Facebook Session.StatusCallback永远不会在片段中被调用

Question

我正在开发一个拥有FB授权的应用程序，我有一个主要活动（片段活动），用户可以通过他的名字/密码或FB登录，当他点击“登录FB”按钮时将被移动到FB-auth片段，现在它可以正常工作非常好但不知何故 Session.StatusCallback 永远不会被调用，我已经注意到这一点，当我试图从FB获取用户数据。那么它可能是什么原因？

这是我的FBFragment代码：

public class FragmentLoginFacebook extends Fragment {

private static final String TAG = FragmentLoginFacebook.class.getSimpleName();

private UiLifecycleHelper uiHelper;

private final List<String> permissions;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.activity_for_fragments, container, false);
    Settings.addLoggingBehavior(LoggingBehavior.INCLUDE_ACCESS_TOKENS);
    Session session = Session.getActiveSession();

    if (session == null) {
        if (savedInstanceState != null) {
            session = Session.restoreSession(getActivity(), null, statusCallback, savedInstanceState);
        }
        if (session == null) {
            session = new Session(getActivity());
        }
        Session.setActiveSession(session);
    }

    if (!session.isOpened() && !session.isClosed()) {
        session.openForRead(new Session.OpenRequest(this).setCallback(statusCallback).setPermissions(permissions));
    } else {
        Session.openActiveSession(getActivity(), this, true, statusCallback);
    }

    return view;
}

public FragmentLoginFacebook() {
    permissions = Arrays.asList("user_status", "email", "user_location", "user_birthday", "user_likes", "publish_actions");
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    uiHelper = new UiLifecycleHelper(getActivity(), statusCallback);
    uiHelper.onCreate(savedInstanceState);
}

@Override
public void onResume() {
    super.onResume();

    // For scenarios where the main activity is launched and user
    // session is not null, the session state change notification
    // may not be triggered. Trigger it if it's open/closed.
    Session session = Session.getActiveSession();
    if (session != null && (session.isOpened() || session.isClosed())) {
        onSessionStateChange(session, session.getState(), null);
    }

    uiHelper.onResume();
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    uiHelper.onActivityResult(requestCode, resultCode, data);

}

@Override
public void onPause() {
    super.onPause();
    uiHelper.onPause();
}

@Override
public void onDestroy() {
    super.onDestroy();
    uiHelper.onDestroy();
}

@Override
public void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    uiHelper.onSaveInstanceState(outState);
}

private void onSessionStateChange(Session session, SessionState state, Exception exception) {
    if (state.isOpened()) {
        Log.i(TAG, "Logged in...");
        Request.newMeRequest(session, new Request.GraphUserCallback() {
            @Override
            public void onCompleted(GraphUser user, Response response) {
                if (user != null) {
                    Toast.makeText(getActivity(), "User is " + user.getUsername(), Toast.LENGTH_LONG).show();
                }
            }
        });
    } else if (state.isClosed()) {
        Log.i(TAG, "Logged out...");
    }
}

private Session.StatusCallback statusCallback = new Session.StatusCallback() {

        //--> Never get Called
    @Override
    public void call(Session session, SessionState state, Exception exception) {

        onSessionStateChange(session, state, exception);

    }
        //Cause i'd never seen a Login/Logout logcat messages from onSessionStateChange
};

}

UPD： 我的活动课

public class ActivityLogin extends FragmentActivity {
private Fragment mCurrentFragment;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_for_fragments);
    if (savedInstanceState == null) {
        mCurrentFragment = new FragmentLoginMain();
        if(getSupportFragmentManager().findFragmentByTag("login") == null){
            getSupportFragmentManager().beginTransaction().add(R.id.fragmentLayout, mCurrentFragment, "login").commit();
        }
    }
}

}

UPD＃2 通过 Roger Alien 回答我在活动中添加了

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub
        super.onActivityResult(requestCode, resultCode, data);
         if (resultCode == Activity.RESULT_OK && (requestCode & 0xFFFF) == 0xFACE) { // if it was request to authorize facebook user
                for (Fragment fragment : getSupportFragmentManager().getFragments()) { // transmit to all fragments? is it safe..? // TODO check logic
                    if (fragment != null) {
                        fragment.onActivityResult(requestCode & 0xffff, resultCode, data);
                    }
                }
            }
    }

仍然没有工作！