UIEvent?) Tells this object that one or more new touches occurred in a view or window. func touchesMoved(Set<UITouch>, with: UIEvent?) Tells the responder when one or more touches associated with an event changed. func touchesEnded(Set<UITouch>, with: UIEvent?) Tells the responder when one or more fingers are raised from a view or window. func touchesCancelled(Set<UITouch>, with: UIEvent?) Tells the responder when a system event (such as a system alert) cancels a touch sequence. ‘