How to cancel UIGestureRecognizer if subview's button pressed

Question

I am struggling to get the behaviour I would like from the gesture recognisers, specifically cancelling certain gestures if others have fired.

I have a scrollView set to

Answer 1

Swift 3

Set UITapGestureRecognizer

let tap = UITapGestureRecognizer(target: self, action: #selector(Class.didTap))
tap.delegate = self

UITapGestureRecognizer delegate method:

func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {
    return touch.view != buttonThatShouldCancelTapGesture
}