Facebook Android SDK 3.0 always returns OPENING when logging in

Question

I followed the instructions at https://developers.facebook.com/docs/howtos/androidsdk/3.0/login-with-facebook/. When I touch the "Log In"-button, the session state is OPENING - always. When I try to post a story to the user's wall I get an error stating

"Session: an attempt was made to request new permissions for a session that has a pending request."

Here is my code:

public class MainFragment extends Fragment {
    private static final String TAG = "MainFragment";
    private UiLifecycleHelper uiHelper;

    private Session.StatusCallback callback = new Session.StatusCallback() {
        @Override
        public void call(Session session, SessionState state,
                Exception exception) {
            onSessionStateChange(session, state, exception);
        }
    };

    private void onSessionStateChange(Session session, SessionState state,
            Exception exception) {
        if (state.isOpened()) {
            Log.d(TAG, "Logged in...");
        } else if (state.isClosed()) {
            Log.d(TAG, "Logged out...");
        } else {
            Log.d(TAG, "Unknown state: " + state);
        }
    }

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

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.facebook_login, container, false);
        LoginButton authButton = (LoginButton) view
                .findViewById(R.id.authButton);
        authButton.setFragment(this);

        return view;
    }

    private boolean isSubsetOf(Collection<String> subset,
            Collection<String> superset) {
        for (String string : subset) {
            if (!superset.contains(string)) {
                return false;
            }
        }
        return true;
    }

    private static final List<String> PERMISSIONS = Arrays
            .asList("publish_actions");
    private static final String PENDING_PUBLISH_KEY = "pendingPublishReauthorization";
    private boolean pendingPublishReauthorization = false;

    public void publishStory() {
        Session session = Session.getActiveSession();

        if (session != null) {

            // Check for publish permissions
            List<String> permissions = session.getPermissions();
            if (!isSubsetOf(PERMISSIONS, permissions)) {
                pendingPublishReauthorization = true;
                Session.NewPermissionsRequest newPermissionsRequest = new Session.NewPermissionsRequest(
                        this, PERMISSIONS);
                session.requestNewPublishPermissions(newPermissionsRequest);
                return;
            }

            Bundle postParams = new Bundle();
            postParams.putString("name", "Facebook SDK for Android");
            postParams.putString("caption",
                    "Build great social apps and get more installs.");
            postParams
                    .putString(
                            "description",
                            "The Facebook SDK for Android makes it easier and faster to develop Facebook integrated Android apps.");
            postParams.putString("link",
                    "https://developers.facebook.com/android");
            postParams
                    .putString("picture",
                            "https://raw.github.com/fbsamples/ios-3.x-howtos/master/Images/iossdk_logo.png");

            Request.Callback callback = new Request.Callback() {
                public void onCompleted(Response response) {
                    JSONObject graphResponse = response.getGraphObject()
                            .getInnerJSONObject();
                    String postId = null;
                    try {
                        postId = graphResponse.getString("id");
                    } catch (JSONException e) {
                        Log.i(TAG, "JSON error " + e.getMessage());
                    }
                    FacebookRequestError error = response.getError();
                    if (error != null) {
                        Toast.makeText(getActivity().getApplicationContext(),
                                error.getErrorMessage(), Toast.LENGTH_SHORT)
                                .show();
                    } else {
                        Toast.makeText(getActivity().getApplicationContext(),
                                postId, Toast.LENGTH_LONG).show();
                    }
                }
            };

            Request request = new Request(session, "me/feed", postParams,
                    HttpMethod.POST, callback);

            RequestAsyncTask task = new RequestAsyncTask(request);
            task.execute();
        }

    }
}

What's wrong?

Edit: I'd also like to mention that the text on the "Log In"-Button doesn't change. I don't get an error while authenticating, but as far as I read it should change to "Log Out".

Answer 1

It wasn't easy to figure this out. :-)

If you actually check out exception in onSessionStateChange(), you'll see that it's not really simply stuck in OPENING. That exception contains: java.lang.UnsupportedOperationException: Session: an attempt was made to open a session that has a pending request.

The reason I finally found was that onActivityResult() wasn't called. It's its responsibility to call back to uiHelper and that call will call the finishing part of the login, so it if isn't called, the state stays OPENING forever. Apart from the obvious pieces of advice above, this is what I found and they are all needed for the login to work:

Make sure you use both a fragment and an activity, as described in the FB documentation. Even if the doc hints at an activity being enough, it isn't. You need both even if the activity has nothing else but calling the single fragment.

Make sure you have no history set for the activity (neither in the manifest nor in code).

Make sure you override the fragment's onActivityResult() as per the documentation. And make sure you override the same in the activity as well:

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

Yes, this seems strange but it doesn't work without it.