swift中的转场动画

概述class ViewController: UIViewController {     @IBOutlet weak var layerView: UIView!          override func viewDidLoad() {         super.viewDidLoad()         // Do any additional setup after loading t class VIEwController: UIVIEwController {

@IBOutlet weak var layerVIEw: UIVIEw!

overrIDe func vIEwDIDLoad() {
super.vIEwDIDLoad()
// Do any additional setup after loading the vIEw,typically from a nib.

// CATransition 是CAAnimation的子类 用于做转场动画，能够为层提供移出和移入屏幕的方法

}


overrIDe func touchesBegan(_ touches: Set<UItouch>,with event: UIEvent?) {

let Transition:CATransition = CATransition()

Transition.type = kCATransitionPush

Transition.subtype = kCATransitionFromBottom

Transition.duration = 8

Transition.isRemovedOnCompletion = true

let layerVIEwLayer = self.layerVIEw.layer

layerVIEwLayer.add(Transition,forKey: "")


}

overrIDe func dIDReceiveMemoryWarning() {
super.dIDReceiveMemoryWarning()
// dispose of any resources that can be recreated.
}

}

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