How to add UINavigationBar in an UIViewController?

Question

I have an UIViewController class(Say it is XXX). I present this view controller as modally by the code..

XXX *xxx = [ [XXX alloc] init];
[self presentModalViewController:xxx animated:YES];
[xxx release];

I want to add a navigation bar on the top of the XXX view. So I used UINavigationBar object in XXX's loadView method.

UINavigationBar *navBar = [ [UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
[self.view addSubview:navBar];
[navBar release];

But, It throws an error as "EXC_BAD_ACCESS". Any help...?

Thanks

Answer 1

OPTION-1:

Try adding navigation bar from the XIB of viewController called XXX.

OPTION-2:

Add a UINavigationController and present it modally.

Replace your code :

XXX *xxx = [[XXX alloc] init];
[self presentModalViewController:xxx animated:YES];
[xxx release];

with this code:

XXX *xxx = [[XXX alloc] init];
UINavigationController *navigation = [[UINavigationController alloc] initWithRootViewController:xxx];
[self presentModalViewController:navigation animated:YES];
[navigation release];

Hope this helps you.