Estou ficando tão frustrado ao personalizar meu aplicativo. Eu já criei e estilizei quase todo o aplicativo, incluindo barra de navegação, barra de ferramentas, tabBar etc, mas toda vez que um MFMailComposeViewController, um MFMessageComposerViewController, Twitter ou Facebook compartilham ou mesmo um QuickLook View Controller entra em jogo, o aplicativo trava com a mensagem:

*** Assertion failure in -[UICGColor encodeWithCoder:].
*** Terminating app due to uncaught exception 'NSInternalInconsistencyExceptionì, reason: 'Only RGBA or White color spaces are supported in this situation.'

Eu li em torno de que isso é porque o iOS 6 gerencia os compositores como controladores remotos, mas eu realmente não tenho idéia de como obter uma solução para este problema.

Não quero remover os recursos de composição de mensagens ou os recursos de composição de mensagens por causa disso.

Alguém encontrou esse bug também?

Eu já tenho o código escrito. O problema é que o UIAppearance está fazendo o aplicativo travar por causa dos elementos personalizados do UINavigationBars. Código.

-(void)message{
    if (_progressHUD){
        [_progressHUD hide:YES];
    }
    MFMessageComposeViewController *controller = [[MFMessageComposeViewController alloc] init] ;
    [controller setMessageComposeDelegate:self];

    if([MFMessageComposeViewController canSendText])
    {
        controller.body = descriptionString;
        controller.recipients = nil;
        [self presentViewController:controller animated:YES completion:nil];
    }

}

-(void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result{
    [self dismissViewControllerAnimated:YES completion:nil];
}

-(void)email {

    if (_progressHUD){
        [_progressHUD hide:YES];
    }

    MFMailComposeViewController *composer = [[MFMailComposeViewController alloc] init];
    [composer setMailComposeDelegate:self];
    if ([MFMailComposeViewController canSendMail]) {
        [composer setToRecipients:nil];
        [composer setSubject:[NSString stringWithFormat:@"%@",nameString]];

        [composer setMessageBody:[NSString stringWithFormat:@"%@",descriptionString] isHTML:NO];        [composer addAttachmentData:[NSData dataWithContentsOfURL:[NSURL URLWithString:imageString]] mimeType:@"png" fileName:imageString];
        [composer setModalTransitionStyle:UIModalTransitionStyleCoverVertical];
        [self presentViewController:composer animated:YES completion:nil];
    }
}


-(void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error {
    if (error) {
        SIAlertView *alert = [[SIAlertView alloc] initWithTitle:@"Error"
                                                        andMessage:[NSString stringWithFormat:@"Error %@", [error description]]];
        [alert addButtonWithTitle:@"OK" type:SIAlertViewButtonTypeDestructive handler:^(SIAlertView *alertView){}];
        [alert show];
        [self dismissViewControllerAnimated:YES completion:nil];
    }
    else {
        [self dismissViewControllerAnimated:YES completion:nil];
    }
}

Aparência

- (void)customizeAppearance
{
    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];

    UINavigationBar Appearance
    [[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:@"navigationBarBackground"] forBarMetrics:UIBarMetricsDefault];
    [[UINavigationBar appearance] setTintColor:[UIColor whiteColor]];
    [[UINavigationBar appearance] setTitleTextAttributes:
     [NSDictionary dictionaryWithObjectsAndKeys:
      [UIColor whiteColor],
      UITextAttributeTextColor,
      [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.0],
      UITextAttributeTextShadowColor,
      [NSValue valueWithUIOffset:UIOffsetMake(0, -1)],
      UITextAttributeTextShadowOffset,
      [UIFont fontWithName:@"HelveticaNeue" size:0.0],
      UITextAttributeFont,
      nil]];

    //ToolBar Appearance
    [[UIToolbar appearance] setTintColor:[UIColor whiteColor]];


    //Switch Appearance
    [[UISwitch appearance] setOnTintColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"greenBackground"]]];

    //Search Bar Appearance
    [[UISearchBar appearance] setTintColor:[UIColor whiteColor]];

    //Tab Bar Appearance
    [[UITabBar appearance] setBackgroundImage:[UIImage imageNamed:@"tabBarBackground"]];
    [[UITabBar appearance] setTintColor:[UIColor whiteColor]];
    [[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor whiteColor], UITextAttributeTextColor, nil] forState:UIControlStateNormal];
    [[UITabBar appearance] setSelectionIndicatorImage:[UIImage imageNamed:@"transparent"]];

}