how can i change the navigation bar of MFMailComposeViewController?

i want开发者_JAVA百科 to change the navigation bar of MFMailComposeViewController to black color.

how can i change.

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Note that MFMailComposeViewController inherits from UINavigationController so it also has navigationBar property.

MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
picker.navigationBar.barStyle = UIBarStyleBlack;

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I know this post is quite dated but for someone who might find it useful, try:

MFMailComposeViewController *mailController  = [MFMailComposeViewController new];

[mailController.navigationBar setTintColor:[UIColor colorWithHue:240.0f/359.0f
                                                      saturation:85.0f/100.0f 
                                                      brightness:60.0f/100.0f 
                                                           alpha:0.0f]];