This might be a stupid solution. But it works. If you can improve it, please let me know.
OnCreate of your Service: I have used WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH
flag. This is the only change in service.
@Override
public void onCreate() {
super.onCreate();
Toast.makeText(getBaseContext(),"onCreate", Toast.LENGTH_LONG).show();
mView = new HUDView(this);
WindowManager.LayoutParams params = new WindowManager.LayoutParams(
WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
PixelFormat.TRANSLUCENT);
params.gravity = Gravity.RIGHT | Gravity.TOP;
params.setTitle("Load Average");
WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);
wm.addView(mView, params);
}
Now, you will start getting each and every click event. So, you need to rectify in your event handler.
In your ViewGroup touch event
@Override
public boolean onTouchEvent(MotionEvent event) {
// ATTENTION: GET THE X,Y OF EVENT FROM THE PARAMETER
// THEN CHECK IF THAT IS INSIDE YOUR DESIRED AREA
Toast.makeText(getContext(),"onTouchEvent", Toast.LENGTH_LONG).show();
return true;
}
Also you may need to add this permission to your manifest:
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />