com.facebook.Session Java Examples

private Request createRequest(String userID, Set<String> extraFields, Session session) {
    Request request = Request.newGraphPathRequest(session, userID + "/friends", null);

    Set<String> fields = new HashSet<String>(extraFields);
    String[] requiredFields = new String[]{
            ID,
            NAME
    };
    fields.addAll(Arrays.asList(requiredFields));

    String pictureField = adapter.getPictureFieldSpecifier();
    if (pictureField != null) {
        fields.add(pictureField);
    }

    Bundle parameters = request.getParameters();
    parameters.putString("fields", TextUtils.join(",", fields));
    request.setParameters(parameters);

    return request;
}
 

private void openSession(String applicationId, List<String> permissions,
        SessionLoginBehavior behavior, int activityCode, SessionAuthorizationType authType) {
    if (sessionTracker != null) {
        Session currentSession = sessionTracker.getSession();
        if (currentSession == null || currentSession.getState().isClosed()) {
            Session session = new Session.Builder(getActivity()).setApplicationId(applicationId).build();
            Session.setActiveSession(session);
            currentSession = session;
        }
        if (!currentSession.isOpened()) {
            Session.OpenRequest openRequest = new Session.OpenRequest(this).
                    setPermissions(permissions).
                    setLoginBehavior(behavior).
                    setRequestCode(activityCode);
            if (SessionAuthorizationType.PUBLISH.equals(authType)) {
                currentSession.openForPublish(openRequest);
            } else {
                currentSession.openForRead(openRequest);
            }
        }
    }
}
 

private Request createRequest(String userID, Set<String> extraFields, Session session) {
    Request request = Request.newGraphPathRequest(session, userID + "/friends", null);

    Set<String> fields = new HashSet<String>(extraFields);
    String[] requiredFields = new String[]{
            ID,
            NAME
    };
    fields.addAll(Arrays.asList(requiredFields));

    String pictureField = adapter.getPictureFieldSpecifier();
    if (pictureField != null) {
        fields.add(pictureField);
    }

    Bundle parameters = request.getParameters();
    parameters.putString("fields", TextUtils.join(",", fields));
    request.setParameters(parameters);

    return request;
}
 

private void openSession(String applicationId, List<String> permissions,
        SessionLoginBehavior behavior, int activityCode, SessionAuthorizationType authType) {
    if (sessionTracker != null) {
        Session currentSession = sessionTracker.getSession();
        if (currentSession == null || currentSession.getState().isClosed()) {
            Session session = new Session.Builder(getActivity()).setApplicationId(applicationId).build();
            Session.setActiveSession(session);
            currentSession = session;
        }
        if (!currentSession.isOpened()) {
            Session.OpenRequest openRequest = new Session.OpenRequest(this).
                    setPermissions(permissions).
                    setLoginBehavior(behavior).
                    setRequestCode(activityCode);
            if (SessionAuthorizationType.PUBLISH.equals(authType)) {
                currentSession.openForPublish(openRequest);
            } else {
                currentSession.openForRead(openRequest);
            }
        }
    }
}
 

private void handleLikeCommentAction(final Comment comment)
{
	pendingLikeComment = false;
	pendingCommentLike = comment;
	Session session = Session.getActiveSession();

	List<String> permissions = session.getPermissions();
	if (!permissions.containsAll(PERMISSIONS))
	{
		pendingLikeComment = true;
		requestPublishPermissions(session);
		return;
	}

	doLikeCommentAction(comment);
	pendingLikeComment = false;
}
 

private Request createRequest(String userID, Set<String> extraFields, Session session) {
    Request request = Request.newGraphPathRequest(session, userID + friendPickerType.getRequestPath(), null);

    Set<String> fields = new HashSet<String>(extraFields);
    String[] requiredFields = new String[]{
            ID,
            NAME
    };
    fields.addAll(Arrays.asList(requiredFields));

    String pictureField = adapter.getPictureFieldSpecifier();
    if (pictureField != null) {
        fields.add(pictureField);
    }

    Bundle parameters = request.getParameters();
    parameters.putString("fields", TextUtils.join(",", fields));
    request.setParameters(parameters);

    return request;
}
 

private void onSessionStateChange(Session session, SessionState state, Exception exception) {
    if (isResumed) {
        FragmentManager manager = getSupportFragmentManager();
        int backStackSize = manager.getBackStackEntryCount();
        for (int i = 0; i < backStackSize; i++) {
            manager.popBackStack();
        }
        // check for the OPENED state instead of session.isOpened() since for the
        // OPENED_TOKEN_UPDATED state, the selection fragment should already be showing.
        if (state.equals(SessionState.OPENED)) {
            showFragment(SELECTION, false);
        } else if (state.isClosed()) {
            showFragment(SPLASH, false);
        }
    }
}
 

private void handleResponseClick(int request)
{
	pendingAnnounce = false;
	Session session = Session.getActiveSession();

