UIView transitionWithView swift 语法 [英] UIView transitionWithView swift syntax

问题描述

可以帮助我快速了解 transitionWithView 的语法吗?在objective-c中，我会像这样使用它:

Can some help me with the syntax of the transitionWithView in swift. in objective-c I would use it like so:

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

但是我无法让完成处理程序工作.谢谢

However I can not get the completion handler to work. thanks

推荐答案

在 Swift 5.x 中应该是这样的:

it would be like this in Swift 5.x:

UIView.transition(with: self.view, duration: 0.325, options: .curveEaseInOut, animations: {

    // animation

}) { finished in

    // completion

}

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