What happens if you present it over your normal view controller hierarchy
instead of using another window?
Has your application adopted UIWindowScene?
> On Sep 30, 2019, at 5:36 PM, Doug Hardie via Cocoa-dev
> <cocoa-dev@lists.apple.com> wrote:
>
> I have some code that presents an alert to the user with information they
> need, and an OK button to clear it. It works fine in the previous Xcode
> versions. However, after upgrading to 11, it now displays the alert and then
> immediately clears it. This happens both in the simulator and on a real
> device. I have played around with the code and can't figure out how to make
> it leave the alert on the screen. This is in Swift. It is a function that
> is called from numerous places in the app.
>
> func NotificationAlert (_ msg1: String, _ msg2: String) {
> let ErrorAlert = UIAlertController(title: msg1, message: msg2,
> preferredStyle: .alert)
> let dismiss = UIAlertAction(title: "Ok", style: .default, handler: nil)
> ErrorAlert.addAction(dismiss)
> ErrorAlert.presentInOwnWindow(animated: true, completion: nil)
> }
>
> extension UIAlertController {
> func presentInOwnWindow(animated: Bool, completion: (() -> Void)?) {
> let alertWindow = UIWindow(frame: UIScreen.main.bounds)
> alertWindow.rootViewController = UIViewController()
> alertWindow.windowLevel = UIWindow.Level.alert + 1;
> alertWindow.makeKeyAndVisible()
> alertWindow.rootViewController?.present(self, animated: animated,
> completion: completion)
> }
> }
>
>
> -- Doug
>
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