Swift - transform.m34动画示例

 

效果

 

源码

////  CATransform3DM34Controller.swift//  Swift-Animations////  Created by YouXianMing on 16/8/19.//  Copyright © 2016年 YouXianMing. All rights reserved.//import UIKitclass CATransform3DM34Controller: NormalTitleViewController {    var layer          : CALayer!    var timer          : GCDTimer!    var transformState : Bool! = false        override func setup() {                super.setup()                initLayer()                timerEvent()    }        func initLayer() {                let image         = UIImage(named: "1")        layer             = CALayer()        layer.frame       = CGRectMake(0, 0, image!.size.width / 2, image!.size.height / 2)        layer.position    = (contentView?.middlePoint)!        layer.borderWidth = 4        layer.borderColor = UIColor.blackColor().CGColor        layer.contents    = image?.CGImage        contentView?.layer.addSublayer(layer)    }        func timerEvent() {                weak var wself = self        timer = GCDTimer(inQueue: GCDQueue.mainQueue)        timer.event({                        if wself?.transformState == false {                            wself?.transformState = true                wself?.transformStateEvent()                            } else {                            wself?.transformState = false                wself?.normalStateEvent()            }                        }, timeIntervalWithSeconds: 2.0, delayWithSeconds: 1.0)        timer.start()    }    func transformStateEvent() {                var perspectiveTransform = CATransform3DIdentity        perspectiveTransform.m34 = -(1.0 / 500.0)        perspectiveTransform     = CATransform3DTranslate(perspectiveTransform, 30, -35, 0)        perspectiveTransform     = CATransform3DRotate(perspectiveTransform, Math.RadianFromDegree(30), 0.75, 1, -0.5)        perspectiveTransform     = CATransform3DScale(perspectiveTransform, 0.75, 0.75, 0.75)                layer.transform              = perspectiveTransform        layer.allowsEdgeAntialiasing = true        layer.speed                  = 0.5    }        func normalStateEvent() {                let perspectiveTransform = CATransform3DIdentity        layer.transform          = perspectiveTransform        layer.speed              = 0.5    }}