Android 是否可以创建服务覆盖并拦截所有触摸事件数据?

Android is it possible to create a service overlay and intercept all touch event data?

你好,我正在尝试创建一个透明覆盖层来拦截(并且不会阻止其他应用程序)我在智能手机上执行的所有触摸事件,特别是我对滚动事件感兴趣,这是来自的代码我的服务 class:

  @Override
public void onCreate() {
    super.onCreate();
    windowManager=(WindowManager)this.getSystemService(Context.WINDOW_SERVICE);
    view=new LinearLayoutCompat(this);


    LayoutParams params=new LayoutParams(1, ViewGroup.LayoutParams.MATCH_PARENT);


    view.setLayoutParams(params);
    view.setOnTouchListener(this);

}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {

    LayoutParams params = new LayoutParams(
            1, /* width */
            1, /* height */
            LayoutParams.TYPE_PHONE,
            LayoutParams.FLAG_NOT_FOCUSABLE
                    | LayoutParams.FLAG_NOT_TOUCH_MODAL
                    | LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
            PixelFormat.TRANSPARENT
    );
    params.gravity = Gravity.LEFT | Gravity.TOP;
    windowManager.addView(view, params);
    return super.onStartCommand(intent, flags, startId);
}




@Override
public boolean onTouch(View view, MotionEvent motionEvent) {


    Log.d(TAG,motionEvent.toString());



    return false;
}

然而,我只得到 ACTION_OUTSIDE 类型的运动事件,我需要所有的事件数组来跟踪滚动,提前谢谢你!

I am trying to create a transparent overlay that intercepts ( and does not block the other applications) all the touch events I do on my smartphone

幸运的是,出于明显的隐私和安全原因,这在 Android 4.0+ 上是不可能的。恶意软件作者喜欢这种 "tapjacking" 攻击,无形中监视用户输入。