//

//  LiveImageView.swift

//  Swift-Animations

//

//  Created by YouXianMing on 16/8/17.

//  Copyright © 2016年 YouXianMing. All rights reserved.

//

import UIKit

// MARK: Public class : LiveImageView

class LiveImageView: UIImageView {

    // MARK: Properties.

    /// Animation's duration.

    var duration : CFTimeInterval = 0.3

    // MARK: Methods.

    /**

     Set image with animation or not.

     - parameter newVal:   The new image.

     - parameter animated: Animated or not.

     */

    func setImage(newVal : UIImage, animated : Bool) {

        if animated == true {

            let animation       = CABasicAnimation(keyPath: "contents")

            animation.fromValue = image?.CGImage

            animation.toValue   = newVal.CGImage

            animation.duration  = duration

            pLayer.contents = image?.CGImage

            pLayer.addAnimation(animation, forKey: nil)

            image = newVal

        } else {

            image = newVal

        }

    }

    // MARK: Private value & func.

    private var pLayer : CALayer!

    override init(frame: CGRect) {

        super.init(frame: frame)

        pLayer = layer

    }

    required init?(coder aDecoder: NSCoder) {

        fatalError("init(coder:) has not been implemented")

    }

}

//

//  LiveImageViewController.swift

//  Swift-Animations

//

//  Created by YouXianMing on 16/8/17.

//  Copyright © 2016年 YouXianMing. All rights reserved.

//

import UIKit

class LiveImageViewController: NormalTitleViewController {

    var timer  : GCDTimer!  = GCDTimer(inQueue: GCDQueue.mainQueue)

    var count  : NSInteger! =

    var images : [UIImage]! = [UIImage]()

    override func setup() {

        super.setup()

        images = [UIImage]()

        images.append(UIImage(named: "pic_1")!)

        images.append(UIImage(named: "pic_2")!)

        images.append(UIImage(named: "pic_3")!)

        images.append(UIImage(named: "pic_4")!)

        let image                       = images[]

        let liveImageView               = LiveImageView(frame: CGRectMake(, , image.size.width, image.size.height))

        liveImageView.center            = (contentView?.middlePoint)!

        liveImageView.layer.borderWidth =

        liveImageView.layer.borderColor = UIColor.blackColor().CGColor

        liveImageView.duration          = 0.5

        contentView?.addSubview(liveImageView)

        weak var wself = self

        timer.event({

            let currentIndex = (wself?.count)! % (wself?.images.count)!

            wself?.count     = (wself?.count)! + 

            liveImageView.setImage(wself!.images[currentIndex], animated: true)

            UIView.animateWithDuration(0.5, animations: {

                var tmpRect          = liveImageView.bounds

                tmpRect.size         = (liveImageView.image?.size)!

                liveImageView.bounds = tmpRect

                liveImageView.center = (wself?.contentView?.middlePoint)!

            })

            }, timeIntervalWithSeconds: 1.0)

        timer.start()

    }

}