Swift open 5 minutes session.

timeback.swift

//
//  ViewController.swift
//  TimeLapse
//
//  Created by Yasin Aktimur on 29.08.2016.
//  Copyright © 2016 Yasin Aktimur. All rights reserved.
//

import UIKit

class ViewController: UIViewController {
    
    
    
    var timer = NSTimer()
    var suan = NSDate()
    var besdksonra = NSDate()
    override func viewDidLoad() {
        super.viewDidLoad()
        
        
        let calendar = NSCalendar.currentCalendar()
        self.suan = NSDate()
        besdksonra = calendar.dateByAddingUnit(.Minute, value: 5, toDate: suan, options: [])!
        
       
        timer = NSTimer.scheduledTimerWithTimeInterval(10.0, target: self, selector: #selector(self.testordie), userInfo: nil, repeats: true)
        self.timer.fire()
        
        
        
        // Do any additional setup after loading the view, typically from a nib.
    }
    
    
    func testordie(){
         self.suan = NSDate()
        
        if self.besdksonra.timeIntervalSince1970 < suan.timeIntervalSince1970 {
            print("5 dk geçti")
            self.timer.invalidate()
            
        }else{
            
            print("CONT..")
        }
    }
    
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}