How to send picture as an attachment with sms programmatically?

I want to send a picture via an iphone开发者_如何学运维 app.

Since it's not possible to send MMS, I found some answers speaking about sending the picture as an attachment with the SMS. How to do that programmatically?

Here is the code:

    MFMessageComposeViewController *sms = [[MFMessageComposeViewController alloc]init];
    [sms setMessageComposeDelegate:self];
    [sms setRecipients:[NSArray arrayWithObject:@"123-4567"]];
    [sms setSubject:@"Subject"];
    [sms setBody:@"Body"];
    [sms addAttachmentData:myData typeIdentifier:@"type" filename:myFile];
    [sms setModalTransitionStyle:UIModalTransitionStyleFlipHorizontal];
    [self presentViewController:sms animated:YES completion:NO];

Hope it helps.