为什么不调用动画停止选择器？

Question

我动画停止后，我使用以下代码调用方法

[UIView beginAnimations:@"swipe" context:NULL];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(transitionDidStop:finished:context:)];
[UIView setAnimationDuration:0.3f];

//My Animation

[UIView commitAnimations];

这是transitionDidStop方法的签名

- (void)transitionDidStop:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context

但我注意到即使在转换停止后也永远不会调用该方法。那是为什么？

Answer 1

因为你需要

- (void)transitionDidStop:(NSString *)animationID finished:(BOOL)finished context:(void *)context

方法

但你有

- (void)transitionDidStop:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context