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Swift-TVOS取消UIAlertController

[英]Swift-tvOS dismissing UIAlertController

I am doing app for tvOS and I have problem with canceling UIAlertController . 我正在为tvOS做应用,我在取消UIAlertController问题。 I am presenting a UIAlertController on top of a normal UIViewController . 我在普通的UIViewController上展示一个UIAlertController When I push Menu button on tv remote to dismiss the alert, the parent view controller is dismissed first and when i press menu button for the second time, UIAlertController disappeared correctly, but after the parent view controller, which i don't want to dismiss. 当我按下电视遥控器上的“菜单”按钮以消除警报时,父视图控制器首先被解除,而当我第二次按下菜单按钮时, UIAlertController正确消失,但是在父视图控制器之后,我不想关闭它。

func showTextDescription(message:String?) {
    let allertController=UIAlertController(title: title, message: message, preferredStyle: .ActionSheet)

    // Cancel action (is invisible, but enables escape)
    allertController.addAction(UIAlertAction(title: nil, style: .Cancel, handler: nil))

    self.presentViewController(allertController, animated: true, completion: nil)
    }

How can i dismiss only alertcontroller ? 我怎样才能只关闭alertcontroller Thanks. 谢谢。

Just call this line of code when you want to dismiss the alert controller. 要关闭警报控制器,只需调用此行代码即可。

allertController.dismissViewControllerAnimated(true, completion: nil)

Or you can add an alert action. 或者,您可以添加警报措施。

let alertAction: UIAlertAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.Default, handler: nil)
allertController.addAction(alertAction)

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