Overridden to reset internal state when a gesture recognition attempt completes.
- iOS 3.2+
- tvOS 9.0+
The runtime calls this method after the gesture-recognizer state has been set to
UIGesture—in other words, any of the terminal states for a gesture recognition attempt. Subclasses should reset any internal state in preparation for a new attempt at gesture recognition. After this method is called, the gesture recognizer receives no further updates for touches that have begun but haven't ended.