我在一个名为的函数中有一个动画animateImages：
func animateImagesIn(step: Int){
if step == 0{
let bounds = self.guideView.stepOne.bounds
UIView.animateWithDuration(1.0, delay: 0.2, usingSpringWithDamping: 0.2, initialSpringVelocity: 10, options: nil, animations: {
self.guideView.stepOne.bounds = CGRect(x: bounds.origin.x - 20, y: bounds.origin.y, width: bounds.size.width + 60, height: bounds.size.height)
}, completion: nil)
}
if step == 1{
let boundsOne = self.guideView.stepTwoLeft.bounds
let boundsTwo = self.guideView.stepTwoRight.bounds
UIView.animateWithDuration(1.0, delay: 0.2, usingSpringWithDamping: 0.2, initialSpringVelocity: 10, options: nil, animations: {
self.guideView.stepTwoLeft.bounds = CGRect(x: boundsOne.origin.x + 20 , y: boundsOne.origin.y, width: boundsOne.size.width + 60, height: boundsOne.size.height)
self.guideView.stepTwoRight.bounds = CGRect(x: boundsTwo.origin.x + 20 , y: boundsTwo.origin.y, width: boundsTwo.size.width + 60, height: boundsTwo.size.height)
}, completion: nil)
}
}
viewDidAppear如果我在添加到滚动视图之前从 调用该函数，它可以工作：
for index in 0...currentDictionary.count-1{
println("dictionary index \(index)")
guideView = GuideView()
var guide = currentDictionary["\(index)"]
guideView.frame = CGRectMake(xLoc, heightOffset, width, height-heightOffset)
guideView.title.text = guide?.title.text
guideView.subtitle.text = guide?.description.text
if index == 0{
guideView.stepOne.image = UIImage(named: "step1")
guideView.stepOne.contentMode = .ScaleAspectFit
animateImagesIn(index)
}
if index == 1{
guideView.stepTwoLeft.image = UIImage(named: "giving hand")
guideView.stepTwoRight.image = UIImage(named: "receiving hand")
animateImagesIn(index)
}
scrollView.addSubview(guideView)
xLoc = xLoc + (width)
}
但如果我在里面调用它scrollViewDidEndDecelerating()，它不会：
func scrollViewDidEndDecelerating(scrollView: UIScrollView) {
var currentIndex = scrollView.contentOffset.x/UIScreen.mainScreen().bounds.width
for subIndex in 0...currentDictionary.count-1{
if (Int(currentIndex) == subIndex){
createCarousel(Int(currentIndex))
animateImagesIn(Int(currentIndex))
}
}
}
请告诉我我哪里弄错了？谢谢！