Items in uitabbar doesn't show properly

[napoleone1981]

Hi to all,
I'm a newbie of Obj-C and Cocoa. After spending some days trying to build my first app using a TabBarController with IB I realize to make it programmatically (not all...).

Now I create the UITabBar at runtime (applicationDidFinishLaunching) and I made 4 xib for four view associated withe tabbar items.

Xib File's Owners are 4 different ViewController. Every Xib file contains a UITabBarItem associated with the tabBarItem outlet of the UIViewController (the file's owner)

The problem is that when the application loads, only the first item in the tabbar is visible, with the associated view, but the others not.
When I push where I suppose there's the other item, the tabbar item title is displayed with the associated view correctly.

How can I show all the tabbaritems when I load the application??

This is my application delegate code:

@synthesize window;
@synthesize tabBarController;


- (void)applicationDidFinishLaunching:(UIApplication *)application {    

    // Override point for customization after application launch
	tabBarController = [[UITabBarController alloc] init];
	NSMutableArray *controllers = [[NSMutableArray alloc] initWithCapacity:4];
	
	// Creo i 4 view controller
	FeaturedViewController *featured = [[FeaturedViewController alloc] initWithNibName:@"FeaturedView" bundle:nil];
	SecondViewController *second = [[SecondViewController	alloc] initWithNibName:@"SecondView" bundle:nil];
	HelpViewController *help = [[HelpViewController alloc] initWithNibName:@"HelpView" bundle:nil];
	SettingsViewController *settings = [[SettingsViewController alloc] initWithNibName:@"SettingsView" bundle:nil];
	
	// li aggiungo all'array locale di controller
	[controllers addObject:featured];
	[controllers addObject:second];
	[controllers addObject:help];
	[controllers addObject:settings];
	
	[featured release];
	[second release];
	[help release];
	[settings release];
	
	tabBarController.viewControllers = controllers;	
//	[[tabBarController viewControllers] addObjectsFromArray:controllers];
	[controllers release];
	
	// Aggiungo il tab controller alla window
	tabBarController.selectedIndex = 0;
	[window addSubview:[tabBarController view]];
    [window makeKeyAndVisible];
}

This is a screenshot when I first run the application (as you see, there's only one tabbaritem and not four...)

[funkytaco]

I think you need something like this:

tabController.viewControllers = [NSArray arrayWithObjects:featured,second,help,settings, nil];

instead of:

tabBarController.viewControllers = controllers;

I'm still learning, so let me know if this works out for you or not.

[meowmix23F]

Originally Posted by funkytaco

I think you need something like this:

tabController.viewControllers = [NSArray arrayWithObjects:featured,second,help,settings, nil];

instead of:

tabBarController.viewControllers = controllers;

I'm still learning, so let me know if this works out for you or not.

do it in IB, if you're having trouble. It'll save you a lot of time.

[napoleone1981]

Originally Posted by meowmix23F

do it in IB, if you're having trouble. It'll save you a lot of time.

Well, I'm trying programmatically because I found "some" problem with IB... ;-)


@funkytaco: I'll try later this evening when I'll be at home... but honestly, I don't see difference between my and your code...

[napoleone1981]

Originally Posted by funkytaco

I think you need something like this:

tabController.viewControllers = [NSArray arrayWithObjects:featured,second,help,settings, nil];

instead of:

tabBarController.viewControllers = controllers;

I'm still learning, so let me know if this works out for you or not.

I've just tried... No good news... the problem is still there!

Any other help??

[S.LakshmiKanth Reddy]

Originally Posted by napoleone1981

I've just tried... No good news... the problem is still there!

Any other help??

before adding the controller to the tabbar, assign title for each and every controller, ie., Featured, second,help,settings.

then add the controllers to the tab bar, it will work.

[hiptomorrow]

I had the same problem but after a wee bit of thought realised you have to use setTabBarItem in each of the view controllers when they're initialized...

//override the initialize method
-(id)init
{
	if(self = [super init]){
		
		//setup the tab bar item
		[self setTabBarItem:[[UITabBarItem alloc] initWithTitle:@"YOUR TITLE" image:[UIImage imageNamed:@"yourimage.png"] tag:0]];			
	}
	
	return self;
}

Hope this helps :-)

I'm a novice at this, so if anyone can see any mistakes I've made, or a better way to do it, please correct me!