public static FacebookAppSettings LoadFromFile()
        {
            if (s_Instance == null)
            {
                lock (s_Lock)
                {
                    if (s_Instance == null)
                    {
                        try
                        {
                            s_Instance = FileUtils.LoadFromFile <FacebookAppSettings>(r_SettingsFilePath);
                        }
                        catch
                        {
                            s_Instance = new FacebookAppSettings();
                        }
                    }
                }
            }

            return(s_Instance);
        }
 public void DeleteFile()
 {
     FileUtils.DeleteFile(r_SettingsFilePath);
     s_Instance = null;
 }