`touchesBegan:withEvent:` is delayed at left edge of screen

Question

I\'m experiencing an issue where the first call to touchesBegan:withEvent: on a UIView or UIViewController is delayed when you touch o

Answer 1

Like danialias I'm working on a game. The solution I found (currently working, tested on an iPhone with 3D Touch enabled, where this was a real issue up to this point..) works for both games/apps:

It seems that UITapGestureRecognizer doesn't suffer from this delay, so simply add one to your view, and use it to handle taps.

In my game, I store touches and handle them on every interval update, so I overrode

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch

and there I stored the UITouch instance and returned NO.

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
    [self.touches addObject:touch];
    return NO;
}