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POdispatching touch events from overlay view to background
 

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  1. POdispatching touch events from overlay view to background
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    <p>I have the following service to display an overlay view over every app in the system and getting the touch events. Because of the TYPE_SYSTEM_ALERT the touches can't go through to the background so it's useless. I thought that I could obtaing a MotionEvent and dispatch it to the background view using the same x,y that I just detected. </p> <p>**QUESTION: How do I define the background view to which I will send the event?. Given that I can detect at all times what the foreground application is, can I define a view of that window so that i can dispatch the event?</p> <pre><code>public class OverlayService extends Service { LinearLayout oView; @Override public IBinder onBind(Intent i) { return null; } @Override public void onCreate() { super.onCreate(); oView = new LinearLayout(this); oView.setBackgroundColor(0x88ff0000); // The translucent red color WindowManager.LayoutParams params = new WindowManager.LayoutParams( WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.TYPE_SYSTEM_ALERT, 0 | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE, PixelFormat.TRANSLUCENT); WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE); wm.addView(oView, params); oView.setOnTouchListener(new View.OnTouchListener() { @SuppressLint("Recycle") @Override public boolean onTouch(View v, MotionEvent event) { // TODO Auto-generated method stub switch (event.getAction()){ case MotionEvent.ACTION_DOWN: int x = (int) event.getX(); int y = (int) event.getY(); long downTime = SystemClock.uptimeMillis(); long eventTime = SystemClock.uptimeMillis() + 100; // List of meta states found here: developer.android.com/reference/android/view/KeyEvent.html#getMetaState() int metaState = 0; MotionEvent motionEvent = MotionEvent.obtain( downTime, eventTime, MotionEvent.ACTION_DOWN, x, y, metaState ); Toast.makeText(getBaseContext(), Integer.toString(x)+" "+Integer.toString(y), Toast.LENGTH_SHORT).show(); // Dispatch touch event to background // ? // ? // Dispatch touch event to background } // Obtain MotionEvent object return false; } }); } @Override public void onDestroy() { super.onDestroy(); if(oView!=null){ WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE); wm.removeView(oView); } } } </code></pre>
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    1. USAnonymous
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    1. COfortunatelly its not possible
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      1. USpskink
    2. COit is possible. GMD Gesture Control does it. as for the fortunatelly comment: not everyone has bad intentions.
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      1. USAnonymous
 

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