ios - 使用CAKeyframeAnimation，push一个新的VC之后，pop返回时，动画停止了？

Question

使用CAKeyframeAnimation添加在当前VC的一个ImageView上，push一个新的VC之后，pop返回时动画停止了，repeatCount设置为CGFLOAT_MAX，有什么办法可以让动画不停止吗？

CAKeyframeAnimation *cka = [CAKeyframeAnimationanimationWithKeyPath:@"transform.scale"];

cka.values =   @[@0.7, @1.5, @1,   @1];
cka.keyTimes = @[@0.0, @0.3,  @0.3, @1];
cka.repeatCount = CGFLOAT_MAX;
cka.duration = 1.8;
[_pointView.layer addAnimation:cka forKey:@"cka"];

Answer 1

You can set the removedOnCompletion attribute to NO to allow VC to switch without stopping the animation.

cka.removedOnCompletion = NO;