Creating TabBar programmatically only for one ViewController not in AppDelegate - iphone

Question

I want to create a tabBar in my app but only in a detailView not in the AppDelegate. I am searching how to do this in google but everything what I have figured out is in AppDelegate.m
I am trying to do something like this. This shows me a Tab bar with two buttons(without names) but I want to go from one FirstViewController with tabBar, to one of the two items SecondViewController or ThirdViewController with a navigationBar with one backItemButton for get back to the FirstViewController
- (void)viewDidLoad
{
[super viewDidLoad];
[self setupTabBar];
}
- (void) setupTabBar {
tabBars = [[UITabBarController alloc] init];
NSMutableArray *localViewControllersArray = [[NSMutableArray alloc] initWithCapacity:4];
YPProfileViewController *profile = [[YPProfileViewController alloc] init];
YPProfileViewController *profile2 = [[YPProfileViewController alloc] init];
[localViewControllersArray addObject:profile];
[localViewControllersArray addObject:profile2];
tabBars.tabBarItem = profile2;
tabBars.viewControllers = localViewControllersArray;
tabBars.view.autoresizingMask==(UIViewAutoresizingFlexibleHeight);
[self.view addSubview:tabBars.view];
}

Answer 1

at least this works for me.
UIViewController *vc1 = [[UIViewController alloc] init];
vc1.title = #"FIRST";
vc1.view.backgroundColor = [UIColor blueColor];
UIViewController *vc2 = [[UIViewController alloc] init];
vc2.title = #"SECOND";
vc2.view.backgroundColor = [UIColor redColor];
UITabBarController *tabBar = [[UITabBarController alloc] init];
tabBar.viewControllers = #[vc1,vc2];
tabBar.selectedIndex = 1;
tabBar.view.frame = CGRectMake(50, 50, 220, 320);
[tabBar willMoveToParentViewController:self];
[self.view addSubview:tabBar.view];
[self addChildViewController:tabBar];
[tabBar didMoveToParentViewController:self];