Question

I have a situation where I apply an effect to a UIView when a touch begins and reverse that effect when that touch ends. So basically I am tracking touchesbegan, touchesEnded and touchesCancelled methods of UIView.
But the problem is that when the view goes out of the screen, i.e. when it or one of its parents gets removed from superview, it does not get any more touch events. Is there any way to give this “last” touchesended event to the view? Maybe if the UIView gets notified about being invisible, I can also use this event for that purpose.

Ok I am going to move the answers in comments to original question to make a good summary of important points.

• The reason I am tracking touch events is that I want to apply some
  nice effects such as glowing on touch start and remove those effects
  on touch ending.
• The reason why I can not simulate touchesEnded on removing those
  views is that I do not directly remove them. Instead I remove one of
  the ancestor views of them. I can not keep track of ancestor views
  all the way to UIWindow, it is technically impossible I think.
  Instead, framework should provide this to as an event I think.

Answer 1

I solved my problem by overriding -(void)willMoveToWindow:(UIWindow *)newWindow method and checking if newWindow is nil.