MFMailComposeViewController appearance setTintColor getting lost iOS 7 - ios

Question

This question is for Xcode 5 running iOS 7 and is super weird. I am trying to set all the UInavigation and UIBarButtonItem text colors to white.
So in my app launch delegate I set the code as.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UIImage *NavigationPortraitBackground = [UIImage imageNamed:#"button_header_blue"];
// Set the background image all UINavigationBars
[[UINavigationBar appearance] setBackgroundImage:NavigationPortraitBackground forBarMetrics:UIBarMetricsDefault];
// Set the text appearance for navbar
[[UINavigationBar appearance] setTitleTextAttributes:
[NSDictionary dictionaryWithObjectsAndKeys:
[UIColor whiteColor], UITextAttributeTextColor,
[UIColor whiteColor], UITextAttributeTextShadowColor,
[NSValue valueWithUIOffset:UIOffsetMake(0, 0)], UITextAttributeTextShadowOffset,
[UIFont fontWithName:#"Helvetica Neue" size:21], UITextAttributeFont,
nil]];
[[UINavigationBar appearance] setTintColor:[UIColor whiteColor]];
NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:
[UIColor whiteColor],
UITextAttributeTextColor,
[UIColor whiteColor],
UITextAttributeTextShadowColor,
nil];
[[UIBarButtonItem appearance] setTitleTextAttributes:attributes forState: UIControlStateNormal];
[[UIBarButtonItem appearance] setTintColor:[UIColor whiteColor]];
// Override point for customization after application launch.
return YES;
}
If I launch "send mail" action twice
- first time I see UIBarButton items white. I look at it and hit the Cancel button
- second time I see them all of them grayed out and barely visible except for the title.
- This is happening in both my iPhone simulator and iPhone running iOS 7.
how can I fix this?

Answer 1

I had to do it this way in order for it to work on iOS 7
if ([MFMailComposeViewController canSendMail])
{
MFMailComposeViewController *mailViewController = [[MFMailComposeViewController alloc] init];
mailViewController.mailComposeDelegate = self;
[mailViewController.navigationBar setTintColor:[UIColor whiteColor]];
[mailViewController.navigationBar setBarTintColor:[UIColor whiteColor]];
....