When touches Cancelled method get invoked in iPhone?

Question

I am able to understand that when user just touches the view, touches Began and Ended called. When user swipes their hand on a view, touches Moved method gets called. But when d

Answer 1

Note: touches also get cancelled if you start a UIView animation after touchesBegan. To prevent this make sure you include UIViewAnimationOptionAllowUserInteraction:

e.g.

[UIView animateWithDuration:0.3 delay:0 options:UIViewAnimationOptionAllowUserInteraction animations:^{
            self.aView.hidden = NO;
            self.aView.alpha = 1;
        } completion:nil];