每次需要录屏操作时，都会弹窗需要用户手动授权比较麻烦，可以通过无障碍模拟用户点击进行授权。
方法主要有三种：
1.查找“立即开始”（华为手机是“允许”）节点，模拟点击；
@Overridepublic void onAccessibilityEvent(AccessibilityEvent event) {Log.i("AccessibilityEvent", event.toString());if (event == null || !event.getPackageName().toString().contains("com.android.systemui"))//不写完整包名，是因为某些手机(如小米)安装器包名是自定义的return;/*某些手机安装页事件返回节点有可能为null，无法获取安装按钮例如华为mate10安装页就会出现event.getSource()为null，所以取巧改变当前页面状态，重新获取节点。该方法在华为mate10上生效，但其它手机没有验证...(目前小米手机没有出现这个问题)*/Log.i(TAG, "onAccessibilityEvent: " + event);AccessibilityNodeInfo eventNode = event.getSource();/*模拟点击->立即开始，只验证了小米5s plus(MIUI 9.8.4.26)、小米Redmi 5A(MIUI 9.2)、华为mate 10其它品牌手机可能还要适配，适配最可恶的就是出现安装广告按钮，误点安装其它垃圾APP（典型就是小米安装后广告推荐按钮，华为安装开始官方安装）*/AccessibilityNodeInfo nodeInfo= getRootInActiveWindow(); //当前窗口根节点if (rootNode == null)return;if (event.getClassName().toString().contains("MediaProjectionPermissionActivity")) {List<AccessibilityNodeInfo> nodes = nodeInfo.findAccessibilityNodeInfosByText("立即开始");Log.i(TAG, "findTxtClick: " + txt + ", " + nodes.size() + ", " + nodes);if (nodes == null || nodes.isEmpty()) {return;}Log.i(TAG, "findTxtClick: " + txt + ", " + nodes.size() + ", " + nodes);for (AccessibilityNodeInfo node : nodes) {node.performAction(AccessibilityNodeInfo.ACTION_CLICK);}// 回收节点实例来重用if (eventNode != null) {eventNode.recycle();}rootNode.recycle();}2.查找buttonId;经我研究立即开始id是
android:id/button1
List<AccessibilityNodeInfo> findAccessibilityNodeInfosByViewId = rootNode.findAccessibilityNodeInfosByViewId("android:id/button1");Log.i(TAG, "findTxtClick: 立即开始" + "button1 " + findAccessibilityNodeInfosByViewId.size());if (findAccessibilityNodeInfosByViewId.size() > 0) {System.out.println("5=====================" + findAccessibilityNodeInfosByViewId.size());Iterator<AccessibilityNodeInfo> it = findAccessibilityNodeInfosByViewId.iterator();while (it.hasNext()) {it.next().performAction(16);}return;}3.某些手机不给你查找，只能查到”取消“，这时候需要模拟一个区域，计算这个区域位置与”允许“重合，进行点击。
List<AccessibilityNodeInfo> findAccessibilityNodeInfosByViewId2 = nodeInfo.findAccessibilityNodeInfosByViewId("android:id/button3");System.out.println("findTxtClick取消 " + findAccessibilityNodeInfosByViewId2.size());if (findAccessibilityNodeInfosByViewId2.size() == 0) {return;}AccessibilityNodeInfo accessibilityNodeInfo = findAccessibilityNodeInfosByViewId2.get(0);Rect rect = new Rect();accessibilityNodeInfo.getBoundsInScreen(rect);Path path = new Path();int screenWidth = getScreenWidth(this);int i = screenWidth - ((rect.left + rect.right) / 2);if (i < (screenWidth / 2) + 50 && i > (screenWidth / 2) - 50) {if (getResources().getConfiguration().orientation == 1) {float f = i;int i2 = rect.top;int i3 = rect.bottom;path.moveTo(f, ((i2 + i3) / 2) - (i3 - i2));} else {float f2 = i;int i4 = rect.top;int i5 = rect.bottom;path.moveTo(f2, ((i4 + i5) / 2) - (i5 - i4));}} else if (getResources().getConfiguration().orientation == 1) {path.moveTo(i, (rect.top + rect.bottom) / 2);} else {path.moveTo(i, (rect.top + rect.bottom) / 2);}Gesture(path, 50L, 0L);return; public void Gesture(final Path path, final long time, final long delay) {new Thread() { // from class: com.stardust.autojs.core.accessibility.AccessibilityService.1@Override // java.lang.Thread, java.lang.Runnable@SuppressLint({"NewApi"})public void run() {try {if (path.isEmpty()) {return;}if (Looper.myLooper() == null) {Looper.prepare();}Handler handler = new Handler(Looper.myLooper());Log.i(TAG, "findTxtClick: 立即开始" + ", dispatchGesture" );dispatchGesture(new GestureDescription.Builder().addStroke(new GestureDescription.StrokeDescription(path, delay, time)).build(), new AccessibilityService.GestureResultCallback() { // from class: com.stardust.autojs.core.accessibility.AccessibilityService.1.1@Override // android.accessibilityservice.AccessibilityService.GestureResultCallbackpublic void onCancelled(GestureDescription gestureDescription) {Log.i(TAG, "findTxtClick: 立即开始" + ", 没点击" );}@Override // android.accessibilityservice.AccessibilityService.GestureResultCallbackpublic void onCompleted(GestureDescription gestureDescription) {Log.i(TAG, "findTxtClick: 立即开始" + ", 点击了" );MyApplication.getInstance().closetan=false;}}, handler);Looper.loop();} catch (Throwable th) {Log.i(TAG, "findTxtClick: 立即开始" + ", th"+th.toString());th.printStackTrace();}}}.start();}即便完成了以上操作，还需要配置不同系统版本的xml权限才能成功。
xml
<accessibility-servicexmlns:android="http://schemas.android.com/apk/res/android"android:description="@string/readme"android:packageNames="com.android.systemui"android:accessibilityEventTypes="typeAllMask"android:accessibilityFeedbackType="feedbackAllMask"android:notificationTimeout="100"android:settingsActivity="com.angcyo.SettingsActivity"android:accessibilityFlags="flagDefault"android:canPerformGestures="true"android:canRetrieveWindowContent="true"/>xml30
<accessibility-servicexmlns:android="http://schemas.android.com/apk/res/android"android:description="@string/readme"android:packageNames="com.android.systemui"android:settingsActivity="com.angcyo.SettingsActivity"android:canRequestTouchExplorationMode="true"android:accessibilityEventTypes="typeAllMask"android:accessibilityFeedbackType="feedbackAllMask"android:notificationTimeout="10"android:accessibilityFlags="flagRetrieveInteractiveWindows|flagRequestFilterKeyEvents|flagReportViewIds|flagRequestEnhancedWebAccessibility|flagIncludeNotImportantViews"android:canRetrieveWindowContent="true"android:canRequestEnhancedWebAccessibility="true"android:canRequestFilterKeyEvents="false"android:canPerformGestures="true"android:canTakeScreenshot="true"/>xml31
<accessibility-servicexmlns:android="http://schemas.android.com/apk/res/android"android:description="@string/readme"android:packageNames="com.android.systemui"android:settingsActivity="com.angcyo.SettingsActivity"android:canRequestTouchExplorationMode="true"android:accessibilityEventTypes="typeAllMask"android:accessibilityFeedbackType="feedbackAllMask"android:notificationTimeout="10"android:accessibilityFlags="flagRetrieveInteractiveWindows|flagRequestFilterKeyEvents|flagReportViewIds|flagRequestEnhancedWebAccessibility|flagIncludeNotImportantViews"android:canRetrieveWindowContent="true"android:canRequestEnhancedWebAccessibility="true"android:canRequestFilterKeyEvents="false"android:canPerformGestures="true"android:canTakeScreenshot="true"/>全部代码我已上传 https://download.csdn.net/download/guodashen007/89874977
