iphone - cocoa setAnimationDidStopSelector

Question

目前我有这段代码可以正常工作

[UIView setAnimationDidStopSelector:@selector(animationDone:finished:context:)];

- (void)animationDone:(NSString *)animationID finished:(BOOL)finished context:(void *)context {
// do stuff here
}

记录 animationID 的值给我一个 null。

如何将值传递给@selector？

我试过了

[UIView setAnimationDidStopSelector:@selector(animationDone:@"animation1"finished:context:)];

这给了我一个错误。

谢谢， 三通

Answer 1

传递给选择器的字符串是您在此方法调用中使用的字符串:

[UIView beginAnimations:@"your_animation_name_here" context:NULL];
[UIView setAnimationDuration:0.5];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(animationFinished:finished:context:)];
// whatever changes here
[UIView commitAnimations];

之后，您可以这样做:

- (void)animationFinished:(NSString *)animationID finished:(BOOL)finished context:(void *)context
{
    if ([animationID isEqualToString:@"your_animation_name_here"])
    {
        // something done after the animation
    }
}