swift中的动画

UIView的通用动画@H_502_2@

let view = UIView(frame: CGRectMake(10.0,10.0,100.0,40.0))
self.view.addSubview(view)
view.backgroundColor = UIColor.lightGrayColor()
// 位置改变
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核心动画
1、CABasicAnimation类只有三个属性：
fromValue：开始值
toValue：结束值
Duration：动画的时间
repeatCount：重复次数@H_502_2@

2、通过animationWithKeyPath键值对的方式设置不同的动画效果
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@H_502_2@

let view = UILabel(frame: CGRectMake((self.view.frame.size.width - 200.0) / 2,200.0,40.0))
self.view.addSubview(view)
view.text = "缩放/淡入淡出"
view.textAlignment = .Center
view.adjustsFontSizeToFitWidth = true
view.backgroundColor = UIColor.lightGrayColor()
//
let layer = view.layer
// 开始动画
// 缩放
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")

// 组合动画
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 = "组合动画"
view3.textAlignment = .Center
view3.adjustsFontSizeToFitWidth = true
view3.backgroundColor = UIColor.lightGrayColor()
//
let layer3 = view3.layer
// CAAnimationGroup组合动画效果
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关键帧动画
主要属性:
keyPath : 要设置的属性
path : 路径可用UIBezierPath（设置了path，将忽略values）
duration : 动画时长
repeatCount : 重复次数
calculationMode : 动画计算方式
values：每一个关键帧（设置了path，将忽略values）
removedOnCompletion：执行完之后不删除动画
fillMode：执行完之后保存最新的状态
delegate：代理@H_502_2@

let view = UILabel(frame: CGRectMake((self.view.frame.size.width - 200.0) / 2,40.0))
self.view.addSubview(view)
view.text = "CAKeyframeAnimation动画"
view.backgroundColor = UIColor.lightGrayColor()
//
let layer = view.layer
// 位移
let keyAnimate = CAKeyframeAnimation(keyPath: "position")
// 设定关键帧
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)
// 速度曲线
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]
// 每段执行的时间
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("开始")
}

override func animationDidStop(anim: CAAnimation,finished flag: Bool) {
        print("结束")
}

let view3 = UILabel(frame: CGRectMake(10.0,60.0,60.0))
self.view.addSubview(view3)
view3.text = "抖动"
view3.backgroundColor = UIColor.lightGrayColor()
//
let layer3 = view3.layer
// 抖动
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)

原文链接：https://www.f2er.com/swift/321435.html

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