Question

I am training myself with an application that has a navigation controller, and the user can switch between two view controllers.
The root view controller class is called ViewController, and that’s how I programmatically add the navigation controller in my app delegate:

self.viewController = [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil];
navController= [[UINavigationController alloc]initWithRootViewController: viewController];
self.window.rootViewController= navController;

This is navController:

@property (strong, nonatomic) UINavigationController* navController;

The second view controller is called SecondViewController.I push it whenever the user clicks on the bar button item:

self.navigationItem.rightBarButtonItem=[[UIBarButtonItem alloc]initWithTitle: @"Second View" style: UIBarButtonItemStylePlain target: self action: @selector(switchView:)];

This is the selector executed:

- (void) switchView : (id) sender
{
    if(!nextController)
    {
        nextController= [[SecondViewController alloc]initWithNibName: @"SecondViewController" bundle: nil];
    }
    [self.navigationController pushViewController: nextController animated: YES];
}

Then in the second view controller appears automatically a button with the title “back”, that switches to the first view.That’s fine to me, but I would like to set the title and the style.So I’m trying to change the title:

self.navigationItem.backBarButtonItem.title= @"First View";

But nothing to do, the title is still “back”, how do I change it?

Also, ain’t I following a wrong or unefficient approach, right?

Answer 1

If you set the title property of your ViewController class in viewDidLoad, that string will appear as the text of your back button when you push a SecondViewController onto the stack.