Android后台模拟点击探索（附源码）

<?xml version="1.0" encoding="utf-8"?>
<accessibility-service
 xmlns:android="http://schemas.android.com/apk/res/android"
 android:accessibilityEventTypes="typeAllMask"
 android:accessibilityFeedbackType="feedbackGeneric"
 android:accessibilityFlags="flagReportViewIds"
 android:canRetrieveWindowContent="true"
 android:notificationTimeout="100"
 android:description="@string/description"
 android:packageNames="目标包名"/>

public class AutoClickAccessibilityService extends AccessibilityService {
 private static final String TAG = "GK";

 @Override
 public void onAccessibilityEvent(AccessibilityEvent event) {
  ztLog("===start===");
  try {
   //拿到根节点
   AccessibilityNodeInfo rootInfo = getRootInActiveWindow();
   if (rootInfo == null) {
    return;
   //开始遍历，这里拎出来细讲，直接往下看正文
   if (rootInfo.getChildCount() != 0) {
    ……
   }
  } catch (Exception e) {
  ztLog("Exception:" + e.getMessage(), true);
 }
}

/**
 * 深度优先遍历寻找目标节点
 */
private void DFS(AccessibilityNodeInfo rootInfo) {
  if (rootInfo == null || TextUtils.isEmpty(rootInfo.getClassName())) {
    return;
  }
  if (!"android.widget.GridView".equals(rootInfo.getClassName())) {
    ztLog(rootInfo.getClassName().toString());
    for (int i = 0; i < rootInfo.getChildCount(); i++) {
      DFS(rootInfo.getChild(i));
    }
  } else {
    ztLog("==find gridView==");
    final AccessibilityNodeInfo GridViewInfo = rootInfo;
    for (int i = 0; i < GridViewInfo.getChildCount(); i++) {
      final AccessibilityNodeInfo frameLayoutInfo = GridViewInfo.getChild(i);
      //细心的同学会发现，我代码里的遍历的逻辑跟View树里显示的结构不一样，
      //快照显示的FrameLayout下明明该是LinearLayout，我这里却是TextView，
      //这个我也不知道，实际调试出来的就是这样……所以大家实操过程中也要注意了
      final AccessibilityNodeInfo childInfo = frameLayoutInfo.getChild(0);
      String text = childInfo.getText().toString();
      if (text.equals("专栏")) {
        performClick(frameLayoutInfo);
      } else {
        ztLog(text);
      }
    }
  }
}

private void performClick(AccessibilityNodeInfo targetInfo) {
  targetInfo.performAction(AccessibilityNodeInfo.ACTION_CLICK);
}

<service
  android:name=".AutoClickService"
  android:exported="false"
  <!-- label就是在手机设置中的无障碍里，显示的标签 -->
  android:label="自动点击Demo"
  <!-- 注意这里的android:permission是在service结构里面的！！ -->
  android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE" >
  <intent-filter>
    <action android:name="android.accessibilityservice.AccessibilityService" />
  </intent-filter>
  <!-- 配置服务服务配置文件路径 -->
  <meta-data
    android:name="android.accessibilityservice"
    android:resource="@xml/accessible_service_config" />
</service>

adb shell
shell@PRO6:/ $ input tap 125 521
shell@PRO6:/ $ 

  int x = 0, y = 0;
  String[] order = { "input", "tap", " ", x + "", y + "" };
  try {
    new ProcessBuilder(order).start();
  } catch (IOException e) {
    Log.i("GK", e.getMessage());
    e.printStackTrace();
  }

try {
  Instrumentation inst = new Instrumentation();
  inst.sendPointerSync(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_DOWN, x, y, 0));
  inst.sendPointerSync(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_UP, x, y, 0));
  Log.i("GK", "模拟点击" + x + ", " + y);
} catch (Exception e) {
  Log.e("Exception when sendPointerSync", e.toString());
}

private OutputStream os;

/**
 * 执行ADB命令： input tap 125 340
 */
private final void exec(String cmd) {
  try {
    if (os == null) {
      os = Runtime.getRuntime().exec("su").getOutputStream();
    }
    os.write(cmd.getBytes());
    os.flush();
  } catch (Exception e) {
    e.printStackTrace();
    Log.e("GK", e.getMessage());
  }
}

/**
 * 如果前台APP是目标apk
 */
private boolean isCurrentAppIsTarget() {
  String name = getForegroundAppPackageName();
  if (!TextUtils.isEmpty(name) && PACKAGE_NAME.equalsIgnoreCase(name)) {
    return true;
  }
  return false;
}

/**
 * 获取前台程序包名
 */
public String getForegroundAppPackageName() {
  ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
  List<RunningAppProcessInfo> lr = am.getRunningAppProcesses();
  if (lr == null) {
    return null;
  }

  for (RunningAppProcessInfo ra : lr) {
    if (ra.importance == RunningAppProcessInfo.IMPORTANCE_VISIBLE || ra.importance == RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
      Log.i("GK", ra.processName);
      return ra.processName;
    }
  }
  return "";
}