UIView transitionWithView swift语法

有些人可以用swift的transitionWithView的语法来帮助我。 在Objective-C中，我会像这样使用它：

[UIView transitionWithView:[ self view ] duration:0.325 options:UIViewAnimationOptionCurveEaseOut animations: ^{ // do the transition } completion: ^( BOOL finished ){ // cleanup after the transition }]; 

但是我不能让完成处理程序工作。 谢谢

Answer 1

在Swift中会是这样的：

 UIView.transitionWithView(self.view, duration: 0.325, options: UIViewAnimationOptions.CurveEaseInOut, animations: { // animation }, completion: { (finished: Bool) -> () in // completion }) 

Answer 2

我想添加到接受的答案，您可以传递多个选项到transitionWithView传递一个数组，如下所示：

Swift 2.0

  UIView.transitionWithView(status, duration: 0.33, options: [.CurveEaseOut, .TransitionCurlDown], animations: { //...animations }, completion: {_ in //....transition completion delay(seconds: 2.0) { } }) 

Swift 1.2

 UIView.transitionWithView(status, duration: 0.33, options: .CurveEaseOut | .TransitionCurlDown, animations: { //...animations }, completion: {_ in //transition completion delay(seconds: 2.0) { } }) 

当然你也可以使用这种完全合格的语法：

 [UIViewAnimationOptions.CurveEaseOut, UIViewAnimationOptions.TransitionCurlDown] 

Answer 3

Swift 3

 UIView.transition(with: someview, duration:0.6, options:UIViewAnimationOptions.transitionFlipFromLeft, animations: { // do something }, completion:{ finished in // do something }) 

Answer 4

该文件是有点棘手，但这应该工作：

 UIView.transitionWithView(self.view, duration:0.325, options: options:UIViewAnimationOptions.CurveEaseOut, animations: { … }, completion: { finished in … }) 

如果你想要completion处理程序，你可以使用尾随闭包 ，但是在这种情况下我不会太杂乱/不清楚。

但是如果你不打算通过一个animation块，它将是边界可读的：

 UIView.transitionWithView(self.view, duration:0.325, options: options:UIViewAnimationOptions.CurveEaseOut, animations: nil) { finished in … }