERLAY = FIRST_SUB_WINDOW +4; 子窗口结束。（ End of types of sub-windows ） public static final int LAST_SUB_WINDOW = 1999; 系统窗口。非应用程序创建。 public static final int FIRST_SYSTEM_WINDOW = 2000; 状态栏。只能有一个状态栏；它位于屏幕顶端，其他窗口都位于它下方。 public static final int TYPE_STATUS_BAR = FIRST_SYSTEM_WINDOW; 搜索栏。只能有一个搜索栏；它位于屏幕上方。 public static final int TYPE_SEARCH_BAR = FIRST_SYSTEM_WINDOW+1; 电话窗口。它用于电话交互（特别是呼入）。它置于所有应用程序之上，状态栏之下。 public static final int TYPE_PHONE = FIRST_SYSTEM_WINDOW+2; 系统提示。它总是出现在应用程序窗口之上。 public static final int TYPE_SYSTEM_ALERT = FIRST_SYSTEM_WINDOW +3; 锁屏窗口。 public static final int TYPE_KEYGUARD = FIRST_SYSTEM_WINDOW +4; 信息窗口。用于显示toast。 public static final int TYPE_TOAST = FIRST_SYSTEM_WINDOW +5; 系统顶层窗口。显示在其他一切内容之上。此窗口不能获得输入焦点，否则影响锁屏。 public static final int TYPE_SYSTEM_OVERLAY = FIRST_SYSTEM_WINDOW +6; 电话优先，当锁屏时显示。此窗口不能获得输入焦点，否则影响锁屏。 public static final int TYPE_PRIORITY_PHONE = FIRST_SYSTEM_WINDOW +7; 系统对话框。（例如音量调节框）。 public static final int TYPE_SYSTEM_DIALOG = FIRST_SYSTEM_WINDOW +8; 锁屏时显示的对话框。 public static final int TYPE_KEYGUARD_DIALOG = FIRST_SYSTEM_WINDOW +9; 系统内部错误提示，显示于所有内容之上。 public static final int TYPE_SYSTEM_ERROR = FIRST_SYSTEM_WINDOW +10; 内部输入法窗口，显示于普通UI之上。应用程序可重新布局以免被此窗口覆盖。 public static final int TYPE_INPUT_METHOD = FIRST_SYSTEM_WINDOW +11; 内部输入法对话框，显示于当前输入法窗口之上。 public static final int TYPE_INPUT_METHOD_DIALOG= FIRST_SYSTEM_WINDOW +12; 墙纸窗口。 public static final int TYPE_WALLPAPER = FIRST_SYSTEM_WINDOW +13; 状态栏的滑动面板。 public static final int TYPE_STATUS_BAR_PANEL = FIRST_SYSTEM_WINDOW +14; 系统窗口结束。 public static final int LAST_SYSTEM_WINDOW = 2999;
关于Window的类型，主要有三种：
1 Application Windows：取值在 FIRST_APPLICATION_WINDOW 和 LAST_APPLICATION_WINDOW 之间。
是通常的、顶层的应用程序窗口。必须将token设置成activity的token。
2 Sub Windows：取值在 FIRST_SUB_WINDOW 和 LAST_SUB_WINDOW 之间。
与顶层窗口相关联，token必须设置为它所附着的宿主窗口的token。
3 System Windows：取值在 FIRST_SYSTEM_WINDOW 和 LAST_SYSTEM_WINDOW 之间。
用于特定的系统功能。它不能用于应用程序，使用时需要特殊权限，在manifest.xml中添加如下声明：
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" /> |
这三种类型的图层顺序是一次增高，即Application Windows在对底层，System Windows在最上层。看到这里我们再来看一下上面的代码，其中这样一句：
mWindowLayoutParams.type = android.view.WindowManager.LayoutParams.TYPE_SYSTEM_ALERT; |
Dialog是属于Sub Windows类型的，Toast是System Windows类型
Android WindowManager及其动画问题
来源：wangjinyu501的专栏
一、概述 开发中发现在WindowManager上像在Activity中使用动画效果无效，比如下面的代码：
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ImageView iv = new ImageView(this);iv.setImageResource(R.drawable.ic_launcher);TranslateAnimation animation = new TranslateAnimation( Animation.ABSOLUTE, 20, Animation.ABSOLUTE, 300, Animation.ABSOLUTE, 100, Animation.ABSOLUTE, 400);animation.setDuration(1000);animation.setFillAfter(false);iv.setAnimation(animation);WindowManager mWindowManager = (WindowManager) this .getSystemService(Context.WINDOW_SERVICE);WindowManager.LayoutParams mLayoutParams = new WindowManager.LayoutParams();mLayoutParams.x = 20;mLayoutParams.y = 100;mLayoutParams.height = WindowManager.LayoutParams.WRAP_CONTENT;mLayoutParams.width = WindowManager.LayoutParams.WRAP_CONTENT;mLayoutParams.gravity = Gravity.TOP;mLayoutParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;mWindowManager.addView(iv, mLayoutParams);animation.start(); |
二、分析 为什么会不执行动画呢，原因在于：the view which is going to be animated must not be directly added to the top window, because top window of android is not a real ViewGroup. so the view must be added to a ViewGroup like FrameLayout first and then this ViewGroup be added to the top window.意思是说动画执行的条件是不能直接添加到最顶层的Window，而是需要一个容器。比如，在xml中定义的控件就可以使用动画。 后来发现一种解决方案是WindowManager.LayoutParams有一个动画属性：windowAnimations，可以这样使用
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lp = new WindowManager.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.TYPE_PHONE, WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE, PixelFormat.RGBA_8888); lp.gravity = Gravity.LEFT |Gravity.TOP; lp.windowAnimations = R.style.anim_view;//动画 wm = (WindowManager) getSystemService(Context.WINDOW_SERVICE); wm.addView(view, lp); |
但是，这是对整个View的一个动画，而不是View中某个控件的动画。而且，使用的时候需要在View状态改变的时候才会出现动画效果。比如消失/出现的时候才会有动画效果。因此这个方案也是行不通的。 既然WindowManager不是一个ViewGroup，那么就构造一个容器来装载WindowManager，可以如下：
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/****/package com.kince.apus.widget;import com.kince.apus.R;import android.animation.Animator;import android.animation.Animator.AnimatorListener;import android.animation.AnimatorSet;import android.animation.ObjectAnimator;import android.content.Context;import android.graphics.PixelFormat;import android.os.Handler;import android.util.AttributeSet;import android.view.LayoutInflater;import android.view.View;import android.view.WindowManager;import android.widget.FrameLayout;import android.widget.ImageView;import android.widget.TextView;/*** @author kince* @category Windowmanager在Layout中的应用***/public class GuideLayout extends FrameLayout { private WindowManager wManager; private WindowManager.LayoutParams wmParams; private View addView; private TextView mTextView; private ImageView mImageView; private boolean isAddView; private AnimatorSet mShowAnimatorSet, mHideAnimatorSet; private Handler mHandler = new Handler() { public void handleMessage(android.os.Message msg) { super.handleMessage(msg); switch (msg.what) { case 1: showAnimator(); break; default: break; } }; }; /** * @param context */ public GuideLayout(Context context) { this(context, null); // TODO Auto-generated constructor stub } /** * @param context * @param attrs */ public GuideLayout(Context context, AttributeSet attrs) { this(context, attrs, 0); // TODO Auto-generated constructor stub } /** * @param context * @param attrs * @param defStyle */ public GuideLayout(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); addView = LayoutInflater.from(context).inflate(R.layout.guide_layout, this); mTextView = (TextView) addView.findViewById(R.id.tv); mImageView = (ImageView) addView.findViewById(R.id.iv); mTextView.setVisibility(View.GONE); mImageView.setVisibility(View.GONE); setAnimator(); getWindowManager(context); } /** * @category 实例化WindowManager 初次模拟位置时候使用 * @param context */ private void getWindowManager(final Context context) { wManager = (WindowManager) context.getApplicationContext() .getSystemService(Context.WINDOW_SERVICE); wmParams = new WindowManager.LayoutParams(); wmParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT; wmParams.format = PixelFormat.TRANSPARENT; wmParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE; wmParams.gravity = 17; wmParams.width = WindowManager.LayoutParams.MATCH_PARENT; wmParams.height = WindowManager.LayoutParams.MATCH_PARENT; } private void setAnimator() { mShowAnimatorSet = new AnimatorSet(); Animator[] showAnimator = new Animator[2]; showAnimator[0] = ObjectAnimator.ofFloat(mTextView, "alpha", new float[] { 0.0F, 1.0F }); showAnimator[1] = ObjectAnimator.ofFloat(mImageView, "alpha", new float[] { 0.0F, 1.0F }); mShowAnimatorSet.playTogether(showAnimator); mShowAnimatorSet.setDuration(1500l); mHideAnimatorSet = new AnimatorSet(); Animator[] hideAnimator = new Animator[2]; hideAnimator[0] = ObjectAnimator.ofFloat(mTextView, "alpha", new float[] { 1.0F, 0.0F }); hideAnimator[1] = ObjectAnimator.ofFloat(mImageView, "alpha", new float[] { 1.0F, 0.0F }); mHideAnimatorSet.playTogether(hideAnimator); mHideAnimatorSet.setDuration(1500l); } public void showAnimator() { mTextView.setVisibility(View.VISIBLE); mImageView.setVisibility(View.VISIBLE); mShowAnimatorSet.start(); isAddView=true; } public void hideAnimator() { mHideAnimatorSet.start(); mHideAnimatorSet.addListener(new AnimatorListener() { @Override public void onAnimationStart(Animator animation) { // TODO Auto-generated method stub } @Override public void onAnimationRepeat(Animator animation) { // TODO Auto-generated method stub } @Override public void onAnimationEnd(Animator animation) { // TODO Auto-generated method stub mTextView.setVisibility(View.INVISIBLE); mImageView.setVisibility(View.INVISIBLE); } @Override public void onAnimationCancel(Animator animation) { // TODO Auto-generated method stub } }); } public void sendMessage() { if (isAddView) { wManager.removeView(this); mHandler.removeMessages(1); isAddView=false; } mHandler.sendEmptyMessage(1); wManager.addView(this, wmParams); }} |
这样一来，就可以实现在WindowManager上的动画效果了。其实，造成这种现象的原因在于对AndroidAPI以及其体系的理解不够深刻。忽略了动画执行所需要的基本条件，影射的问题就是考虑问题不够全面。所以，不论开发哪种功能，使用哪个API，前期的规划、调研很重要。知己知彼，仅此而已。
