ios - 创建类似于邮件应用程序菜单的 iPhone 弹出菜单

Question

当您想回复邮件时，我想创建一个类似于邮件应用程序中的弹出菜单。我在不止一个应用程序中看到过这种情况，所以我不确定框架中是否内置了一些东西或那里有一些示例代码。

Answer 1

在 Swift 中创建操作表

代码已通过 Swift 5 测试

自 iOS 8 起，UIAlertController 与 UIAlertControllerStyle.ActionSheet 结合使用。 UIActionSheet 已弃用。

下面是生成上图中操作表的代码:

class ViewController: UIViewController {
    
    @IBOutlet weak var showActionSheetButton: UIButton!
    
    @IBAction func showActionSheetButtonTapped(sender: UIButton) {
        
        // Create the action sheet
        let myActionSheet = UIAlertController(title: "Color", message: "What color would you like?", preferredStyle: UIAlertController.Style.actionSheet)
        
        // blue action button
        let blueAction = UIAlertAction(title: "Blue", style: UIAlertAction.Style.default) { (action) in
            print("Blue action button tapped")
        }
        
        // red action button
        let redAction = UIAlertAction(title: "Red", style: UIAlertAction.Style.default) { (action) in
            print("Red action button tapped")
        }
        
        // yellow action button
        let yellowAction = UIAlertAction(title: "Yellow", style: UIAlertAction.Style.default) { (action) in
            print("Yellow action button tapped")
        }
        
        // cancel action button
        let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertAction.Style.cancel) { (action) in
            print("Cancel action button tapped")
        }
        
        // add action buttons to action sheet
        myActionSheet.addAction(blueAction)
        myActionSheet.addAction(redAction)
        myActionSheet.addAction(yellowAction)
        myActionSheet.addAction(cancelAction)
        
        // present the action sheet
        self.present(myActionSheet, animated: true, completion: nil)
    }
}

还需要帮助吗？观看此视频教程。我就是这样学的。

• UIActionSheet example in Swift (与名称相反，它实际上使用新的 UIAlertController 操作表而不是 UIActionSheet。)