iOS 4.2：使用块动画翻转图像 [英] iOS 4.2: Flip image using block animations

问题描述

我的应用程序中有这段代码：

I had this piece of code im my app:

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:imgView cache:YES];
    imgView.image = img2;
[UIView commitAnimations];

但是在iOS 4.0及更高版本中不鼓励使用此方法，我应该使用 transitionWithView：duration：options：animations：completion：

But use of this method is discouraged in iOS 4.0 and later, and I should use transitionWithView:duration:options:animations:completion:

我无法正常工作。谁能帮我？
Thx！

I cant get this to work properly. Can anyone help me? Thx!

推荐答案

[UIView transitionWithView:imgView    // use the forView: argument
                  duration:1          // use the setAnimationDuration: argument
                   options:UIViewAnimationOptionTransitionFlipFromLeft 
                          // check UIViewAnimationOptions for what options you can use
                animations:^{         // put the animation block here
                              imgView.image = img2;
                           }
                completion:NULL];     // nothing to do after animation ends.

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