If UIAlertController has no UIAlertActions, there is no way to dismiss it.

[brandtdaniels]

How would you propose to dismiss the controller if there are no actions?

[agilityvision]

Keep a reference to it and call dimissViewController?

[brandtdaniels]

Consider adding the following to the category:

- (void)dismiss {
    [self dismiss:YES];
}

- (void)dismiss:(BOOL)animated {
    [self.alertWindow.rootViewController dismissViewControllerAnimated:animated completion:nil];
}