发送一个文件作为附件在目标c

我想通过从图像select器中select一个文件（图像）作为附件邮寄。 在iOS Objective-C中，我可以附加和发送文件（特别是图像）的适当方式是什么？

Answer 1

使用下面的方法

-(void)displayComposerSheet { MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init]; picker.mailComposeDelegate = self; [picker setSubject:@"Check out this image!"]; // Set up recipients // NSArray *toRecipients = [NSArray arrayWithObject:@"[e-mail]"]; // NSArray *ccRecipients = [NSArray arrayWithObjects:@"[e-mail]", @"[e-mail]", nil]; // NSArray *bccRecipients = [NSArray arrayWithObject:@"[e-mail]"]; // [picker setToRecipients:toRecipients]; // [picker setCcRecipients:ccRecipients]; // [picker setBccRecipients:bccRecipients]; // Attach an image to the email UIImage *coolImage = ...; NSData *myData = UIImagePNGRepresentation(coolImage); [picker addAttachmentData:myData mimeType:@"image/png" fileName:@"coolImage.png"]; // Fill out the email body text NSString *emailBody = @"My cool image is attached"; [picker setMessageBody:emailBody isHTML:NO]; [self presentModalViewController:picker animated:YES]; [picker release]; } 

并实施委托方法

 - (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error { // Notifies users about errors associated with the interface switch (result) { case MFMailComposeResultCancelled: NSLog(@"Result: canceled"); break; case MFMailComposeResultSaved: NSLog(@"Result: saved"); break; case MFMailComposeResultSent: NSLog(@"Result: sent"); break; case MFMailComposeResultFailed: NSLog(@"Result: failed"); break; default: NSLog(@"Result: not sent"); break; } [self dismissModalViewControllerAnimated:YES]; } 

并在你的接口文件

 #import <MessageUI/MFMailComposeViewController.h> ... @interface ... : ... <MFMailComposeViewControllerDelegate>