如何使用 Swift 3 为按钮制作摇动动画

How do you make a shake animation for a button using Swift 3(如何使用 Swift 3 为按钮制作摇动动画)

问题描述

我有一个每 3 秒调用一次的函数.如何为左右晃动的按钮制作晃动动画.

I have a function that gets called every 3 seconds. How can I make a shaking animation for the button that shakes side to side.

func shakeButton() {
    if opened == false {
        //Shake Animation
    }
}

推荐答案

如果我理解正确，请在摇动动画上试试这个.只需在您的 UIButton 子类中使用此方法

if I understood you correctly, try this on shake animation. Simply use this method in your UIButton subclass

class CustomButton: UIButton {

    func shake() {
        let animation = CAKeyframeAnimation(keyPath: "transform.translation.x")
        animation.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionLinear)
        animation.duration = 0.6
        animation.values = [-20.0, 20.0, -20.0, 20.0, -10.0, 10.0, -5.0, 5.0, 0.0 ]
        layer.add(animation, forKey: "shake")
    }
}

然后您在代码或故事板/xib 中的某处创建 CustomButton 并调用 myButton.shake()

Then you create CustomButton somewhere in code or storyboard/xib and call myButton.shake()

您可以根据需要简单地采用此解决方案

You can simply adopt this solution on your needs

UPD:我有编辑示例而不是完全符合您的需求

UPD: I have edit example than exactly fitted your needs

UPD2:另一种解决方案只需创建 UIButton 扩展

UPD2: another one solution Just create UIButton extension

extension UIButton {

    func shake() {
        let animation = CAKeyframeAnimation(keyPath: "transform.translation.x")
        animation.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionLinear)
        animation.duration = 0.6
        animation.values = [-20.0, 20.0, -20.0, 20.0, -10.0, 10.0, -5.0, 5.0, 0.0 ]
        layer.add(animation, forKey: "shake")
    }

}

ans 使用你的按钮操作回调:

ans use on you button action callback:

@IBAction func shake(_ sender: UIButton) {
    sender.shake()
}

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