android辅助功能服务

辅助功能服务
1，创建服务类MyAccessibilityService继承AccessibilityService。import android.accessibilityservice.AccessibilityService;
    public class MyAccessibilityService extends AccessibilityService {
        @Override
        public void onAccessibilityEvent(AccessibilityEvent event) {
            if (event.getEventType() == AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED) {
                String packageName = event.getPackageName().toString();
                String className = event.getClassName().toString();
                Log.v(TAG, "包名：" + packageName + "     类名：" + className);
            }
        }
        @Override
        public void onInterrupt() {
        }
    }
2，创建服务的配置属性文件res/xml/service_config.xml.
    <?xml version="1.0" encoding="utf-8"?>
    <accessibility-service xmlns:android="http://schemas.android.com/apk/res/android"
        android:accessibilityEventTypes="typeAllMask"
        android:accessibilityFeedbackType="feedbackVisual"
        android:canRetrieveWindowContent="true"
        android:accessibilityFlags="flagDefault" />
3，清单文件(AndroidManifest.xml)中配置
    <service
        android:name="com.example.server.MyAccessibilityService"
        android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE" >
        <intent-filter>
            <action android:name="android.accessibilityservice.AccessibilityService" />
        </intent-filter>
        <meta-data
            android:name="android.accessibilityservice"
            android:resource="@xml/service_config" />
    </service>
4，手动打开需要跳转到辅助页面。
    // 跳转到辅助功能页面，用于开启或关闭，服务。
    public static void jump(Context context) {
        context.startActivity(new Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS));
    }
5，判断当前应用的辅助功能服务是否开启
    public static String packageNameAndclassName = "com.example.server/com.example.server.MyAccessibilityService";//格式：包名/类名
    public static boolean isAccessibilitySettingsOn(Context context, String packageNameAndclassName) {
        int accessibilityEnabled = 0;
        try {
            accessibilityEnabled = Settings.Secure.getInt(context.getContentResolver(), android.provider.Settings.Secure.ACCESSIBILITY_ENABLED);
        } catch (Settings.SettingNotFoundException e) {
            e.printStackTrace();
        }
        if (accessibilityEnabled == 1) {
            String services = Settings.Secure.getString(context.getContentResolver(), Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES);
            if (services != null) {
                return services.toLowerCase().contains(packageNameAndclassName.toLowerCase());
            }
        }
        return false;
    }
6，代码打开或关闭指定的服务。
    public static String packageNameAndclassName = "com.example.server/com.example.server.MyAccessibilityService";//格式：包名/类名
    // 需要权限
    // <uses-permission android:name="android.permission.WRITE_SETTINGS" />
    // <uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS" />
    public static void openAccessibilitySettings(Context context, String packageNameAndclassName) {
        String accessibilityStr = Settings.Secure.getString(context.getContentResolver(), Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES);
        if (accessibilityStr.toLowerCase().contains(packageNameAndclassName.toLowerCase())) {
            return;
        }
        if (TextUtils.isEmpty(accessibilityStr)) {
            accessibilityStr = packageNameAndclassName;
        } else {
            accessibilityStr = accessibilityStr + ":" + packageNameAndclassName;
        }
        Settings.Secure.putString(context.getContentResolver(), Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES, accessibilityStr);
        Settings.Secure.putInt(context.getContentResolver(), Settings.Secure.ACCESSIBILITY_ENABLED, 1);
    }
    public static void closeAccessibilitySettings(Context context, String packageNameAndclassName) {
        String accessibilityAllString = Settings.Secure.getString(context.getContentResolver(), Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES);
        if (!TextUtils.isEmpty(accessibilityAllString) && accessibilityAllString.toLowerCase().contains(packageNameAndclassName.toLowerCase())) {
            String retAccessibilitySeting = null;
            if (TextUtils.equals(accessibilityAllString.toLowerCase(), packageNameAndclassName.toLowerCase())) {
                retAccessibilitySeting = null;
            } else {
                int index = accessibilityAllString.toLowerCase().indexOf(packageNameAndclassName.toLowerCase());
                if (index == 0) {
                    retAccessibilitySeting = accessibilityAllString.substring(packageNameAndclassName.length() + 1);
                } else if (index + packageNameAndclassName.length() == accessibilityAllString.length()) {
                    retAccessibilitySeting = accessibilityAllString.substring(0, index - 1);
                } else {
                    retAccessibilitySeting = accessibilityAllString.substring(0, index - 1)
                            + accessibilityAllString.substring(index + packageNameAndclassName.length());
                }
            }
            Settings.Secure.putString(context.getContentResolver(), Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES, retAccessibilitySeting);
            Settings.Secure.putInt(context.getContentResolver(), Settings.Secure.ACCESSIBILITY_ENABLED, TextUtils.isEmpty(retAccessibilitySeting) ? 0 : 1);
        }
    }
7，事件：
    参考网址：https://developer.android.google.cn/reference/android/view/accessibility/AccessibilityEvent.html
    事件：
        TYPE_VIEW_CLICKED//view点击
            getEventType() - The type of the event.
            getClassName() - The class name of the source.
            getPackageName() - The package name of the source.
            
