Question

I have build a UITabBarController programmatically and populated its viewControllers property.
When I run this the tabBar buttons are, of course, empty, I tried to access the tabBar property on the UITabBarController to set its items property to my text/images, which made the app crash.

Going through the documentation for the UITabBarController I read this under the tabBar property:

The tab bar view associated
with this controller. (read-only)

@property(nonatomic,readonly) UITabBar
*tabBar Discussion You should never attempt to manipulate the UITabBar
object itself stored in this property.
If you attempt to do so, the tab bar
view throws an exception. To configure
the items for your tab bar interface,
you should instead assign one or more
custom view controllers to the
viewControllers property. The tab bar
collects the needed tab bar items from
the view controllers you specify.

The tab bar view provided by this
property is only for situations where
you want to display an action sheet
using the showFromTabBar: method of
the UIActionSheet class.

This is what I want:

The tab bar collects the needed tab
bar items from the view controllers
you specify.

It also makes perfect sense that you do not setup up the tabBar in one place and the content in another.

But how do I define these items in my viewControllers which are all of type UINavigationController, with my custom ViewController as the rootController?

Is there some protocol besides the UITabBarControllerDelegate I need to implement?

Hope someone could point me in the right direction, I did not see this one coming:) Thanks

Answer 1

In general, the tab bar items gets filled with the name of the view controller you are loading into it.

In your case you can do one thing,

[tabbarContrller.tabBarItem initWithTitle:@"rafsfsa" image:[UIImage imageName:@"some.png" tag:0];

Do reply if you get this in.