Question

我正在尝试显示3个单选按钮。如果选择了按钮1，则应禁用其余2个按钮。如果选择了按钮2，则应该禁用按钮1和3。最后，如果选择了按钮3，则应该禁用1和2。我尝试了多种方式，但没有成功。这是我的代码，不胜感激。

@IBAction func button1Clicked(_ sender: UIButton) {
    if button2.isSelected {
        button2.isSelected = false
        button1.isSelected = true
    } else {
        button1.isSelected = true
    }
}

@IBAction func button2Clicked(_ sender: UIButton) {
    if button1.isSelected {
        button1.isSelected = false
        button2.isSelected = true
    } else {
        button2.isSelected = true
    }
}


@IBAction func button3Clicked(_ sender: UIButton) {
    if button3.isSelected {
        button3.isSelected = false
        button2.isSelected = true
        //button1.isSelected = true
    } else {
        button1.isSelected = true
    }
}

Answer 1

您可以通过更改按钮的UIImage来尝试这种方式：

@IBAction func mr(_ sender: Any) {
    mrOutlet.setImage(UIImage(named: "check"), for: .normal)
    msOutlet.setImage(UIImage(named: "uncheck"), for: .normal)
    mrsOutlet.setImage(UIImage(named: "uncheck"), for: .normal)
    salutation = "Mr."
}

@IBAction func ms(_ sender: Any) {
     msOutlet.setImage(UIImage(named: "check"), for: .normal)
    mrOutlet.setImage(UIImage(named: "uncheck"), for: .normal)
    mrsOutlet.setImage(UIImage(named: "uncheck"), for: .normal)
    salutation = "Ms."
}

@IBAction func mrs(_ sender: Any) {
     mrsOutlet.setImage(UIImage(named: "check"), for: .normal)
    mrOutlet.setImage(UIImage(named: "uncheck"), for: .normal)
    msOutlet.setImage(UIImage(named: "uncheck"), for: .normal)
    salutation = "Mrs."
}

希望获得帮助：）

单选按钮逻辑为3个按钮迅速

1 个答案: