Question

如何在swift中实现删除通知？所以如果我有一个删除按钮，你确定＆＃34;＆＃34;通知框弹出删除和取消选项，我以为它会在info.plist中，但没有看到任何东西，任何人都可以帮忙吗？

Answer 1

简单只需使用IBAction将您的按钮链接到您的代码，然后在函数中编写警报代码。

所以你的代码应该是这样的：

class ViewController: UIViewController {

    @IBAction func showAlertButtonTapped(_ sender: UIButton) {

        // create the alert
        let alert = UIAlertController(title: "UIAlertController", message: "Would you like to continue learning how to use iOS alerts?", preferredStyle: UIAlertControllerStyle.alert)

        // add the actions (buttons)
        alert.addAction(UIAlertAction(title: "Continue", style: 

UIAlertActionStyle.default, handler: nil))
            alert.addAction(UIAlertAction(title: "Cancel", style: UIAlertActionStyle.cancel, handler: nil))

            // show the alert
            self.present(alert, animated: true, completion: nil)
        }

}

Answer 2

快速4

    @IBAction func DeleteButtonTapped(_ sender: UIButton) {

        let DeleteAlert = UIAlertController(title: "Alert", message: "Request will be deleted", preferredStyle: UIAlertControllerStyle.alert)
        DeleteAlert.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.default, handler: { (action: UIAlertAction!) in
            //Add your Action for deleting
        }))

        DeleteAlert.addAction(UIAlertAction(title: "Cancel",style: .cancel, handler: { (action: UIAlertAction!) in
            //if anything to do after cancel clicked
        }))
        present(DeleteAlert, animated: true, completion: nil)
    }

如何实现＆＃34;删除＆＃34;迅速通知

2 个答案: