Google 加上 LoadFriends 失败

Google Plus LoadFriends fail

我从这个 link 下载了 play games unity plugin : https://github.com/playgameservices/play-games-plugin-for-unity

我现在正在尝试将插件导入到我的 Unity 项目中,这是下面当前的 MainGui.cs 代码:

Social.localUser.Authenticate((bool success) => {
    mWaitingForAuth = false;
    if (success) {
        mStatusText = "Welcome " + Social.localUser.userName + ","+Social.localUser.id;

        Social.localUser.LoadFriends((bool s) => {
            if(s) {
                foreach(IUserProfile p in Social.localUser.friends){
                    mStatusText += "\n" + p.id + "," + p.userName;
                }
                mStatusText += "\nLoadFriends success...";
            }
            else
                mStatusText += "\nLoadFriends fail...";
        });
    } else {
        mStatusText = "Authentication failed.";
    }
    Debug.Log (mStatusText);
});

当我 运行 这个时,我总是得到 mStatusText 作为 "LoadFriends fail..."。我无法理解是什么导致了这里的问题。

功能LoadFriends()尚未实现,如您所见here in the source.