iOS 7 UIBarButton back button arrow color

Question

I\'m trying to change the back button arrow

I\'m currently using the

Answer 1

I had to use both:

[[UIBarButtonItem appearanceWhenContainedIn:[UINavigationBar class], nil] 
                     setTitleTextAttributes:[NSDictionary 
               dictionaryWithObjectsAndKeys:[UIColor whiteColor], UITextAttributeTextColor,nil] 
                                   forState:UIControlStateNormal];

[[self.navigationController.navigationBar.subviews lastObject] setTintColor:[UIColor whiteColor]];

And works for me, thank you for everyone!