Butona basılı tutma ile tetiklenen bir örnek

HoldButton.swift

//
//  ViewController.swift
//  HoldButtonTest
//
//  Created by CBS MOBIL on 17.01.2017.
//  Copyright © 2017 CBS MOBİL. All rights reserved.
//

import UIKit

class ViewController: UIViewController {

    @IBOutlet var button: UIButton!
    @IBOutlet var lblNumber: UILabel!
    
    var timer: Timer!
    var speedAmmo = 50
    
    @IBAction func buttonDown(sender: AnyObject) {
        singleFire()
        timer = Timer.scheduledTimer(timeInterval: 0.1, target: self, selector:#selector(rapidFire), userInfo: nil, repeats: true)
    }
    
    @IBAction func buttonUp(sender: AnyObject) {
        timer.invalidate()
    }
    
    func singleFire() {
        if speedAmmo > 0 {
            speedAmmo -= 1
            print("bang!")
            let value : Int = Int(lblNumber.text!)!+1
            lblNumber.text = String(describing: value)
        } else {
            print("out of speed ammo, dude!")
            timer.invalidate()
        }
    }
    
    func rapidFire() {
        if speedAmmo > 0 {
            speedAmmo -= 1
            print("bang!")
            let value : Int = Int(lblNumber.text!)!+1
            lblNumber.text = String(describing: value)
        } else {
            print("out of speed ammo, dude!")
            timer.invalidate()
        }
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        button.addTarget(self, action:#selector(buttonDown(sender:)), for: .touchDown)
        button.addTarget(self, action:#selector(buttonUp(sender:)), for: [.touchUpInside, .touchUpOutside])
    }
    
  }