在用户完成输入并按return键后，如何在带有textField的UIAlertController中触发UIAlertAction？[IOS swift]

我有一个警报，它有一个文本字段和两个操作：保存和取消。用户在文本字段中输入内容后，我希望在用户按键盘上的return键时触发save操作。如何在swift 5中执行此操作

我的代码附在下面

@IBAction func addNewCellButton(_ sender: Any) {
        let alert = UIAlertController(title: "Title", message: "msg", preferredStyle: .alert)
        alert.addTextField { (textField) in
            textField.placeholder = "enter something"
            textField.textColor = .black
            textField.backgroundColor = .white
        }
        let save = UIAlertAction(title: "Save", style: .default) { (alertAction) in
             print("Save pressed, text entered is ", textField.text!)
        }
        alert.addAction(save)
        let cancel = UIAlertAction(title: "Cancel", style: .default) { (alertAction) in
        }
        alert.addAction(cancel)
        self.present(alert, animated: true, completion: nil)
    }

---

将委托添加到

UITextField

textField.delegate = self

并在键盘上按

返回

键时使用以下委托方法

func textFieldShouldReturn(textField: UITextField) -> Bool {
    // Do your stuff here to get the text or whatever you need.
    // In your case Dismiss the Alert View Controller
    print("Save pressed, text entered is ", textField.text!)
    self.dismissViewControllerAnimated(true, completion: nil)
    return true
}