Cannot set title

[fatuhoku]

I've got a storyboard set up, linked to a XIB:

I'm trying to override the title given in the storyboard programmatically from the view controller but not having much luck:

@implementation LSPopoverViewController

// ...

-(void)viewDidAppear:(BOOL)animated {
    NSAssert(self.navigationItem, @"Expected navigation item to have a value");

    NSLog(@"Presenting controller: %@", self.presentingViewController);
    NSLog(@"Navigation controller's item: %@", self.navigationController.navigationItem);
    NSLog(@"Navigation hidden?: %d", self.navigationController.navigationBarHidden);

    self.title = @"Popover View Controller";
    self.navigationItem.title = @"Popover View Controller";
    self.navigationController.navigationItem.title = @"Popover View Controller";
}

@end

WRONG TITLE still shows. How comes?

[fatuhoku]

I tried all the ways as outlined here: http://stackoverflow.com/questions/6154237/how-to-set-the-title-of-a-navigation-bar-programatically

[yoiang]

So the issue here is that the navigation item you need to address is only actually relative to the view immediately contained in the UINavigationViewController, ie the StoryboardXIBController. If you grab the StoryboardXIBController in your sub-ViewController you should be able to assign its navigation item properly in your sub-ViewController.

LSPopoverViewController.h

@interface LSPopoverViewController : UIViewController<StoryboardXibContainedController>
...

LSPopoverViewController.m

...
- (void)storyboardXibLoadedBy:(StoryboardXibController *)storyboardXibController
{
    storyboardXibController.navigationItem.title = @"Popover View Controller";
}
...

Or other than assign it directly in storyboardXibLoadedBy hold a weak reference to the StoryboardXibController instance and set the title when you know what the title should be.

Let me know if this works!

This seems like a pretty common thing that people will want to do, I'll think about a simpler way to get the navigation item of the StoryboardXIBController.

[fatuhoku]

Hmmm. It's definitely very useful. I think I could work with that — it's a pretty leaky abstraction though, since the View Controller will now need to know about the fact that it's been loaded by a StoryboardXibController.

UIViewController has a few contractual obligations that need to be met. What's stopping the navigation controller be set onto the navigationController and navigationItem properties? It's more complicated than that, isn't it? :P

[yoiang]

I agree completely, I'll try to think of a cleaner solution, again let me know if you come up with something!

Yea, UIViewControllers in general are very contradictory, in no small part by their exposure and access to the navigation view and items ;)

[yoiang]

Created issue #4