iOS - Create tab controller with view controllers

createTabController

// Create a tabbar controller and an array to contain the view controllers
UITabBarController *tabBarController = [[UITabBarController alloc] init];
tabBarController.delegate = self;

NSMutableArray *localViewControllersArray   = [[NSMutableArray alloc] init];

//	Setup first view and nav controllers
UIViewController *vc1 = [[UIViewController alloc] init];
UINavigationController *nc1 = [[UINavigationController alloc] initWithRootViewController:vc1];
[localViewControllersArray addObject:nc1];

//	Setup second view and nav controllers
UIViewController *vc2 = [[UIViewController alloc] init];
UINavigationController *nc2 = [[UINavigationController alloc] initWithRootViewController:vc2];
[localViewControllersArray addObject:nc2];

// set the tab bar controller view controller array to the localViewControllersArray
tabBarController.viewControllers = localViewControllersArray;

[self.window setRootViewController:self.tabBarController];