Patrick Lynch patricklynch

patricklynch / gist:8cd7d3175881101738b7

Last active August 29, 2015 14:23

Safer use of responder chain in Swift

	import UIKit

	protocol FollowResponder: NSObjectProtocol {
	func followUser( completion:(()->())? )
	func unfollowUser( completion:(()->())? )
	}

	extension UIResponder {

	enum FollowAction: Selector {