ios - 动画 removeFromSuperview

Question

我想制作从 subview 返回到 super View 的动画。

我使用以下方式显示 subview :

[UIView beginAnimations:@"curlup" context:nil];
[UIView setAnimationDelegate:self];
[UIView setAnimationDuration:.5];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view cache:YES];
[self.view addSubview:self.mysubview.view];
[UIView commitAnimations];

以上工作正常。又回到了我没有得到任何动画的 super View :

[UIView beginAnimations:@"curldown" context:nil];
[UIView setAnimationDelegate:self];
[UIView setAnimationDuration:.5];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlDown forView:self.view cache:YES];
[self.view removeFromSuperview];
[UIView commitAnimations];

我应该做些什么来让 subview 在移除时具有动画效果？

Answer 1

如果您的目标是 iOS 4.0 以上版本，您可以改用动画 block :

[UIView animateWithDuration:0.2
     animations:^{view.alpha = 0.0;}
     completion:^(BOOL finished){ [view removeFromSuperview]; }];

(以上代码来自Apple's UIView documentation)