iPhone: Push Navigation Controller (w/ TableViewController) onto stack. Is this possible?

I have a view which contains a UIButton. When this is clicked, it calls a method that loads another NIB. Now, normally, that开发者_如何学Python nib would load a view onto the stack, and everything would be fine. But, I am trying to load a Navigation Controller (so that I can have table views that are multiple levels deep), and all I get it errors.

What is the proper method for loading a Navigation Controller and putting it on the top of the stack?

As the other poster said you should create your Nav controller in your AppDelegate. If you are adding a new UIView to the stack like presentModalViewController you want to create the UIView then add the Nav Controller to it. If you don't want nav controller on that screen but the next just use the navController.hidden property I think it is.

To add the nav controller to the view do this:

NoticesView *noticesScreen = [[[NoticesView alloc] init] autorelease];
noticesScreen.delegate = self;
UINavigationController *navController = [[[UINavigationController alloc] initWithRootViewController:notices_screen] autorelease];
[self presentModalViewController:navController animated:YES];

Hope that helps towards your question. Still trying to find out exactly what your doing

Create the navigation controller in the app delegate. Push your mapview onto the stack as the first view. Push your tableview onto the stack as the second. If you started with a view-based app template, you won't have a navigationcontroller instantiated at all. (Been there done that) the easiest way out of this is to use xCode to make a navigation based applcation and then copy the code out of that. If you do already have a navigation controller, then just push the view controllers as above.