MFMailComposeViewController在iOS 7下无法正常工作

Question

[MFMailComposeViewController canSendMail] works well under iOS 6 application, but fail for under iOS7.

iOS 6 mail function:

if ([MFMailComposeViewController canSendMail])
{
    MFMailComposeViewController *mailer = [[MFMailComposeViewController alloc] init];
    mailer.mailComposeDelegate = self;
    [mailer setSubject:@"A Message from Bloomingkids"];
    NSArray *toRecipients = [NSArray arrayWithObjects:@"support@bloomingkids.com", nil];
    [mailer setToRecipients:toRecipients];
    UIImage *myImage = [UIImage imageNamed:@"bloomingKidsLogo.png"];
    NSData *imageData = UIImagePNGRepresentation(myImage);
    [mailer addAttachmentData:imageData mimeType:@"image/png" fileName:@"Images"];
    NSString *emailBody = @"Have you seen the Bloomingkids web site?";
    [mailer setMessageBody:emailBody isHTML:NO];
    [self presentViewController:mailer animated:YES completion:nil];
}
else
{
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Failure"
                                                    message:@"Your device doesn't support the composer sheet"
                                                   delegate:nil
                                          cancelButtonTitle:@"OK"
                                          otherButtonTitles: nil];
    [alert show];
}

Note: It's working on simulator but not on iPad. The error was Your device doesn't support composer sheet

Answer 1

在您的设备中添加任何电子邮件帐户意味着要设置一个电子邮件帐户...