自定义从UITextView打开的自动MFMailComposeViewController

Question

我有一个简单UITextView的电子邮件链接.textview是可选择的并检测链接.这样,您可以单击电子邮件,它以模态方式打开MFMailComposeViewController视图控制器.

但是,我在应用程序的启动时做了一些自定义:

[[UINavigationBar appearance] setBarTintColor: myGreyColor];
[[UINavigationBar appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName: [UIColor whiteColor], NSFontAttributeName: myFont}];
[[UINavigationBar appearance] setTintColor:[UIColor whiteColor]];

这样,所有导航栏都是灰色的,带有白色文本和白色按钮,标题具有自定义字体.

我的问题是所有这些都没有应用于邮件编辑器:栏是灰色的,标题是白色,但字体是默认的helvetica neue,按钮是默认的蓝色.而且,状态栏是黑色的,即使我的Info.plist说UIStatusBarStyleLightContent并View controller-based status bar appearance设置为NO.

我知道如何MFMailComposeViewController手动调用它时自定义,但它会自动弹出.如何将我的样式应用于它？

Answer 1

编辑

自定义MFMailComposeViewController外观是一个非常糟糕的主意，很可能会让您的应用程序被 Apple 拒绝。仅当您不打算将应用程序提交给 Apple 时，才应使用以下解决方案。

看起来我解决了它，感谢Ray Wenderlich（再次......）。这是完整的代码：

- (void)viewDidLoad
{
    [super viewDidLoad];

    […] // Initializations

    // Link detection
    [_textView.attributedText addAttribute:NSLinkAttributeName value:@"mail://contact" range:[[content string] rangeOfString:@"contact@mymail.com"]];

    _textView.delegate = self;

}

// Handle the link tap yourself
- (BOOL)textView:(UITextView *)textView shouldInteractWithURL:(NSURL *)URL inRange:(NSRange)characterRange {

    if ([[URL scheme] isEqualToString:@"mail"]) {

        MFMailComposeViewController *mailVC = [[MFMailComposeViewController alloc] init];
        [mailVC setToRecipients:@[@"contact@ mymail.com"]];
        [mailVC setSubject:@"About QuickReminder for iOS"];
        mailVC.mailComposeDelegate = self;

        // Re-set the styling
        [mailVC.navigationBar setBarTintColor:myGreyColor];
        [mailVC.navigationBar setTitleTextAttributes:@{NSForegroundColorAttributeName: [UIColor whiteColor], NSFontAttributeName: myFont}];
        [mailVC.navigationBar setTintColor:[UIColor whiteColor]];

        [self presentViewController:mailVC animated:YES completion:^{
            [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
        }];

        return NO;
    }
    return YES;
}

- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error
{
    // Notifies users about errors associated with the interface
    switch (result)
    {
        case MFMailComposeResultCancelled:
            NSLog(@"Result: canceled");
            break;
        case MFMailComposeResultSaved:
            NSLog(@"Result: saved");
            break;
        case MFMailComposeResultSent:
        {
            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Result" message:@"Mail Sent Successfully" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
            [alert show];
        }
            break;
        case MFMailComposeResultFailed:
            NSLog(@"Result: failed");
            break;
        default:
            NSLog(@"Result: not sent");
            break;
    }

    [controller dismissViewControllerAnimated:YES completion:nil];
}