android - 如何从后台服务记录 Activity 上的所有触摸事件

Question

我需要记录一个 Activity 中的所有触摸点，所以我在窗口管理器中添加了一个覆盖 View ，并在覆盖 View 上设置了触摸监听器，我得到了所有触摸点，但在添加覆盖后我遇到了两个问题

1. 我可以打开选项菜单但无法选择任何菜单项
2. AlertDialog.show() 停止显示警告框我可以通过重写 Activity 中的 onTouchEvent 方法来获取所有接触点，但应用要求不允许这样做。

如果有人能在这方面帮助我或分享一些解释 WindowManager、window 和 DecorView 等的链接，那就太好了。这是我的代码，如果需要更多信息，请告诉我。

 WindowManager.LayoutParams params = new WindowManager.LayoutParams(
    WindowManager.LayoutParams.MATCH_PARENT,
    WindowManager.LayoutParams.MATCH_PARENT,
    WindowManager.LayoutParams.TYPE_PHONE,
    WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
            | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
            | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
    PixelFormat.TRANSLUCENT);


WindowManager wm = (WindowManager) activityContext
    .getSystemService(Context.WINDOW_SERVICE);

View mView = new View(activityContext);

wm.addView(mView, params);

mView.setOnTouchListener(new OnTouchListener() {

@Overrideenter code here
public boolean onTouch(View v, MotionEvent event) {
    Log.d("touch", "event occured");
    activity.getWindow().superDispatchTouchEvent(event);    
 // or   
   // activity.dispatchTouchEvent(event);

 return false;
}
});

Answer 1

最后我通过设置窗口 Activity 的回调来做到这一点

android.view.Window.Callback mCallBack = activity.getWindow().getCallback();

activity.getWindow().setCallback(new MyWindowCallBacks(mCallBack, act)); 

这是我的 MyWindowCallBacks 类

public class MyWindowCallBacks implements Window.Callback {
        private Window.Callback mCallBack;
        private Activity mActivity;

        public MyWindowCallBacks(Window.Callback mCallBack, Activity mActivity) {
            this.mCallBack = mCallBack;
            this.mActivity = mActivity;
        }

        @Override
        public boolean dispatchGenericMotionEvent(MotionEvent event) {

            return mCallBack.dispatchGenericMotionEvent(event);
        }

        @Override
        public boolean dispatchKeyEvent(KeyEvent event) {

            return mCallBack.dispatchKeyEvent(event);
        }

        @Override
        public boolean dispatchKeyShortcutEvent(KeyEvent event) {

            return mCallBack.dispatchKeyShortcutEvent(event);
        }

        @Override
        public boolean dispatchPopulateAccessibilityEvent(
                AccessibilityEvent event) {

            return mCallBack.dispatchPopulateAccessibilityEvent(event);
        }

        @Override
        public boolean dispatchTouchEvent(MotionEvent event) {

          // Here I can get all touch events

            return mCallBack.dispatchTouchEvent(event);
        }

        @Override
        public boolean dispatchTrackballEvent(MotionEvent event) {

            return mCallBack.dispatchTrackballEvent(event);
        }

        @Override
        public void onActionModeFinished(ActionMode mode) {

            mCallBack.onActionModeFinished(mode);
        }

        @Override
        public void onActionModeStarted(ActionMode mode) {

            mCallBack.onActionModeStarted(mode);
        }

        @Override
        public void onAttachedToWindow() {

            mCallBack.onAttachedToWindow();
        }

        @Override
        public void onContentChanged() {

            mCallBack.onContentChanged();
        }

        @Override
        public boolean onCreatePanelMenu(int featureId, Menu menu) {

            return mCallBack.onCreatePanelMenu(featureId, menu);
        }

        @Override
        public View onCreatePanelView(int featureId) {

            return mCallBack.onCreatePanelView(featureId);
        }

        @SuppressLint("MissingSuperCall")
        @Override
        public void onDetachedFromWindow() {


            mCallBack.onDetachedFromWindow();
        }

        @Override
        public boolean onMenuItemSelected(int featureId, MenuItem item) {

            return mCallBack.onMenuItemSelected(featureId, item);
        }

        @Override
        public boolean onMenuOpened(int featureId, Menu menu) {

            return mCallBack.onMenuOpened(featureId, menu);
        }

        @Override
        public void onPanelClosed(int featureId, Menu menu) {

            mCallBack.onPanelClosed(featureId, menu);
        }

        @Override
        public boolean onPreparePanel(int featureId, View view, Menu menu) {

            return mCallBack.onPreparePanel(featureId, view, menu);
        }

        @Override
        public boolean onSearchRequested() {

            return mCallBack.onSearchRequested();
        }

        @Override
        public void onWindowAttributesChanged(LayoutParams attrs) {

            mCallBack.onWindowAttributesChanged(attrs);
        }

        @Override
        public void onWindowFocusChanged(boolean hasFocus) {

            mCallBack.onWindowFocusChanged(hasFocus);
        }

        @Override
        public ActionMode onWindowStartingActionMode(Callback callback) {

            return mCallBack.onWindowStartingActionMode(callback);
        }

    }