Swift降低内存消耗的imageView动画
2017-07-21 本文已影响0人
彩虹兔兔
之前播放动画用imageView自带的组动画,发现在4s上会因为内存警告crash,就替换成每间隔0.1s替换imageView的image
func showImages(times: Int) {
guard times < 42 else {
self.dismiss()
return
}
if let filePath = Bundle.main.path(forResource: "tickets-\(times).png", ofType: nil),
let ticketsImage = UIImage(contentsOfFile: filePath) {
self.animationView.image = ticketsImage
}
DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + 0.1, execute: {
self.showImages(times: times + 1)
})
}
func dismiss() {
UIView.animate(withDuration: 0.2, animations: {
self.animationView.alpha = 0.0
}) { (_) in
self.animationView.removeFromSuperview()
}
}
