Change the navigation bar's font

Question

The question is plain easy and simple, the answer unfortunately not.

How can you change the font of the text in the UINavigationBar?

Answer 1

     NSShadow *shadow = [NSShadow new];
[shadow setShadowColor: [UIColor clearColor]];
[shadow setShadowOffset: CGSizeMake(0.0f, 1.0f)];

[self.navigationController.navigationBar setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
                                         [UIFont fontWithName:@"TimeBurner" size:27.0f], NSFontAttributeName,
                                         [UIColor whiteColor], NSForegroundColorAttributeName,
                                         shadow, NSShadowAttributeName,nil]];