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

Updated for iOS 7:

[[UINavigationBar appearance] setTitleTextAttributes: [NSDictionary dictionaryWithObjectsAndKeys:
                                                      [UIColor colorWithRed:245.0/255.0 green:245.0/255.0 blue:245.0/255.0 alpha:1.0], NSForegroundColorAttributeName,
                                                      shadow, NSShadowAttributeName,
                                                      [UIFont fontWithName:@"HelveticaNeue-CondensedBlack" size:21.0], NSFontAttributeName, nil]];

courtesy of:

http://www.appcoda.com/customize-navigation-status-bar-ios-7/