NavigatorController按钮不显示弹出警报

Question

我正在创建一个简单的Navigationcontroller按钮以显示单击警报，但操作失败，请找到以下代码：

//Enable the buttons to edit
    self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Edit", style: .plain, target: self, action: #selector(EditEnable(sender:)))


@objc private func EditEnable(sender: UIBarButtonItem)
{
    let alert = UIAlertController(title: "Time to change the Menu for Next Week",
                                  message: "Message",
                                  preferredStyle: UIAlertController.Style.alert)

    alert.addAction(UIAlertAction(title: "Ok", style: UIAlertAction.Style.default))
}

不确定我在做什么是错误的。请帮忙。

Answer 1

您忘记显示警报了。

self.present(alert, animated: true, completion: nil)