如何在iOS中停止UIView动画＆lt; 4

Question

有没有办法在iOS 3中停止动画？

我知道：

 #import <QuartzCore/QuartzCore.h>
 [view.layer removeAllAnimations];   

，但它仅适用于iOS 4.0

Answer 1

尝试使用此代码：

if([view.layer repondsToSelector:@selector(removeAllAnimations)]) //Check if the CALayer responds to removeAllAnimations method for iOS4+
    [view.layer removeAllAnimations];
else
    [view.layer addAnimation:nil forKey:@"TheKeyOfTheAnimation"]; // Change TheKeyOfTheAnimation with key you have added animation for, you can also use nil for the key...

更新：根据文档，自iOS2.0起，removeAllAnimations可用 removeAllAnimations 删除附加到接收器的所有动画。

- (void)removeAllAnimations
Availability
Available in iOS 2.0 and later.
Declared In
CALayer.h