UIAlertView show() behavior for UIAlertController

Question

In previous versions of iOS I was able to call show on a UIAlertView in the App Delegate. More specifically, show was called in:

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Answer 1

Try This

    UIAlertController * alert=   [UIAlertController
                                  alertControllerWithTitle:@"title"
                                  message:@" Your message hear"
                                  preferredStyle:UIAlertControllerStyleAlert];

    UIAlertAction *okBtnAction = [UIAlertAction actionWithTitle:@"Ok" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action){
        //Do what action u want.
        [alert dismissViewControllerAnimated:YES completion:nil];
    }];
    [alert addAction:okAction];

     UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"cancel" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action){
            [alert dismissViewControllerAnimated:YES completion:nil];
            //do something when click button
        }];
        [alert addAction:Action];

    UIViewController *vc = [[[[UIApplication sharedApplication] delegate] window] rootViewController];
    [vc presentViewController:alert animated:YES completion:nil];