CATransition动画主要在过渡时使用,比如两个页面层级改变的时候添加一个转场效果。CATransition分为两类,一类是公开的动画效果,一类是非公开的动画效果。
1,公开动画效果:
kCATransitionFade:翻页
kCATransitionMoveIn:弹出
kCATransitionPush:推出
kCATransitionReveal:移除
2,非公开动画效果:
"cube":立方体
"suckEffect":吸收
"oglFlip":翻转
"rippleEffect":波纹
"pageCurl":卷页
"cameraIrisHollowOpen":镜头开
"cameraIrisHollowClose":镜头关
3,动画方向类型:
kCATransitionFromRight:从右侧开始实现过渡动画
kCATransitionFromLeft:从左侧开始实现过渡动画
kCATransitionFromTop:从顶部开始实现过渡动画
kCATransitionFromBottom:从底部开始实现过渡动画
4,下面通过一个样例演示:
页面上添加两个分别是红色,蓝色的UIView。当点击屏幕的时候,这两个UIView层级切换,同时会有从左向右推出的效果。
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import UIKit class ViewController : UIViewController { override func viewDidLoad() { super .viewDidLoad() var redView: UIView = UIView (frame: CGRectMake (20,20,280,400)) redView.backgroundColor = UIColor .redColor() self .view.insertSubview(redView, atIndex: 0) var blueView: UIView = UIView (frame: CGRectMake (20,20,280,400)) blueView.backgroundColor = UIColor .blueColor() self .view.insertSubview(blueView, atIndex: 1) } //点击切换两个红蓝视图 override func touchesBegan(touches: Set < NSObject >, withEvent event: UIEvent ) { var transition = CATransition () transition.duration = 3.0 transition.type = kCATransitionPush //推送类型 transition.subtype = kCATransitionFromLeft //从左侧 self .view.exchangeSubviewAtIndex(1, withSubviewAtIndex: 0) self .view.layer.addAnimation(transition, forKey: nil ) } override func didReceiveMemoryWarning() { super .didReceiveMemoryWarning() } } |