	List<String> permissions = session.getPermissions();
	if (!permissions.containsAll(PERMISSIONS))
	{
		pendingAnnounce = true;
		pendingRequest = request;
		requestPublishPermissions(session);
		return;
	}

	sendRequest(request);
}
 

/**
 * Closes the current session.
 */
protected final void closeSession() {
    if (sessionTracker != null) {
        Session currentSession = sessionTracker.getOpenSession();
        if (currentSession != null) {
            currentSession.close();
        }
    }
}
 

private boolean ensureOpenSession() {
    if (Session.getActiveSession() == null ||
            !Session.getActiveSession().isOpened()) {
        Session.openActiveSession(this, true, new Session.StatusCallback() {
            @Override
            public void call(Session session, SessionState state, Exception exception) {
                onSessionStateChanged(session, state, exception);
            }
        });
        return false;
    }
    return true;
}
 

/**
 * Set the Session object to track.
 * 
 * @param newSession the new Session object to track
 */
public void setSession(Session newSession) {
    if (newSession == null) {
        if (session != null) {
            // We're current tracking a Session. Remove the callback
            // and start tracking the active Session.
            session.removeCallback(callback);
            session = null;
            addBroadcastReceiver();
            if (getSession() != null) {
                getSession().addCallback(callback);
            }
        }
    } else {
        if (session == null) {
            // We're currently tracking the active Session, but will be
            // switching to tracking a different Session object.
            Session activeSession = Session.getActiveSession();
            if (activeSession != null) {
                activeSession.removeCallback(callback);
            }
            broadcastManager.unregisterReceiver(receiver);
        } else {
            // We're currently tracking a Session, but are now switching 
            // to a new Session, so we remove the callback from the old 
            // Session, and add it to the new one.
            session.removeCallback(callback);
        }
        session = newSession;
        session.addCallback(callback);
    }
}
 

/**
 * Gets the current Session.
 * 
 * @return the current Session object.
 */
protected final Session getSession() {
    if (sessionTracker != null) {
        return sessionTracker.getSession();
    }
    return null;
}
 

@Override
public void call(Session session, SessionState state, Exception exception) {
    if (wrapped != null && isTracking()) {
        wrapped.call(session, state, exception);
    }
    // if we're not tracking the Active Session, and the current session
    // is closed, then start tracking the Active Session.
    if (session == SessionTracker.this.session && state.isClosed()) {
        setSession(null);
    }
}
 

private void addBroadcastReceiver() {
    IntentFilter filter = new IntentFilter();
    filter.addAction(Session.ACTION_ACTIVE_SESSION_SET);
    filter.addAction(Session.ACTION_ACTIVE_SESSION_UNSET);
    
    // Add a broadcast receiver to listen to when the active Session
    // is set or unset, and add/remove our callback as appropriate    
    broadcastManager.registerReceiver(receiver, filter);
}
 

/**
 * Gets the current state of the session or null if no session has been created.
 * 
 * @return the current state of the session
 */
protected final SessionState getSessionState() {
    if (sessionTracker != null) {
        Session currentSession = sessionTracker.getSession();
        return (currentSession != null) ? currentSession.getState() : null;
    }
    return null;
}
 

private void fetchUserInfo() {
    if (fetchUserInfo) {
        final Session currentSession = sessionTracker.getOpenSession();
        if (currentSession != null) {
            if (currentSession != userInfoSession) {
                Request request = Request.newMeRequest(currentSession, new Request.GraphUserCallback() {
                    @Override
                    public void onCompleted(GraphUser me,  Response response) {
                        if (currentSession == sessionTracker.getOpenSession()) {
                            user = me;
                            if (userInfoChangedCallback != null) {
                                userInfoChangedCallback.onUserInfoFetched(user);
                            }
                        }
                        if (response.getError() != null) {
                            handleError(response.getError().getException());
                        }
                    }
                });
                Request.executeBatchAsync(request);
                userInfoSession = currentSession;
            }
        } else {
            user = null;
            if (userInfoChangedCallback != null) {
                userInfoChangedCallback.onUserInfoFetched(user);
            }
        }
    }
}
 

/**
 * Gets the permissions associated with the current session or null if no session 
 * has been created.
 * 
 * @return the permissions associated with the current session
 */
protected final List<String> getSessionPermissions() {
    if (sessionTracker != null) {
        Session currentSession = sessionTracker.getSession();
        return (currentSession != null) ? currentSession.getPermissions() : null;
    }
    return null;
}
 

/**
 * Gets the permissions associated with the current session or null if no session 
 * has been created.
 * 
 * @return the permissions associated with the current session
 */
protected final List<String> getSessionPermissions() {
    if (sessionTracker != null) {
        Session currentSession = sessionTracker.getSession();
        return (currentSession != null) ? currentSession.getPermissions() : null;
    }
    return null;
}
 

private void loadNotifications()
{
	pendingAnnounce = false;
	if (!hasPermissions())
	{
		pendingAnnounce = true;
		requestExtendedPermissions(Session.getActiveSession());
		return;
	}

	defineEmptyText(R.string.empty_list_no_notification);
	setIsFirstLoad(true);
	super.load();
}
 

protected void onSessionStateChange(final Session session, SessionState state, Exception exception)
{
	if (session != null && session.isOpened())
	{
		if (state.equals(SessionState.OPENED_TOKEN_UPDATED))
		{
			tokenUpdated();
		}
	}
}
 

