Multiple UITabBar in an application

[siasl]

Is it possible to have multiple TabBars in an application (of course only one visible at a time).

I have the following requirement. The top level for my application may be broken into categories A, B, C and D. I plan to implement the same using a UITabBarController with A, B, C and D as UITabBarItems.

The category A may have further sub categories of E, F, G, H.

When the user clicks on A, I would like to replace the existing TabBar with a new TabBar (a new TabBarController with TabBarItems for E, F, G, H) and a link back to the original view (displaying old TabBar and A, B, C and D as items).

Is it possible to attempt such a thing in iPhone SDK?

How should one design multiple level categorization of data in iPhone?

[Bertrand21]

I believe you can have the first set of abcd be buttons and then they can load different XiB files where you can set up the different tab bars

[siasl]

When I click on A button, by default it will load itself into the main view area only and the root tab bar will still be visible.

How can I replace the root tab bar with the tab bar for A?

[Bertrand21]

no what im saying is have a regular XIB file and have four UIButtons and if they click one of those buttons then it will load one of the four other XIB files that are each Diffent Tab Bar Controllers

[SkylarEC]

I assume you're working off of the UITabBar starter project in xcode.

If this is the case, then your solution is simple. Very simple.

1. Start off by creating the controllers that you want.
2. In this method:
   

   - (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController

   set up a switch, or series of if statements to figure out which tab bar controller was selected using the tabBarController object.
3. In the code for tabControllerA, and in that same method in which you set up your tabbarcontroller check, add in a line like this

4. [window addSubview:someOtherTabBarController.view];

5. To remove a sub tab bar controller, just have that same function call
   [someTabBarController.view removeFromSuperView];

[siasl]

Thanks for the suggestion. I will try out the same.

[untitled]

sorry.