本文介绍了animationDidStop 方法的多个 CAAnimations?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我知道你必须使用这个方法来获取动画结束时的委托方法:
I know you have to use this method to get the delegate method for when the animation has finished:
- (void)animationDidStop:(CAAnimation *)theAnimation finished:(BOOL)flag {
问题是，我如何区分多个 CAAnimations，比如 2 个或更多?
The problem is, how would I distinguish between multiple CAAnimations like 2 or more?
我用谷歌搜索了这个，但没有发现任何有用的东西.
I googled this and I haven't found anything useful.
请与我分享你是如何做到这一点的！
Please share with me on how you accomplished this!
谢谢！
推荐答案
您可以像这样为 CAAnimation 实例设置键/值对象:
You can set key/value objects for CAAnimation instance like this:
CABasicAnimation *theAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];
[theAnimation setValue:@"animation1" forKey:@"id"];
theAnimation.delegate = self;
CABasicAnimation *theAnimation2 = [CABasicAnimation animationWithKeyPath:@"opacity"];
[theAnimation2 setValue:@"animation2" forKey:@"id"];
theAnimation2.delegate = self;
检查委托方法中调用了哪一个:
Check which one was called in delegate method:
- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag{
if([[anim valueForKey:@"id"] isEqual:@"animation1"]) {
NSLog(@"animation1");
}
if([[anim valueForKey:@"id"] isEqual:@"animation2"]) {
NSLog(@"animation2");
}
}
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