iphone - 如何获取动画结束通知

Question

我想在动画结束后做一些 Action 。

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.80f];
self.view.transform = 
CGAffineTransformMakeTranslation(
                                 self.view.frame.origin.x, 
                                 480.0f + (self.view.frame.size.height/2)  // move the whole view offscreen
                                 );
[self.view setAlpha:0];
[UIView commitAnimations];

我已经像上面那样做了动画，如何找出动画结束，以便我可以在之后做我的 Action 。

Answer 1

使用这个:

    [UIView animateWithDuration:0.80f animations:^{
    self.view.transform =
    CGAffineTransformMakeTranslation(
                                     self.view.frame.origin.x,
                                     480.0f + (self.view.frame.size.height/2)  // move the whole view offscreen
                                     );
    [self.view setAlpha:0];
    }
    completion:^(BOOL finished){
        // your code
    }];