选中时防止按钮图像突出显示 swift 4

Question

I do my swift project using code only no storyboards, so no storyboard solutions please I have an agree to terms button and when selected the checkmark is covered in the tint color I am trying to prevent the tint选择时突出显示图像的颜色我不确定为什么会发生这种情况是按钮代码

let agreeToTermsAndConditions : UIButton = {
    let button = UIButton(type: .system)
    button.tintColor = .gray
    button.backgroundColor = .white
    button.adjustsImageWhenHighlighted = false  
    button.setImage(UIImage(named:"unchecked" )!, for: .normal)
    button.setImage(UIImage(named:"agreechecked" )!, for: .selected)
    button.addTarget(self, action: #selector(userAgreedToTerms), for: .touchUpInside)
    
    return button
}()

代码是运行 xcode 10.2.1 使用 swift 4 和 iOS 12 部署

Answer 1

改变

UIButton(type: .system)

至

UIButton(type: .custom)

现在您可以完全控制按钮的外观和行为。

选中时防止按钮图像突出显示 swift 4

Preventing button image highlight when selected swift 4

swift

ios12

xcode10