CAAnimation相关

最新推荐文章于 2026-01-09 13:14:44 发布

原创最新推荐文章于 2026-01-09 13:14:44 发布 · 787 阅读

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本文介绍如何在iOS开发中使用Core Animation框架的CAAnimation类来区分不同的动画结束事件，并通过设置动画代理实现特定动画完成后的操作。

在一个delegate函数里面区分不同的caanimation

CATransition *animation = [CATransition
animation];
[animation 
setType:kCATransitionFade];
[animation 
setSubtype:kCATransitionFromTop];
[animation 
setDelegate:self];
[hearingAidHalo
setBackgroundImage:[UIImage
imageNamed:@"m13_grayglow.png"]
forState:UIControlStateNormal];
[animation 
setDuration:2.0];
[animation 
setValue:@"Throb"
forKey:@"MyAnimationType"];
[[hearingAidHalo
layer] 
addAnimation:animation 
forKey:nil];
 
- (void)animationDidStop:(CAAnimation *)theAnimation
finished:(BOOL)flag{
 
    NSString* value = [theAnimation
valueForKey:@"MyAnimationType"];
    if
([value isEqualToString:@"Throb"])
    {
       //... Your code here ...
       return;
    }
 
    if
([value isEqualToString:@"Special1"])
    {
       //... Your code here ...
       return;
    }
 
    //Add any future keyed animation operations when the animations are stopped.
}

2.CAAnimationGroup

Important: The delegate and removedOnCompletion properties of animations in the animations array are currently ignored. The CAAnimationGroup delegate does receive these messages.

3.要让一个ca动画终止后，保留末状态，在设置removedOnCompletion = NO后，还得设置fillMode = kCA…..Forward 这个宏名字不太记得了。。。