            getSource() - The source info (for registered clients).
            getEventTime() - The event time.
            
            getText() - The text of the source's sub-tree.
            isEnabled() - Whether the source is enabled.
            isPassword() - Whether the source is password.
            isChecked() - Whether the source is checked.
            getContentDescription() - The content description of the source.
            getScrollX() - The offset of the source left edge in pixels (without descendants of AdapterView).
            getScrollY() - The offset of the source top edge in pixels (without descendants of AdapterView).
            getFromIndex() - The zero based index of the first visible item of the source, inclusive (for descendants of AdapterView).
            getToIndex() - The zero based index of the last visible item of the source, inclusive (for descendants of AdapterView).
            getItemCount() - The total items of the source (for descendants of AdapterView).
    
        TYPE_WINDOW_STATE_CHANGED//切换到新窗口。
            getEventType() - The type of the event.
            getClassName() - The class name of the source.
            getPackageName() - The package name of the source.
            
            getSource() - The source info (for registered clients).
            getEventTime() - The event time.
            
            getText() - The text of the source's sub-tree.
            isEnabled() - Whether the source is enabled.
            
        TYPE_WINDOW_CONTENT_CHANGED
            getEventType() - The type of the event.
            getContentChangeTypes() - The type of content changes.
            getSource() - The source info (for registered clients).
            getClassName() - The class name of the source.
            getPackageName() - The package name of the source.
            getEventTime() - The event time.
            
    跑龙套的事件：
        TYPE_WINDOWS_CHANGED
        TYPE_VIEW_LONG_CLICKED//长点。
        TYPE_VIEW_SELECTED//选择。
        TYPE_VIEW_FOCUSED//获取焦点。
        TYPE_VIEW_TEXT_CHANGED
        TYPE_VIEW_TEXT_SELECTION_CHANGED
        TYPE_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY 
        TYPE_VIEW_SCROLLED
        TYPE_NOTIFICATION_STATE_CHANGED
        TYPE_VIEW_HOVER_ENTER
        TYPE_VIEW_HOVER_EXIT
        TYPE_TOUCH_INTERACTION_START//触摸交互开始。
            getEventType() - The type of the event.
        TYPE_TOUCH_INTERACTION_END
            getEventType() - The type of the event.
        TYPE_TOUCH_EXPLORATION_GESTURE_START


1            1                TYPE_VIEW_CLICKED//view点击
32        20            TYPE_WINDOW_STATE_CHANGED//一般用的窗口状态监听。
2048    800            TYPE_WINDOW_CONTENT_CHANGED//改变一个窗口的内容的事件




8            8                TYPE_VIEW_FOCUSED//view获取焦点
64        40            TYPE_NOTIFICATION_STATE_CHANGED//通知状态改变
4096    1000        TYPE_VIEW_SCROLLED//滚动view。