image into mail body in iphone

how to insert uiimage into body of mail composer window.. i have with this code:

NSMutableString *emailBody = [[[NSMutableString allocinitWithString:@""] retain];
[emailBody appendString:@"
 type text here
"];
UIImage *emailImage =开发者_如何学Go [UIImage imageNamed:@"20-gear2.png"];    NSData *imageData = [NSData dataWithData:UIImagePNGRepresentation(emailImage)];
NSString *base64String = [imageData base64EncodedString];
[emailBody appendString:[NSString stringWithFormat:@"
",base64String]];
NSLog(@"emailBody....%@", emailBody);
[emailBody appendString:@""];

    NSLog(@"emailBody1....%@", emailBody);

MFMailComposeViewController *mailComposerController =   [[MFMailComposeViewController alloc] init];
[mailComposerController  setSubject:@"Your subject"];
[mailComposerController setMessageBody:nil isHTML:YES];
NSData *imageData   =   UIImagePNGRepresentation([UIImage imageNamed:"your image.png"]);
[mailComposerController addAttachmentData:imageData mimeType:@"image/png" fileName:@"image.png"];

Hope this help you...

NSData *imageData = UIImagePNGRepresentation(yourImage);
[mailController addAttachmentData:imageData mimeType:@"image/png" fileName:imageName];