Question

我在单独的文件中有2个类：让我们称之为NotificationManagement和NotificationReceiver

在我的NotificationReceiver类中，我有以下代码：

 class NotificationReceiver: UIViewController{
 //...   

 func showNotificationHandler(alert: UIAlertAction!) {

        var storyboard : UIStoryboard = UIStoryboard(name: Constants.storyboardName, bundle: nil)
        var vc : Article = storyboard.instantiateViewControllerWithIdentifier(Constants.articleVCTitle) as! Article
        self.presentViewController(vc, animated: false, completion: nil)


    }
    func dismissNotificationHandler(alert: UIAlertAction!) {
        Constants.articleAddress = ""
    }

    func showAlert(title:String, message:String) {

        let alert = UIAlertController(title: title,
            message: message, preferredStyle: .Alert)
        let okAction = UIAlertAction(title: Messages.showMsg, style: .Default , handler: showNotificationHandler)
        let dismissAction = UIAlertAction(title: Messages.discardMsg, style: .Cancel, handler: dismissNotificationHandler)
        alert.addAction(dismissAction)
        alert.addAction(okAction)
        self.presentViewController(alert, animated: false, completion: nil)
        }
  //...
}

现在我想在NotificationManagement类中处理此通知，而不是NotificationReceiver类。但是如果我把它放在那里我需要处理程序中的类似的东西，以传递有关当前视图控制器的信息：

func showNotificationHandler(alert: UIAlertAction!, currentViewController: UIViewController) {

        var storyboard : UIStoryboard = UIStoryboard(name: Constants.storyboardName, bundle: nil)
        var vc : Article = storyboard.instantiateViewControllerWithIdentifier(Constants.articleVCTitle) as! Article
        currentViewController.presentViewController(vc, animated: false, completion: nil)  
    }

但是后来我无法编译，错误真的是误导，就像编译器找不到样式.Default（因为我在showNotificationHandler中添加了参数）。我想在NotificationReceiver中使用这个函数：

let notificationManagement = NotificationManagement()
notificationManagement.showAlert("title",message: "message")

向UIAlertAction添加参数

0 个答案: