无法拦截覆盖服务上的触摸

Cannot intercept touch on overlay service

我正在尝试使用服务和透明覆盖阻止触摸设备。
该代码似乎在 Android Oreo 上运行良好,但在 运行 Android 版本低于 Oreo 的设备上无法正常运行:

private void setWindowParams(){
    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
        params = new WindowManager.LayoutParams(
                WindowManager.LayoutParams.MATCH_PARENT,
                WindowManager.LayoutParams.MATCH_PARENT,
                WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY,
                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
                        | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
                        | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
                PixelFormat.TRANSLUCENT);
    } else {
        params = new WindowManager.LayoutParams(
                WindowManager.LayoutParams.MATCH_PARENT,
                WindowManager.LayoutParams.MATCH_PARENT,
                WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
                        | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
                        | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
                PixelFormat.TRANSLUCENT);
    }
    wm = (WindowManager) getSystemService(WINDOW_SERVICE);
    FrameLayout noTouchUi = new FrameLayout(this);
    wm.addView(noTouchUi,params);

}

我在这里设置了一个 FrameLayout noTouchUi 以使用 onTouchListener

的服务拦截触摸作为覆盖
        noTouchUi.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            Log.d(TAG,"touch event");
            return true;
        }
    });

这在 Android 8 上正常工作,但在 Android 7 上不起作用,叠加层显示正常,但叠加层后面的项目被点击。我想做的是阻止该点击。

更改类型自:

WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY

至:

WindowManager.LayoutParams.TYPE_PHONE

并删除标志:

WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL

和:

WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH