UIAlertController * alertView = [UIAlertController
                                     alertControllerWithTitle:@"My Title"
                                     message:@"My Message"
                                     preferredStyle:UIAlertControllerStyleAlert];
    UIAlertAction* yesButton = [UIAlertAction actionWithTitle:@"My Button Title" style:UIAlertActionStyleDefault handler:^(UIAlertAction * action) { }];
    [alertView addAction:yesButton];
    [self presentViewController:alertView animated:YES completion:nil];