Android: Detect if user touches and drags out of button region?

Question

In Android, how can we detect if a user touches on button and drags out of region of this button?

Answer 1

While the answer from @FrostRocket is correct you should use view.getX() and Y to account for translations changes as well:

 view.getHitRect(viewRect);
 if(viewRect.contains(
         Math.round(view.getX() + event.getX()),
         Math.round(view.getY() + event.getY()))) {
   // inside
 } else {
   // outside
 }