특정 뷰를 일정시간 동안 눌렀을 경우 동작하도록 하는 코드

LongPressedExample.swift

//
//  ViewController.swift
//  ViewTest
//
//  Created by JungMin Ahn on 2015. 5. 20..
//  Copyright (c) 2015년 JungMin Ahn. All rights reserved.
//

import UIKit

typealias ElapsedF = (Void -> Bool)

private let kLongPressTime = 30

class ViewController: UIViewController {

	@IBOutlet var redView: UIView!

	var pressedTouchTimer: NSTimer?
	var elapsedHandler: ElapsedF?
	var longPress: UILongPressGestureRecognizer!

	override func viewDidLoad() {
		super.viewDidLoad()
		self.attachLongPressGesture()
	}

	deinit {
		self.stopTimer()
	}

}

extension ViewController {
	func attachLongPressGesture() {
		self.stopTimer()
		self.redView.removeGestureRecognizer(longPress)
		longPress = UILongPressGestureRecognizer(target: self, action: Selector("handleLongPressGesture:"))
		longPress.minimumPressDuration = 0.01
		self.redView.addGestureRecognizer(longPress)
	}

	func handleLongPressGesture(recogizer: UILongPressGestureRecognizer) {
		switch recogizer.state {
		case .Began:
			self.startTimer()
		case .Ended, .Cancelled, .Failed:
			self.stopTimer()
		case .Changed:
			guard let lView = recogizer.view else { return }
			if !CGRectContainsPoint(lView.frame, recogizer.locationInView(lView.superview)) {
				self.attachLongPressGesture()
			}
		default: break
		}
	}
}

extension ViewController {
	func makeElapsedTime() -> ElapsedF {
		var elapsedTime = kLongPressTime
		return {
			if --elapsedTime < 0 { elapsedTime = 0 }
			return elapsedTime == 0 ? true : false
		}
	}

	func startTimer() {
		self.elapsedHandler = makeElapsedTime()
		self.pressedTouchTimer = NSTimer.scheduledTimerWithTimeInterval(
			0.1,
			target: self,
			selector: Selector("longPressTimerHandler"),
			userInfo: nil,
			repeats: true)
	}

	func stopTimer() {
		self.pressedTouchTimer?.invalidate()
		self.pressedTouchTimer = nil
		self.elapsedHandler = nil
	}

	func longPressTimerHandler() {
		guard let isElapsedTime = self.elapsedHandler where isElapsedTime() else { return }
		self.attachLongPressGesture()

		// You can do everything
	}
}