gistfile1.m

// Calls the loadGames method in CheckInViewController
        UITabBarController *tabBarController = (UITabBarController *)self.presentingViewController;
        
        UINavigationController *navController = [tabBarController.viewControllers objectAtIndex:0];
        
        CheckInViewController *checkInViewController = [navController.viewControllers objectAtIndex:0];
        SettingsTableViewController *settingsTableViewController = [navController.viewControllers objectAtIndex:0];
        
        [checkInViewController loadGames];
        [settingsTableViewController loadSettings];