在移动设备中如何使电子邮件在应用程序中打开

Question

我想在我的电子邮件中集成一个按钮，这样当用户从桌面浏览器单击它时，该按钮会在浏览器本身中打开。

如果用户从移动设备上查看它，应该在应用程序中打开。

我该怎么做？

Answer 1

你可以试试这个： 不要忘记声明它的委托。

if ([MFMailComposeViewController canSendMail]) {
        MFMailComposeViewController * emailController = [[MFMailComposeViewController alloc] init];
        emailController.mailComposeDelegate = self;

        [emailController setSubject:subject];
        [emailController setMessageBody:mailBody isHTML:YES];   
        [emailController setToRecipients:recipients];

        [self presentViewController:emailController animated:YES completion:nil];

        [emailController release];
    }
    // Show error if no mail account is active
    else {
        UIAlertView * alertView = [[UIAlertView alloc] initWithTitle:@"Warning" message:@"You must have a mail account in order to send an email" delegate:nil cancelButtonTitle:NSLocalizedString(@"OK", @"OK") otherButtonTitles:nil];
        [alertView show];
        [alertView release];
    }