Animation in iPhone

I had added added Animation with five images . 

Observe carefully the output. 

It's only the matter of coordinates arrangements and property settings.

Just Follow these steps  
1. Create Project
2. Take five ImageView on Layout
3. Create Image View References in ViewController
4. Observe the output carefully

A. Code is as 

import UIKit

class ViewController: UIViewController {

    @IBOutlet var img1: UIImageView!

    @IBOutlet var img2: UIImageView!

    @IBOutlet var img3: UIImageView!

    @IBOutlet var img4: UIImageView!

    @IBOutlet var img5: UIImageView!

    override func viewDidLoad() {

        super.viewDidLoad()

        // Do any additional setup after loading the view, 

           typically from a nib.

    }

   

    override func viewDidLayoutSubviews() 

       // This function invoked before Layout become Visible 

    {

        img1.center = CGPointMake(img1.center.x ,     

                     img1.center.y + 1200)  // Bottom to Top

        img2.center = CGPointMake(img2.center.x - 400 , 

                      img2.center.y )  // Left to Right

        img3.center = CGPointMake(img3.center.x + 600, 

                      img3.center.y )   // Right to Left

        img4.center = CGPointMake(img4.center.x , 

                      img4.center.y - 400) // Top to Bottom

        img5.alpha = 0 ;     // Disappear

    }

    

    override func viewDidAppear(animated: Bool) 

      // Just invoke after App Launched 

   {

        

  UIView.animateWithDuration(2) // Animation Duration 2 secs

        {

        self.img1.center =  CGPointMake(self.img1.center.x , 

                            self.img1.center.y - 1200 )

        self.img2.center =  CGPointMake(self.img2.center.x + 

                            400 , self.img2.center.y  )

        self.img3.center =  CGPointMake(self.img3.center.x - 

                            600 , self.img3.center.y  )

        self.img4.center =  CGPointMake(self.img4.center.x , 

                            self.img4.center.y + 400 )

        self.img5.alpha = 1 ;

        }

    }

}

B. Output is as after 2 second of App launched