Question

当我使用swift 3导航到iOS 10中的MFMailComposeViewController时，我目前在尝试设置取消和发送按钮颜色时遇到了一些困难。我尝试设置MFMailComposeViewController的UINavigationController的色调，条形图和项目没有成功。任何帮助将不胜感激。

我如何打开MFMailComposeViewController：

/* Open mail for the user to send a help emaail with questions about the app */
    func sendEmail() {

        if MFMailComposeViewController.canSendMail() {

            let mail = MFMailComposeViewController()
            mail.mailComposeDelegate = self
            mail.setToRecipients(["himom@gmail.com"])
            mail.navigationBar.tintColor = UIColor.blue

            present(mail, animated: true)

        }
    }

    /* Called when mail is dismissed */
    func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Error?) {
        controller.dismiss(animated: true)
    }

Answer 1

如果您想要整个应用程序的导航颜色，即按钮的色调在整个应用程序中匹配，您可以尝试：

在gci "J:\Logs" -include "*.txt" -file -recurse | % {ren $_ "report.txt"}

的

        Map<String, Object> prefs = new HashMap<String, Object>();
        prefs.put("safebrowsing.enabled", "false");
        prefs.put("safebrowsing.malware.enabled", "false");
        prefs.put("download.prompt_for_download", "false"); 
        prefs.put( "profile.content_settings.pattern_pairs.*.multiple-automatic-downloads", 1 );
        prefs.put("download.default_directory", downloadDir);           
        options.setExperimentalOption("prefs", prefs);

内

func application(_ application: UIApplication, didFinishLaunchingWithOptions

如果你只想为MailViewController这样做，试试这个：

AppDelegate

Answer 2

我的最终答案是来自这里的第一条评论：How to change color of MFMailComposeViewController texts and button images? 你必须在哪里设置

mail.view.tintColor = .green

然后我的按钮显示为绿色。

在MFMailComposeViewController中设置导航栏项目颜色

2 个答案: