问题描述
我正在macOS中开发纸牌游戏应用程序,并且面临以下问题
当前,我正在对从屏幕一个角到屏幕中心的视图进行动画处理,该视图可以正常工作,但是在视图进行动画处理时,如果用户在我想更新当前动画的目标位置时调整窗口大小,视图,因为该时间中心距离会有所不同。
这是我当前的工作代码,当窗口保持相同大小时可以正常工作,但是即使用户在进行动画操作期间调整窗口大小,我也无法弄清楚如何获得相同的结果。
func animateCards(cardViews: [NSView],duration: TimeInterval,fromSource: NSPoint,to destinations: [NSPoint],completion: @escaping (() -> Void)) {
self.completion = completion
self.cardViews = cardViews
self.animationsCount = 0
let count = cardViews.count
let eachCardDuration = duration/Double(count)
for (index,cardView) in cardViews.enumerated() {
let delay = eachCardDuration * Double(index)
dispatchQueue.main.asyncAfter(deadline: .Now() + delay) {
cardView.wantsLayer = true
guard let layer = cardView.layer else {
return
}
layer.position = fromSource
let anim = CABasicAnimation(keyPath: "position")
anim.fromValue = NSValue(point: fromSource)
anim.tovalue = NSValue(point: destinations[index])
anim.repeatCount = 1
anim.fillMode = .forwards
anim.timingFunction = camediatimingFunction(name: .easeInEaSEOut)
let visibilityAnimation = self.opacityAnimation(duration: CFTimeInterval(eachCardDuration),cardindex: index)
let groupAnimation = CAAnimationGroup()
groupAnimation.delegate = self
groupAnimation.animations = [ anim,visibilityAnimation]
groupAnimation.repeatCount = 1
//groupAnimation.beginTime = CACurrentMediaTime() + (eachCardDuration * Double(index)) + 0.1
groupAnimation.duration = CFTimeInterval(eachCardDuration)
layer.add(groupAnimation,forKey: "allAnimations")
cardView.frame.origin = destinations[index]
layer.position = destinations[index]
}
}
}
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解决方法
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