SplashScreen animation in Swift

gistfile1.swift

//
//  SplashViewController.swift
//  splashAnimation
//
//  Created by Burhan Aksendir on 26.03.2015.
//  Copyright (c) 2015 Aksendir. All rights reserved.
//

import UIKit

class SplashViewController: UIViewController {

    @IBOutlet weak var splashAnim: UIImageView!
    var timer = NSTimer()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
    }
    
    override func viewWillAppear(animated: Bool) {
        super.viewWillAppear(animated)
        
        
        splashAnim.animationImages = [UIImage]()
        
        for var index = 0; index < 25; index++ {
            var frameName = String(format: "animation_%02d", index)
            splashAnim.animationImages?.append(UIImage(named: frameName)!)
        }
        
        splashAnim.animationDuration = 1
        splashAnim.animationRepeatCount = 1
        splashAnim.startAnimating()
        
        timer = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: "endAnimation", userInfo: nil, repeats: false)
    }
    
    func endAnimation() {
        timer.invalidate()

        splashAnim.removeFromSuperview()
        splashAnim = nil
        
        self.performSegueWithIdentifier("toMainMenu", sender: nil)
    }
    
   
}