使用 AccessibilityService 获取手机屏幕显示的Activity

上图

1、重新AccessibilityService （没有这么简单）

    @RequiresApi(api = Build.VERSION_CODES.N)
    override fun onAccessibilityEvent(event: AccessibilityEvent) {
             var name = event.getClassName().toString();
               if (name.contains("com.")) {
                    if (name.contains(event.packageName)) {
                        name = name.replace(event.packageName.toString(), "");
                        name = name.replace("..", "")
                        if (name.get(0) == '.')
                            name = name.substring(1);
                    }
                    activityName = name
           //这就获取到了包名和top顶部的activity  
           //tip?.text="${event.packageName}${name}"  // 开启悬浮窗 可以显示到窗口上
             loge("${event.packageName}${name}")
         
 
 }
    /**
     * 中断服务的回调
     */
    override fun onInterrupt() {
       
    }
    /**
     * 当服务启动时的回调，可以做一些初始化操作
     */
    @RequiresApi(api = Build.VERSION_CODES.N)
    override fun onServiceConnected() {
 
    }
}

2、配置AccessibilityService在AndroidManifest

                    android:name=".SimulatedClickService"
                    android:enabled="true"
                    android:exported="true"
                    android:label="@string/click_window_screen"
                    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/accessibility_service_config" />
                </service>
                
             

3、配置AccessibilityService在xml

在res下的xml文件下新建accessibility_service_config.xml

<accessibility-service xmlns:android="http://schemas.android.com/apk/res/android"
    android:accessibilityEventTypes="typeAllMask"
    android:accessibilityFeedbackType="feedbackGeneric"
    android:accessibilityFlags="flagDefault"
    android:canPerformGestures="true"
    android:description="@string/app_name"
    android:packageNames="com.duiyi.simulatedclick" />

4、开启无障碍 最重要的一步

    fun startFloatingService() {
        if (!Settings.canDrawOverlays(this)) {
            startActivityForResult(
                Intent(
                    Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse(
                        "package:$packageName"
                    )
                ), 0x0002
            )
        } else {
            try {
            try {
                startActivity(Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS))
            } catch (e: Exception) {
                Log.i(TAG, "start ACTION_ACCESSIBILITY_SETTINGS fail: " + e.message)
                startActivity(Intent(Settings.ACTION_SETTINGS))
            }
        }
    }