短信|彩信

1.初始MessageUI.framework

在MessageUI.framework中主要有两个控制器类分别用于发送短信
（MFMessageComposeViewController）和邮件（MFMailComposeViewController）,它们均继承于UINavigationController。

2.发送彩信 

a、创建对象

@property(nonatomic, weak)IBOutlet UITextField *consignee;//收件人
@property(nonatomic, weak)IBOutlet UITextField *mainBody;//正文
@property(nonatomic, weak)IBOutlet UITextField *subject;//主题
@property(nonatomic, weak)IBOutlet UITextField *attachments;//附件

       b、发彩信

- (IBAction)sendMessageClick:(UIButton *)sender{

     (1)判断是否可以发送文本: 
    if ([MFMessageComposeViewController canSendText]) {
        MFMessageComposeViewController *messageControlller = [[MFMessageComposeViewController alloc]init];
         //收件人 :
        messageControlller.recipients = [self.consignee.text componentsSeparatedByString:@","];
        //信息正文：
        messageControlller.body = self.mainBody.text;
        //设置代理(<**MFMessageComposeViewControllerDelegate**>) 
        messageControlller.**messageComposeDelegate** = self;
      (2)判断运营商是否支持主题 
        if ([MFMessageComposeViewController canSendSubject]) {
            messageControlller.subject = self.subject.text;
        }else{
                    NSLog(@"不支持主题");
        }
      (3)判断运营商是否支持附件  
          if ([MFMessageComposeViewController canSendAttachments]) {
         // 发送纯文本形式
            NSArray *attachments = [_attachments.text componentsSeparatedByString:@","];
            if (attachments.count > 0) {
                [attachments enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
                    NSString *path = [[NSBundle mainBundle]pathForResource:obj ofType:nil];
                    NSURL *url = [NSURL fileURLWithPath:path];
                    [messageControlller addAttachmentURL:url
                                   withAlternateFilename:obj];
                }];
            }
          // 发送照片类型 
            NSString *path = [[NSBundle mainBundle]pathForResource:@"photo.jpg" ofType:nil];
            NSURL *url = [NSURL URLWithString:path];
            NSData *data = [NSData dataWithContentsOfURL:url];
            [messageControlller addAttachmentData:data typeIdentifier:@"public.image" filename:@"photo.jpg"];

        }else{

            NSLog(@"不支持附件");
        }
           [self presentViewController:messageControlller animated:YES completion:nil];
    }

}

3、协议方法

- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result{
    switch (result) {
        case MessageComposeResultCancelled:
            NSLog(@"取消发送");
            break;
        case MessageComposeResultSent:
            NSLog(@"发送成功");
            break;
        case MessageComposeResultFailed:
            NSLog(@"发送失败");
            break;
        default:
            break;
    }
    [self dismissViewControllerAnimated:YES completion:nil];
}