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IOS swift中的動畫的實例詳解
UIView的通用動畫
let view = UIView(frame: CGRectMake(10.0, 10.0, 100.0, 40.0))
self.view.addSubview(view)
view.backgroundColor = UIColor.lightGrayColor()
// 位置改變
var frame = view.frame
UIView.animateWithDuration(0.6, delay: 2.0, options: UIViewAnimationOptions.CurveEaseInOut, animations: {
() -> Void in
frame.origin.x = 200.0
view.frame = frame
}) {
(finished:Bool) -> Void in
UIView.animateWithDuration(0.6) {
() -> Void in
frame.origin.x = 10.0
view.frame = frame
}
}
CABasicAnimation核心動畫
1、CABasicAnimation類只有三個屬性：
fromValue：開始值 toValue：結束值 Duration：動畫的時間 repeatCount：重復次數
2、通過animationWithKeyPath鍵值對的方式設置不同的動畫效果
transform.scale transform.scale.x transform.scale.y transform.rotation.z opacity margin zPosition backgroundColor cornerRadius borderWidth bounds contents contentsRect cornerRadius frame hidden mask masksToBounds opacity position shadowColor shadowOffset shadowOpacity shadowRadius
let view = UILabel(frame: CGRectMake((self.view.frame.size.width - 200.0) / 2, 10.0, 200.0, 40.0)) self.view.addSubview(view) view.text = "縮放/淡入淡出" view.textAlignment = .Center view.adjustsFontSizeToFitWidth = true view.backgroundColor = UIColor.lightGrayColor() // let layer = view.layer // 開始動畫 // 縮放 let scaleAnimate = CABasicAnimation(keyPath: "transform.scale") scaleAnimate.fromValue = 1.0 scaleAnimate.toValue = 1.5 scaleAnimate.autoreverses = true scaleAnimate.repeatCount = MAXFLOAT scaleAnimate.duration = 1.0 // 淡入淡出 let opaqueAnimate = CABasicAnimation(keyPath: "opacity") opaqueAnimate.fromValue = 0.1 opaqueAnimate.toValue = 1 opaqueAnimate.autoreverses = true opaqueAnimate.repeatCount = MAXFLOAT opaqueAnimate.duration = 1.0 layer.addAnimation(scaleAnimate, forKey: "scaleAnimate") layer.addAnimation(opaqueAnimate, forKey: "opacityAnimate")
// 組合動畫 let view3 = UILabel(frame: CGRectMake(10.0, (currentView.frame.origin.y + currentView.frame.size.height + 10.0), 120.0, 40.0)) self.view.addSubview(view3) view3.text = "組合動畫" view3.textAlignment = .Center view3.adjustsFontSizeToFitWidth = true view3.backgroundColor = UIColor.lightGrayColor() // let layer3 = view3.layer // CAAnimationGroup組合動畫效果 let rotate: CABasicAnimation = CABasicAnimation() rotate.keyPath = "tranform.rotation" rotate.toValue = M_PI let scale: CABasicAnimation = CABasicAnimation() scale.keyPath = "transform.scale" scale.toValue = 0.0 let move: CABasicAnimation = CABasicAnimation() move.keyPath = "transform.translation" move.toValue = NSValue(CGPoint: CGPoint(x: 217, y: 230)) let animationGroup:CAAnimationGroup = CAAnimationGroup() animationGroup.animations = [rotate, scale, move] animationGroup.duration = 2.0 animationGroup.fillMode = kCAFillModeForwards animationGroup.removedOnCompletion = false animationGroup.repeatCount = MAXFLOAT // layer3.addAnimation(animationGroup, forKey: nil)
CAKeyframeAnimation關鍵幀動畫
主要屬性:
keyPath : 要設置的屬性 path : 路徑 可用UIBezierPath（設置了path，將忽略values） duration : 動畫時長 repeatCount : 重復次數 calculationMode : 動畫計算方式 values：每一個關鍵幀（設置了path，將忽略values） removedOnCompletion：執行完之后不刪除動畫 fillMode：執行完之后保存最新的狀態 delegate：代理
let view = UILabel(frame: CGRectMake((self.view.frame.size.width - 200.0) / 2, 10.0, 200.0, 40.0)) self.view.addSubview(view) view.text = "CAKeyframeAnimation動畫" view.backgroundColor = UIColor.lightGrayColor() // let layer = view.layer // 位移 let keyAnimate = CAKeyframeAnimation(keyPath: "position") // 設定關鍵幀 let value0 = NSValue(CGPoint: layer.position) let value1 = NSValue(CGPoint: CGPointMake(layer.position.x, layer.position.y + 200)) let value2 = NSValue(CGPoint: CGPointMake(layer.position.x - 150, layer.position.y + 200)) let value3 = NSValue(CGPoint: CGPointMake(layer.position.x - 150, layer.position.y)) let value4 = NSValue(CGPoint: layer.position) // 速度曲線 let tf0 = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut) let tf1 = CAMediaTimingFunction(name: kCAMediaTimingFunctionLinear) let tf2 = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseIn) let tf3 = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseOut) keyAnimate.timingFunctions = [tf0, tf1, tf2, tf3] // 每段執行的時間 keyAnimate.keyTimes = [0.0, 0.5, 0.6, 0.7, 1] // keyAnimate.values = [value0, value1, value2, value3, value4] keyAnimate.autoreverses = false keyAnimate.repeatCount = 3 keyAnimate.duration = 6.0 // keyAnimate.delegate = self // layer.addAnimation(keyAnimate, forKey: "position")
// 代理方法
override func animationDidStart(anim: CAAnimation) {
print("開始")
}
override func animationDidStop(anim: CAAnimation, finished flag: Bool) {
print("結束")
}
let view3 = UILabel(frame: CGRectMake(10.0, (currentView.frame.origin.y + currentView.frame.size.height + 10.0), 60.0, 60.0)) self.view.addSubview(view3) view3.text = "抖動" view3.backgroundColor = UIColor.lightGrayColor() // let layer3 = view3.layer // 抖動 let animation3 = CAKeyframeAnimation() animation3.keyPath = "transform.rotation" // (-M_PI_4 /90.0 * 5)表示-5度 。 let value31 = NSValue(CGPoint: CGPointMake(CGFloat(-M_PI_4 / 90.0 * 5.0), 0.0)) let value32 = NSValue(CGPoint: CGPointMake(CGFloat(M_PI_4 / 90.0 * 5.0), 0.0)) let value33 = NSValue(CGPoint: CGPointMake(CGFloat(-M_PI_4 / 90.0 * 5.0), 0.0)) animation3.values = [value31, value32, value33]; animation3.removedOnCompletion = false animation3.fillMode = kCAFillModeForwards animation3.duration = 0.2 animation3.repeatCount = MAXFLOAT // layer3.addAnimation(animation3, forKey: nil)
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