停止UIView动画

Question

可能重复:
取消UIView动画？

我有以下动画,我想按下按钮时停止它.你能告诉我我该怎么办？我无法弄清楚如何.谢谢.

-(void)animationLoop:(NSString *)animationID finished:(NSNumber *)finished context:(void    *)context 
{
[UIView beginAnimations:@"Move randomly" context:nil]; 
[UIView setAnimationDuration:1]; 
// [UIView setAnimationBeginsFromCurrentState:NO];


CGFloat x = (CGFloat) (arc4random() % (int) self.bounds.size.width); 
CGFloat y = (CGFloat) (arc4random() % (int) self.bounds.size.height); 

CGPoint squarePostion = CGPointMake(x, y); 
strechView.center = squarePostion; 

[UIView setAnimationDelegate:self]; 
[UIView setAnimationDidStopSelector:@selector(animationLoop:finished:context:)];

[UIView commitAnimations];

} 

Answer 1

试试这个:

[myView.layer removeAllAnimations];

并确保也导入Quartz框架:

#import <QuartzCore/QuartzCore.h>

在QuartzCore框架中使用CoreAnimation应用动画,甚至是UIView动画方法.只需定位要停止动画的视图层,然后删除其动画即可.