Afnetworking获取数据过程中MBProgressHUD提示，获取成功后MBProgressHUD消失。

    progress_hud = [MBProgressHUDshowHUDAddedTo:self.viewanimated:YES];

   progress_hud.labelText =NSLocalizedString(@"数据加载中...",nil);

    

   NSInteger result = [UtilityisConnectionAvailable:self.view];

   if (!result) {

        [progress_hudremoveFromSuperview];

       return;

    }

    

   NSString *urlStr=[NSStringstringWithFormat:@"%@%@%@",URL_PREXI,@"facelove/connect_getNewFriend.action?userid=",[USER_DEFAULTobjectForKey:@"USERNAME"]];

   NSMutableURLRequest* request  = [NSMutableURLRequestrequestWithURL:[NSURLURLWithString:urlStr]];

   AFHTTPRequestOperation* op = [[AFHTTPRequestOperationalloc]initWithRequest:request];

    op.responseSerializer = [AFHTTPResponseSerializerserializer];

    [opsetCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation,id responseObject) {

       NSString* str_response = operation.responseString;

       NSData* data = [str_responsedataUsingEncoding:NSUTF8StringEncoding];

       id dict = [NSJSONSerializationJSONObjectWithData:dataoptions:0error:nil];

       if ([[dictobjectForKey:@"result"]isEqualToString:@"success"])

        {

           NSMutableDictionary* dict1 = [dictobjectForKey:@"newfriend"];

            

           for (id everydictin dict1)

            {

                [arr_nicknameaddObject:[everydictobjectForKey:@"nickname"]];

                [arr_personalsignaddObject:[everydictobjectForKey:@"signature"]];

                [arr_sexaddObject:[everydictobjectForKey:@"sex"]];

                

                [arr_schooladdObject:[everydictobjectForKey:@"school"]];

                [arr_useridaddObject:[everydictobjectForKey:@"userid"]];

                [arr_addstatusaddObject:[everydictobjectForKey:@"addstatus"]];

                [arr_headimageaddObject:[everydictobjectForKey:@"headimage"]];

            }

            [progress_hudremoveFromSuperview];

            

            [tv_newfriendreloadData];

            

        }elseif([dictobjectForKey:@"fail"]){

           MBProgressHUD* HUD1 = [MBProgressHUDshowHUDAddedTo:self.viewanimated:YES];

            [HUD1 showAnimated:YESwhileExecutingBlock:^{

               sleep(MBProgressHUD_SLEEP_SECOND);

                

            }completionBlock:^{

                [HUD1removeFromSuperview];

                [progress_hudremoveFromSuperview];

                

            }];

        }

        

    }failure:^(AFHTTPRequestOperation *operation,NSError *error) {

        

    }];

    

   NSOperationQueue *queue = [[NSOperationQueuealloc]init];

    [queueaddOperation:op];