ios - iOS7 中的 MFMailComposeViewController 自定义

Question

我在 iOS7 中自定义 MFMailComposeViewController 时遇到问题。我试图隐藏和删除标题，因为我有一个自定义导航外观，我想将其完全带入邮件 View Controller 。我正在使用它，它在 iOS6 上运行良好，但在 iOS7 上首次打开时无法运行。当我打开 View 并取消邮件然后再次打开 Controller 时，它会继续工作。问题是第一次出现邮件 Controller 。这是我正在使用的代码:

if ([MFMailComposeViewController canSendMail]) {

    UIView* parentView = [self showProgress];

    MFMailComposeViewController* controller = [[MFMailComposeViewController alloc] init];
    controller.mailComposeDelegate = self;

    if ([[UINavigationBar class] respondsToSelector:@selector(appearance)])
        [[UINavigationBar appearance] setTitleTextAttributes: [NSDictionary dictionaryWithObjectsAndKeys:[UIColor lightGrayColor], UITextAttributeTextShadowColor, [NSValue valueWithUIOffset:UIOffsetMake(0, 0)], UITextAttributeTextShadowOffset, [UIFont fontWithName:@"CourierNewPS-BoldMT" size:1], UITextAttributeFont, [UIColor whiteColor],UITextAttributeTextColor, nil]];

    [controller setToRecipients:[NSArray arrayWithObject:[LNController shared].profile.email]];
    [controller setSubject:NSLocalizedString(@"APPSTORE_NAME", nil)];
    NSData* energyData = [[self createEnergyCSVFile] dataUsingEncoding:NSUTF8StringEncoding];
    NSData* timeData = [[self createTimeCSVFile] dataUsingEncoding:NSUTF8StringEncoding];
    [controller addAttachmentData:energyData mimeType:@"text/csv" fileName:NSLocalizedString(@"ENERGY", nil)];
    [controller addAttachmentData:timeData mimeType:@"text/csv" fileName:NSLocalizedString(@"TIME", nil)];

    [[[[controller viewControllers] lastObject] navigationItem] setTitle:@""];
    [self presentViewController:controller animated:YES completion:nil];

    [self hideProgress:parentView];

}  

有人经历过这个吗？任何帮助都会很棒。

Answer 1

您必须直接在 MFMailComposeViewController 上设置自定义代码。这是我的一个应用程序的示例:

if ([MFMailComposeViewController canSendMail]) {
    MFMailComposeViewController *mailViewController = [[MFMailComposeViewController alloc] init];
    mailViewController.mailComposeDelegate = self;
    // Fix UI -- Add your custom UI here
    [mailViewController.navigationBar setTintColor:[UIColor whiteColor]];
    [mailViewController.navigationBar setBarTintColor:[UIColor whiteColor]];
    // Set params
    [mailViewController setToRecipients:@[@"e-mail@email.com"]];
    [mailViewController setSubject:NSLocalizedString(@"Feedback", @"Feedback")];
    [self presentViewController:mailViewController animated:YES completion:^{
        [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
    }];
}

编辑:这是一个仅限 iOS 7 的应用程序，因此还要添加必要的检查，以免它在 iOS 6 上崩溃