public void Login() { if (!FB.IsLoggedIn) { FB.Login("email,publish_actions,user_friends", LoginCallback);//user_likes,email, "email,publish_actions" } else { _socialManager.OnLoginResponse(); // FB.API("me?fields=id,first_name,last_name", Facebook.HttpMethod.GET, UserCallBack);//"me?fields=id,email,first_name,last_name" } }