@Override
Request getRequestForLoadData(Session session) {
    if (adapter == null) {
        throw new FacebookException("Can't issue requests until Fragment has been created.");
    }

    String userToFetch = (userId != null) ? userId : "me";
    return createRequest(userToFetch, extraFields, session);
}
 

/**
 * Returns the current Session that's being tracked if it's open, 
 * otherwise returns null.
 * 
 * @return the current Session if it's open, otherwise returns null
 */
public Session getOpenSession() {
    Session openSession = getSession();
    if (openSession != null && openSession.isOpened()) {
        return openSession;
    }
    return null;
}
 

private Request createRequest(Location location, int radiusInMeters, int resultsLimit, String searchText,
        Set<String> extraFields,
        Session session) {
    Request request = Request.newPlacesSearchRequest(session, location, radiusInMeters, resultsLimit, searchText,
            null);

    Set<String> fields = new HashSet<String>(extraFields);
    String[] requiredFields = new String[]{
            ID,
            NAME,
            LOCATION,
            CATEGORY,
            WERE_HERE_COUNT
    };
    fields.addAll(Arrays.asList(requiredFields));

    String pictureField = adapter.getPictureFieldSpecifier();
    if (pictureField != null) {
        fields.add(pictureField);
    }

    Bundle parameters = request.getParameters();
    parameters.putString("fields", TextUtils.join(",", fields));
    request.setParameters(parameters);

    return request;
}
 

private void handleSetNotifications()
{
	SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
	SharedPreferences.Editor editor = sharedPreferences.edit();

	@SuppressWarnings("deprecation") CheckBoxPreference cpref = (CheckBoxPreference) findPreference("preference_notifications");

	pendingAnnounce = false;
	final Session session = Session.getActiveSession();

	List<String> permissions = session.getPermissions();
	if (!permissions.containsAll(PERMISSIONS))
	{
		pendingAnnounce = true;
		editor.putBoolean(KlyphPreferences.PREFERENCE_NOTIFICATIONS, false);
		editor.commit();
		cpref.setChecked(false);

		AlertUtil.showAlert(this, R.string.preferences_notifications_permissions_title, R.string.preferences_notifications_permissions_message,
				R.string.ok, new DialogInterface.OnClickListener() {

					@Override
					public void onClick(DialogInterface dialog, int which)
					{
						requestPublishPermissions(session);
					}
				}, R.string.cancel, null);
		return;
	}

	editor.putBoolean(KlyphPreferences.PREFERENCE_NOTIFICATIONS, true);
	editor.commit();
	cpref.setChecked(true);

	startOrStopNotificationsServices();

	if (sharedPreferences.getBoolean(KlyphPreferences.PREFERENCE_NOTIFICATIONS_BIRTHDAY, false) == true)
		KlyphService.startBirthdayService();
}
 

/**
 * Closes the current session as well as clearing the token cache.
 */
protected final void closeSessionAndClearTokenInformation() {
    if (sessionTracker != null) {
        Session currentSession = sessionTracker.getOpenSession();
        if (currentSession != null) {
            currentSession.closeAndClearTokenInformation();
        }
    }
}
 

/**
 * Stop tracking the Session and remove any callbacks attached
 * to those sessions.
 */
public void stopTracking() {
    if (!isTracking) {
        return;
    }
    Session session = getSession();
    if (session != null) {
        session.removeCallback(callback);
    }
    broadcastManager.unregisterReceiver(receiver);
    isTracking = false;
}
 

private void onSessionStateChange(Session session, SessionState state, Exception exception)
{
    if(exception != null)
    {
        // Handle exception here.
        Log.v("Facebook CALLBACK", "Facebook login error " + exception);
        return;
    }
    if (state != null && state.isOpened()) {

        if (session.isPermissionGranted(PERMISSION))
        {
            if (mPendingAction)
            {
                // Session ready to make requests.
                postImageToFacebook();
                mPendingAction = false;
            }
        }
        else
        {
            // Get the permissions if we don't have them.
            session.requestNewPublishPermissions(new Session.NewPermissionsRequest(this, PERMISSION));
        }
    }
    else if (state.isClosed())
    {
        // Session logged out.
        return;
    }
}
 

/**
 * Gets the current Session.
 * 
 * @return the current Session object.
 */
protected final Session getSession() {
    if (sessionTracker != null) {
        return sessionTracker.getSession();
    }
    return null;
}
 

/**
 * Closes the current session as well as clearing the token cache.
 */
protected final void closeSessionAndClearTokenInformation() {
    if (sessionTracker != null) {
        Session currentSession = sessionTracker.getOpenSession();
        if (currentSession != null) {
            currentSession.closeAndClearTokenInformation();
        }
    }
}
 

/**
 * Gets the date at which the current session will expire or null if no session 
 * has been created.
 * 
 * @return the date at which the current session will expire
 */
protected final Date getExpirationDate() {
    if (sessionTracker != null) {
        Session currentSession = sessionTracker.getOpenSession();
        return (currentSession != null) ? currentSession.getExpirationDate() : null;
    }
    return null;
}