Mac Swift Animation 1

Ref:https://www.codementor.io/swift/tutorial/view-animations-ios-tutorial
1. Open a new SingleView project
2. Open Main.storyboard
    Add ImageView Control
3. Open Assets.xcassets
     Right button click : Add new image set
     Drop Image file
4. Add ImageView (image)
5. Add animation function in ViewController.swift

//

//  ViewController.swift

//  SWANPNG1

//

//  Created by Jou CS on 2016/8/1.

//  Copyright © 2016年 Jou CS. All rights reserved.

//

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {

        super.viewDidLoad()

        // Do any additional setup after loading the view, typically from a nib.

    }

    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

        // Dispose of any resources that can be recreated.

    }

// 1. drag ImageView control into here : declare (MVC)

    @IBOutlet weak var vIMG1: UIImageView!

    

// 2. Override function of viewWillAppear    

    override func viewWillAppear(animated: Bool) {

        super.viewWillAppear(animated)

        

    }

// 3. Override function of viewDidAppear

    

    override func viewDidAppear(animated: Bool) {

        super.viewDidAppear(animated)

        UIView.animateWithDuration(5, animations: {

            self.vIMG1.backgroundColor = UIColor.blueColor();

        })

        

    }

}

 











4. Repeat, Autoreverse

 //UIView.animateWithDuration(5, animations: {

 //    self.vIMG1.backgroundColor = UIColor.blueColor();

 // })

 UIView.animateWithDuration(5, delay: 0.5, options: [.Repeat, .Autoreverse], animations:{ self.vIMG1.backgroundColor = UIColor.blueColor();}, completion: nil)