IOS swift中的动画的实例详解
UIView的通用动画
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
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
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 = "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)
