MFMailComposeViewController bar background color not changing in iOS7

Question

I\'m trying to change the background color of the MFMailComposeViewController in iOS7 but I cannot make it work.

I\'m

Answer 1

First present the MFMailComposeViewController then change its tintColor

[self presentViewController:emailDialog animated:TRUE completion:nil];

[[UINavigationBar appearance] setBackgroundImage:nil 
                                  forBarPosition:UIBarPositionTopAttached 
                                      barMetrics:UIBarMetricsDefault];