UINavigation Controller and UITabbarController connumdrum

Question

I have searched and searched but as yet still cannot figure this ole problem out! :-(

I have in my main.xib a TabBarController that is setup with five viewControllers.

I am trying to get the first viewcontroller to be a nav controller so that if the first tab is selected I can push and pop views into view.

But for the life of me I cannot get this to work?

I tried this in my app delegate didLaunch method:

UITabBarController *tabBarController = [[UITabBarController alloc] init];
tabBarController.delegate=self;
FirstViewController *first = [[FirstViewController alloc] initWithNibName:@"FirstView" bundle:[NSBundle mainBundle]];
UINavigationController *firstNav = [[UINavigationController alloc] initWithRootViewController:first];  
NSArray* controllers = [NSArray arrayWithObjects:firstNav, nil];  
tabBarController.viewControllers = controllers;  
[window addSubview:tabBarController.view];

for which I see my view displayed but no buttons appear on the tab bar?

Any tip please?? thnx

Answer 1

For that, you have to add View Controllers in TabBar programatically. Like below:

oFirstViewController.title = @"First View";
oFirstViewController.tabBarItem.image = [UIImage imageNamed:@"ico.png"];
UINavigationController *myNavigationController1 = [[UINavigationController alloc] initWithRootViewController:oFirstViewController]; 
tabBarController.viewControllers = [NSArray arrayWithObjects:myNavigationController1, myNavigationController2, myNavigationController3, myNavigationController4, nil];

This way, you have to add remaining view-controller to your tabbar controller.

Hope it will he helpful to you.

Let me know in case of any difficulty.

Answer 2

Your tabBarController contains only one viewController. So there will be only one tabBarItem available in tabBarController. As there is only one viewController available, that tabBarItem will be selected by default and you can't change the selection. So you don't feel like there is a button. But its there. You can set the title and image for the viewController and you will see the difference.

first.title = @"firstTab";
first.navigationItem.image = [UIImage imageNamed:@"firstTab.png"];

Answer 3

Below is the link that explain how to setup tabbar controller and navigation controller
Link 1

Hope it helps you......

Answer 4

[first.tabBarItem initWithTitle:@"First" image:[UIImage imageNamed:@"first.png"] tag:0];