iOS发送邮件的代码

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  1.导入库文件:MessageUI.framework

                     2.引入头文件

                     3.实现代理<MFMailComposeViewControllerDelegate> 和 <UINavigationControllerDelegate>

@代码示例:

    - (void)didClickSendEmailButtonAction{  
      
        if ([MFMailComposeViewController canSendMail] == YES) {  
              
            MFMailComposeViewController *mailVC = [[MFMailComposeViewController alloc] init];  
            //  设置代理(与以往代理不同,不是"delegate",千万不能忘记呀,代理有3步)  
            mailVC.mailComposeDelegate = self;  
            //  收件人  
            NSArray *sendToPerson = @[@"humingtao2014@gmail.com"];  
            [mailVC setToRecipients:sendToPerson];  
            //  抄送  
            NSArray *copyToPerson = @[@"humingtao2013@126.com"];  
            [mailVC setCcRecipients:copyToPerson];  
            //  密送  
            NSArray *secretToPerson = @[@"563821250@qq.com"];  
            [mailVC setBccRecipients:secretToPerson];  
            //  主题  
            [mailVC setSubject:@"hello world"];  
            [self presentViewController:mailVC animated:YES completion:nil];  
            [mailVC setMessageBody:@"魑魅魍魉,哈哈呵呵嘿嘿霍霍" isHTML:NO];  
        }else{  
          
            NSLog(@"此设备不支持邮件发送");  
          
        }  
      
    }  
      
    - (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error{  
      
        switch (result) {  
            case MFMailComposeResultCancelled:  
                NSLog(@"取消发送");  
                break;  
            case MFMailComposeResultFailed:  
                NSLog(@"发送失败");  
                break;  
            case MFMailComposeResultSaved:  
                NSLog(@"保存草稿文件");  
                break;  
            case MFMailComposeResultSent:  
                NSLog(@"发送成功");  
                break;  
            default:  
                break;  
        }  
          
        [self dismissViewControllerAnimated:YES completion:nil];  
    }  
      
    //  系统发送,模拟器不支持,要用真机测试  
    - (void)didClickSendSystemEmailButtonAction{  
      
        NSURL *url = [NSURL URLWithString:@"humingtao2014@gmail.com"];  
        if ([[UIApplication sharedApplication] canOpenURL:url] == YES) {  
              
            [[UIApplication sharedApplication] openURL:url];  
          
        }else{  
          
            NSLog(@"此设备不支持");  
        }  
      
    }