//

//  ViewController.swift

//  CAKeyframeAnimation

//

//  Created by Wengrp on 16/12/1.

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

//

import UIKit

class ViewController: UIViewController {

var imageView: UIView!

override func viewDidLoad() {

super.viewDidLoad()

// Do any additional setup after loading the view.

let animation = CAKeyframeAnimation(keyPath: "position")

//设置5个位置点

let p1 = CGPointMake(100.0, 100.0)

let p2 = CGPointMake(300, 100.0)

let p3 = CGPointMake(100.0, 400)

let p4 = CGPointMake(300, 400)

let p5 = CGPointMake(150, 200)

//赋值

animation.values = [NSValue(CGPoint: p1), NSValue(CGPoint: p2),

NSValue(CGPoint: p3), NSValue(CGPoint: p4), NSValue(CGPoint: p5)]

//每个动作的时间百分比

animation.keyTimes = [NSNumber(float: 0.0), NSNumber(float: 0.4),

NSNumber(float: 0.6), NSNumber(float: 0.8), NSNumber(float: 1.0), ]

animation.delegate = self

animation.duration = 6.0

imageView = UIView(frame: CGRectMake(100, 100, 100, 100))

imageView.backgroundColor = UIColor.cyanColor()

imageView.layer.addAnimation(animation, forKey: "Image-Move")

self.view.addSubview(imageView)

}

override func animationDidStart(anim: CAAnimation) {

print("动画开始")

}

override func animationDidStop(anim: CAAnimation, finished flag: Bool) {

print("动画结束")

}

override func didReceiveMemoryWarning() {

super.didReceiveMemoryWarning()

// Dispose of any resources that can be recreated.

}

}