通知

通知

当B 完成事件之后，让B vc发送通知给A vc

在A vc 中注册通知和实现通知
注册

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(rePostData:) name:@"isPost" object:nil];

实现

// 当发帖完成之后刷新数据
- (void)rePostData:(NSNotification *)sender {
  NSString *userid = [[NSUserDefaults standardUserDefaults]objectForKey:@"userid"];
  //  获取文件访问的路劲
  NSString *path = [NSString stringWithFormat:@"%@api/comments/MessageList",testHttp];
  NSMutableDictionary *params = [NSMutableDictionary dictionary];
  params[@"keyword"] = @(self.keyword);
  params[@"userid"] = userid;
  params[@"page"] = @1;
  [self.manager POST:path parameters:params progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {

    [self.SocialDataList insertObject:[MessageModel mj_objectArrayWithKeyValuesArray:responseObject[@"data"]][0] atIndex:0];
    [self.myTableView reloadData];

    [self.myTableView.mj_header endRefreshing];
  } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
    [self.myTableView.mj_header endRefreshing];
    self.myTableView.mj_footer.hidden = YES;
  }];

}

发送通知
当B完成操作之后 在B vc中发送通知

[[NSNotificationCenter defaultCenter]postNotificationName:@"isPost" object:nil];