如何禁用标准 UIButton 触摸事件

Posted 2023-03-21

【中文标题】如何禁用标准 UIButton 触摸事件

【英文标题】：How to disable standard UIButton touch event

【发布时间】：2017-07-25 23:22:14

【问题描述】：

在我的应用程序中，我添加了一个 UIButton，但不是让 UIButton 的标准触摸事件变暗然后在触摸事件结束时变为标准颜色，而是添加一个动画，当您单击 UIButton 按钮时变小，然后当触摸事件结束时，UIButton 在触摸事件结束时恢复到常规大小。到目前为止，我已经输入了这段代码，但它似乎不起作用。请告诉我如何完成这个动画。

// whatsTheGame is the UIButton I have

@IBAction func whatsTheGame(_ sender: UIButton) 

    logo.isHighlighted = false

    UIView.animate(withDuration: 0.3) 

        if let centerLogo = self.logo 

            centerLogo.transform = CGAffineTransform(scaleX: 0.7, y: 0.7)
        
    


override func touchesCancelled(_ touches: Set<UITouch>, with event: UIEvent?) 
    super.touchesCancelled(touches, with: event)

    UIView.animate(withDuration: 0.3) 

        if let centerLogo = self.logo 

            centerLogo.transform = CGAffineTransform(scaleX: 1, y: 1)
        
    


override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) 
    super.touchesEnded(touches, with: event)

    UIView.animate(withDuration: 0.3) 

        if let centerLogo = self.logo 

            centerLogo.transform = CGAffineTransform(scaleX: 1, y: 1)
        
    

【参考方案1】：

添加 Touch Up Inside 和 Touch Down 事件

@IBAction func onTouchUpInside(_ sender: Any) 

    let button = sender as! UIButton

    UIView.animate(withDuration: 0.3) 

        button.transform = CGAffineTransform(scaleX: 1, y: 1)
    


@IBAction func onTouchDown(_ sender: Any) 

    let button = sender as! UIButton

    UIView.animate(withDuration: 0.3) 

        button.transform = CGAffineTransform(scaleX: 0.7, y: 0.7)
    

【讨论】：

您可能还需要考虑添加touchDragOut(_:)、touchDragIn(_:) 以获得更标准的行为:-)