朋友在线状态 - Facebook SDK 3答案

【问题标题】：Friends Online Presence - Facebook SDK 3朋友在线状态 - Facebook SDK 3
【发布时间】：2013-07-05 11:56:31
【问题描述】：

是否可以使用 Facebook SDK 找到我的朋友在线状态（在线、离开或错误）？

使用 FQL 我可以这样做：

   SELECT uid, name,pic_small,pic_big,online_presence FROM user
  WHERE online_presence IN ('active') AND uid IN
   (SELECT uid2 FROM friend WHERE uid1 = me())order by name

但是有没有办法在 facebook SDK 中做到这一点，可能使用这样的东西：

  [FBRequest requestForGraphPath:@"some/end/point/that/I/am/missing"]

任何帮助表示赞赏。谢谢。

【问题讨论】：

我也有同样的问题

标签： ios facebook facebook-ios-sdk

【解决方案1】：

很抱歉在这里发布它迟到了......我自己解决了这个问题，这是我的解决方案：

- (void)getFriendsOnlinePresence
{

NSString* fql1 = [NSString stringWithFormat:@"SELECT uid,pic_square, name,online_presence FROM user WHERE uid IN (SELECT uid2 FROM friend WHERE uid1 = me()) ORDER BY name"];
NSMutableDictionary * params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                fql1, @"q",
                                nil];
[FBSession openActiveSessionWithAllowLoginUI:NO];
[FBRequestConnection startWithGraphPath:@"fql"
                             parameters:params
                             HTTPMethod:@"GET"
                      completionHandler:^(FBRequestConnection *connection,
                                          id result,
                                          NSError *error) {
                          if (error) {
                              NSLog(@"Error: %@", [error localizedDescription]);
                          } else {
                              NSLog(@"Result: %@", result);
                              }
                          }
//Notify via notification center
                      }];

}

【讨论】：

【解决方案2】：

如果您可以在 FQL 中执行此操作，那么让它在 SDK 中工作只需找出正确的查询即可。您的查询

SELECT uid, name,pic_small,pic_big,online_presence FROM user
  WHERE online_presence IN ('active') AND uid IN
   (SELECT uid2 FROM friend WHERE uid1 = me()) order by name

执行为graph.facebook.com/fql?q=SELECT uid, name,pic_small,pic_big,online_presence FROM user WHERE online_presence IN ('active') AND uid IN (SELECT uid2 FROM friend WHERE uid1 = me()) order by name，基本上是HTTP GET /fql?q=<QUERY>

所以我相信只需要在requestForGraphPath 中将路径设置为fql

FBRequest *fql = [FBRequest requestForGraphPath:@"fql"];
[fql.parameters setObject:@"SELECT uid, name,pic_small,pic_big,online_presence FROM user WHERE online_presence IN ('active') "
                          @"AND uid IN (SELECT uid2 FROM friend WHERE uid1 = me()) order by name"
                   forKey:@"q"]

最新的文档虽然在FBRequestConnection 下显示了带有startWithGraphPath 的示例

NSString *query =
    @"SELECT uid, name,pic_small,pic_big,online_presence FROM user WHERE online_presence IN ('active') "
    @"AND uid IN (SELECT uid2 FROM friend WHERE uid1 = me()) order by name";
    // Set up the query parameter
    NSDictionary *queryParam = @{ @"q": query };
    // Make the API request that uses FQL
    [FBRequestConnection startWithGraphPath:@"/fql"
                                 parameters:queryParam
                                 HTTPMethod:@"GET"
                          completionHandler:^(FBRequestConnection *connection,
                                              id result,
                                              NSError *error) {
        if (error) {
            NSLog(@"Error: %@", [error localizedDescription]);
        } else {
            NSLog(@"Result: %@", result);
        }
    }];

来源：https://developers.facebook.com/docs/howtos/run-fql-queries-ios-sdk/

【讨论】：