如何从两个复选标记中选择一个？

Question

import UIKit

class UpdateUsersManagmentViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
    }

    @IBAction func checkBoxTapped(_ sender:UIButton) {
        UIView.animate(withDuration: 0.5, delay: 0.1, options: .curveLinear, animations: {
            sender.transform = CGAffineTransform(scaleX: 0.1, y: 0.1)
        }) { (success) in
            sender.isSelected = !sender.isSelected

            UIView.animate(withDuration: 0.5, delay: 0.1, options: .curveLinear, animations: {
                sender.transform = .identity
            }, completion: nil)
        }

}
}

Answer 1

我将有一个方法可以做到这一点。

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <solid android:color="#76d273" />
        </shape>
    </item>
    <item android:bottom="2dp">
        <shape android:shape="rectangle">
            <solid android:color="#76d63f" />

        </shape>
    </item>
    <item
        android:bottom="2dp"
        android:top="2dp">
        <shape android:shape="rectangle">
            <solid android:color="#d63f60" />

        </shape>
    </item>
    <item
        android:bottom="2dp"
        android:left="2dp"
        android:right="2dp"
        android:top="2dp">
        <shape android:shape="rectangle">
            <solid android:color="@android:color/white" />
        </shape>
    </item>
</layer-list>

另一个选择是这样的：

android:background="@drawable/test_drawable"

Answer 2

如果要从组中选择一个选项，最好使用单选按钮而不是复选框。

如果没有，我们应该手动进行。我迅速完成了工作

@objc func selector(_ sender: NSButton)
{
    if sender == checkBox1
    {
        if sender.state == .on && checkBox2.state == .on
        {
            checkBox2.state = .off
        }
    }
    if sender == checkBox2
    {
        if sender.state == .on && checkBox1.state == .on
        {
            checkBox1.state = .off
        }
    }
}