Ios 动画代理未转换为Swift 3.0
我想实现CABasicAnimation,并在动画完成时通知UIViewController。从该资源: 我知道我可以将viewcontroller指定为动画的代理,并覆盖viewcontroller中的Ios 动画代理未转换为Swift 3.0,ios,swift,delegates,core-animation,caanimation,Ios,Swift,Delegates,Core Animation,Caanimation,我想实现CABasicAnimation,并在动画完成时通知UIViewController。从该资源: 我知道我可以将viewcontroller指定为动画的代理,并覆盖viewcontroller中的animationDidStop方法。但是,当我将以下代码行转换为Swift时: [animation setDelegate:self]; 像这样: animation.delegate=self//没有setDelegate方法 XCode投诉: Cannot assign value
animationDidStop
方法。但是,当我将以下代码行转换为Swift时:
[animation setDelegate:self];
像这样:
animation.delegate=self//没有setDelegate方法
XCode投诉:
Cannot assign value of type 'SplashScreenViewController' to type 'CAAnimationDelegate?'
我做错了什么?我遗漏了什么吗?您需要确保viewController符合CAAnimationDelegate
class SplashScreenViewController: UIViewController, CAAnimationDelegate {
// your code, viewDidLoad and what not
override func viewDidLoad() {
super.viewDidLoad()
let animation = CABasicAnimation()
animation.delegate = self
// setup your animation
}
// MARK: - CAAnimation Delegate Methods
func animationDidStart(_ anim: CAAnimation) {
}
func animationDidStop(_ anim: CAAnimation, finished flag: Bool) {
}
// Add any other CAAnimationDelegate Methods you want
}
您还可以通过使用扩展来符合委托:
extension SplasScreenViewController: CAAnimationDelegate {
func animationDidStart(_ anim: CAAnimation) {
}
func animationDidStop(_ anim: CAAnimation, finished flag: Bool) {
}
}