Unity Facebook AppRequestCallback

本文关键字：AppRequestCallback Facebook Unity | 更新日期: 2023-09-27 17:50:14

当我发送应用程序请求后，我有一个问题，以获得用户的id。在facebook手册中，它被描述为
"已创建请求的接收方用户id数组。"
https://developers.facebook.com/docs/unity/reference/current/FB.Apprequest
我的回调代码是这样的:
if(responseObject.TryGetValue ("to", out to)) { string[] output = (string[])to; print(output.Length); }> 是这给了我错误提示: "InvalidCastException:不能从源类型强制转换到目标类型。" 我也尝试过对象中的foreach字符串，但它只是转换。我能得到一些帮助上得到的用户数量，我已经发送请求，请。非常感谢。


 
    首先将其强制转换为对象列表
if(responseObject.TryGetValue ("to", out to)) { 

    List<object> output = (List<object>)to; 
    print(output.Count);
    foreach(object uid in output) {
        print(uid.ToString());
    }
}
 
  private void RequestFriendsCallback(IGraphResult result)
{
    if (!string.IsNullOrEmpty(result.RawResult))
    {
        var resultDictionary = result.ResultDictionary;
        if (resultDictionary.ContainsKey("data"))
        {
            var dataArray = (List<object>)resultDictionary["data"];//2.1.4
            var dic = dataArray.Select(x => x as Dictionary<string, object>).ToArray();
            foreach (var item in dic)
            {
                string id = (string)item["id"];
                var url = item.Where(x => x.Key == "picture").SelectMany(x => x.Value as Dictionary<string, object>).Where(x => x.Key == "data").SelectMany(x => x.Value as Dictionary<string, object>).Where(i => i.Key == "url").First().Value;
                FriendData friend = Friends.Where(x => x.FacebookID == id).FirstOrDefault();
                if (friend != null)
                    GetPictureByURL("" + url, friend);
            }
        }
        if (!string.IsNullOrEmpty(result.Error))
        {
            Debug.Log(result.Error);
        }
    }
}