自定义从UITextView打开的自动MFMailComposeViewController

时间:2014-03-03 10:55:48

标签: ios uitextview mfmailcomposeviewcontroller

我有一个简单的UITextView,其中包含电子邮件链接。 textview是可选择的并检测链接。通过这种方式,您可以单击电子邮件,然后以模式方式打开MFMailComposeViewController视图控制器。

但是,我在应用程序启动时进行了一些自定义:

[[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,状态栏为黑色,即使我的Info.plist显示UIStatusBarStyleLightContentView controller-based status bar appearance设置为NO

我知道如何在手动调用时自定义MFMailComposeViewController,但此处会自动弹出。如何将我的样式应用于它?

3 个答案:

答案 0 :(得分:3)

修改

自定义MFMailComposeViewController的外观是一个非常糟糕的主意,很可能会让Apple拒绝您的应用。只有在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];
}

答案 1 :(得分:0)

然后您应该通过以下外观方法而不是修改整个应用程序导航栏: -

[[UINavigationBar appearanceWhenContainedIn:<#(__unsafe_unretained Class<UIAppearanceContainer> *), ...#>, nil]setTintColor:[UIColor greenColor]];

因为您的MFMailComposeViewController会打开您的应用程序而您正在修改整个应用程序的导航栏,因此MFMailComposeViewController的导航栏正在修改。 使用上面的外观方法,您可以修改所选的类或父类,通过它们可以修改派生类,这不会修改MFMailComposeViewController,因为它不会是您父类的一部分。

答案 2 :(得分:0)

Swift 3:

extension MFMailComposeViewController {
    override open func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        UIApplication.shared.statusBarStyle = UIStatusBarStyle.lightContent
    }

    open override func viewDidLoad() {
        super.viewDidLoad()
        navigationBar.isTranslucent = false
        navigationBar.isOpaque = false
        navigationBar.barTintColor = UIColor.white
        navigationBar.tintColor = UIColor.white
    }
}