iPhone: Show modal UITableViewController with Navigation bar

Question

I am showing a modal view which is a UITableViewController class. For some reason it won't show the navigation bar when I show it. Here is my code:

SettingsCreateAccount *detailViewController = [[SettingsCreateAccount alloc] initWithStyle:UITableViewStyleGrouped];
    detailViewController.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
    detailViewController.navigationController.navigationBarHidden = NO;
    [self.navigationController presentModalViewController:detailViewController animated:YES];
    detailViewController = nil;
    [detailViewController release];

I thought it was shown by default? If it helps, I am calling this from another class that is also a UITableViewController managed by a UINavigationController. Ideas?

Answer 1

When you present a modal view controller it does not use any existing navigation controllers or navigation bars. If all you want is to display a navigation bar, you need to add the navigation bar as a subview of your modal view and present it as you're doing.

If you want to present a modal view controller with navigation functionality, you need to present a modal navigation controller containing your detail view controller instead, like so:

SettingsCreateAccount *detailViewController = [[SettingsCreateAccount alloc] initWithStyle:UITableViewStyleGrouped];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:detailViewController];
[detailViewController release];

navController.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
[self presentModalViewController:navController animated:YES];
[navController release];

Your modal controller will manage its own navigation stack.