Swift3.0为视图添加旋转动画

Swift2.3:

//创建旋转动画

let anim = CABasicAnimation(keyPath: "transform.rotation")

//旋转角度

anim.toValue = 1 * M_PI

//旋转指定角度需要的时间

anim.duration = 1

//旋转重复次数

anim.repeatCount = MAXFLOAT

//动画执行完后不移除

anim.removedOnCompletion = true

//将动画添加到视图的laye上

view.layer.addAnimation(anim, forKey: nil)

//取消动画

view.layer.removeAllAnimations()

//这个是旋转方向的动画

UIView.animateWithDuration(0.2) { () -> Void in

    //指定旋转角度是180°

    view.transform = CGAffineTransformRotate(view.transform, CGFloat(M_PI))

}

Swift3.0:

let anim = CABasicAnimation(keyPath: "transform.rotation")

anim.toValue = 1 * M_PI

anim.duration = 1

anim.repeatCount = MAXFLOAT

anim.isRemovedOnCompletion = true

view1.layer.add(anim, forKey: nil)

view1.layer.removeAllAnimations()

UIView.animate(withDuration: 0.2) {

    view1.transform = view1.transform.rotated(by: CGFloat(M_PI))

}

巴特西

Swift3.0为视图添加旋转动画_CABasicAnimation

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