UIApperance和各种崩溃

我在自定义我的应用程序时感到非常沮丧。 我已经创建并设计了几乎整个应用程序的样式，包括导航栏、工具栏、tabBar 等，但每次 MFMailComposeViewController、MFMessageComposerViewController、Twitter 或 Facebook 共享器甚至 QuickLook 视图控制器发挥作用时，应用程序都会崩溃并显示以下消息：

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

我读到这是因为 iOS 6 将作曲家作为远程控制器进行管理，但我真的不知道如何解决这个问题。

我不想因此删除邮件撰写功能或消息撰写功能。

有人也遇到过这个bug吗？

代码我已经写好了。问题是 UIAppearance 由于自定义 UINavigationBars 元素而导致应用程序崩溃。 代码。

-(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];
    }
}

外貌

- (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"]];

}

经过各种调试会话后，我发现导致我崩溃的代码行是

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

所以我删除了它，一切正常。 显然，我无法直接在 AppDelegate 中设置外观，但我必须在开关所在的类中进行设置。

对于刷新控件外观也是如此：必须在 tableView 的类中设置它。