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小规模动画按预期工作，但缩放动画恢复到正常大小确实有点奇怪;它将动画做到正常范围，但是它再次执行相同的动画，但速度更快。CABasicAnimation似乎执行两个动画
这里是我的代码：
func changeState(sender:UIButton){
println(insideSolidLayer.animationKeys())
if (shouldAnimate){
shouldAnimate = false
if (on){
animateSolidAway()
}else{
animateSolidIn()
}
on = !on
}
}
func animateSolidAway(){
insideSolidLayer.transform = CATransform3DMakeScale(1, 1, 1)
let scaleAnimate:CABasicAnimation = CABasicAnimation(keyPath: "transform.scale")
scaleAnimate.fromValue = 1
scaleAnimate.toValue = 0
scaleAnimate.duration = 0.2;
scaleAnimate.delegate = self
scaleAnimate.removedOnCompletion = false
scaleAnimate.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseIn)
insideSolidLayer.addAnimation(scaleAnimate, forKey: "scaleSmallAnimation")
}
func animateSolidIn(){
insideSolidLayer.transform = CATransform3DMakeScale(0, 0, 0)
let scaleAnimate:CABasicAnimation = CABasicAnimation(keyPath: "transform.scale")
scaleAnimate.fromValue = 0
scaleAnimate.toValue = 1
scaleAnimate.duration = 3;
scaleAnimate.delegate = self
scaleAnimate.removedOnCompletion = false
scaleAnimate.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseOut)
insideSolidLayer.addAnimation(scaleAnimate, forKey: "scaleNormalAnimation")
}
override func animationDidStop(anim: CAAnimation!, finished flag: Bool) {
if(anim.isKindOfClass(CABasicAnimation)){
if (insideSolidLayer != nil && insideSolidLayer.animationKeys() != nil && insideSolidLayer.animationKeys().count > 0){
if contains(insideSolidLayer.animationKeys() as [String], "scaleSmallAnimation"){
if (anim == insideSolidLayer.animationForKey("scaleSmallAnimation")){
println("-animationDidStop- -scaleSmallAnimation-")
insideSolidLayer.transform = CATransform3DMakeScale(0, 0, 0)
shouldAnimate = true
}
}
if contains(insideSolidLayer.animationKeys() as [String], "scaleNormalAnimation"){
if (anim == insideSolidLayer.animationForKey("scaleNormalAnimation")){
println("-animationDidStop- -scaleNormalAnimation-")
insideSolidLayer.transform = CATransform3DMakeScale(1, 1, 1)
shouldAnimate = true
}
}
}
}
}