Facebook login shows error message in Android

Question

I am working on Facebook integration on my Android app. It's working fine on some device, but on some device it's not working and give me error message:

Below is the code :

 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 (   exception instanceof FacebookOperationCanceledException ||
                exception instanceof FacebookAuthorizationException) 
        {
                new AlertDialog.Builder(MainWindow.this)
                    .setTitle("cancel")
                    .setMessage("your permission has expired.")
                    .setPositiveButton("ok", null)
                    .show();

        } 

    }




private void onClickFacebookRequest() 
 {
        if (session.isOpened()) 
        {
            sendRequests();

        } else {
            StatusCallback callback = new StatusCallback() {
                public void call(Session session, SessionState state, Exception exception) {
                    if (exception != null) {
                        new AlertDialog.Builder(MainWindow.this)
                                .setTitle(R.string.login_failed_dialog_title)
                                .setMessage(exception.getMessage())
                                .setPositiveButton(R.string.ok_button, null)
                                .show();
                     session = createSession();
                    }
                }
            };
            pendingRequest = true;


            session.openForRead(new Session.OpenRequest(this).setCallback(callback));
        }
    }
 private static final List<String> PERMISSIONS = Arrays.asList("publish_actions");
 private static final String PENDING_PUBLISH_KEY = "pendingPublishReauthorization";

 private void sendRequests() 
 {

     List<String> permissions = quytechApps.getSession().getPermissions();
        if (!isSubsetOf(PERMISSIONS, permissions)) {
            pendingRequest = true;
            Session.NewPermissionsRequest newPermissionsRequest = new Session
                    .NewPermissionsRequest(this, PERMISSIONS);
            session.requestNewPublishPermissions(newPermissionsRequest);
            return;
        }

        showValidationDialog("Please Wait.posting Data on Facebook");
        Bitmap image = BitmapFactory.decodeResource(this.getResources(), R.drawable.splash_screen_final4);

        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        image.compress(Bitmap.CompressFormat.PNG, 100, stream);
        byte[] byteArray = stream.toByteArray();

        Bundle postParams=new Bundle();
        postParams.putByteArray("photo",byteArray);
        postParams.putString("message", "Hi Friends I am using Twinqli Chat App.");

        Request request = new Request(Session.getActiveSession(), "me/photos", postParams, HttpMethod.POST, new Request.Callback()
        {

            @Override
            public void onCompleted(Response response) {
                // TODO Auto-generated method stub
                // showPublishResult(getString(R.string.photo_post), response.getGraphObject(), response.getError());
            if(response.getError() == null)
            {
                Log.d("GraphApiSample.java Sucesses","sucess");
                dismissValidatingDialog();
            }
            else
            {
                dismissValidatingDialog();
                session.closeAndClearTokenInformation();
                //quytechApps.getSession().
                //quytechApps.setSession(null);
//                  Log.d("GraphApiSample.java",""+response.getError().getErrorMessage());
            }

            }

        });
        request.executeAsync();
 }

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

 static final String applicationId = "390611174384274";
 boolean pendingRequest;
 static final String PENDING_REQUEST_BUNDLE_KEY = "com.facebook.samples.graphapi:PendingRequest";

 private Session createSession() 
 {
        Session activeSession = Session.getActiveSession();
        if (activeSession == null || activeSession.getState().isClosed()) 
        {
            activeSession = new Session.Builder(this).setApplicationId(applicationId).build();
            Session.setActiveSession(activeSession);
        }
        return activeSession;
    }

 public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (qsession.onActivityResult(this, requestCode, resultCode, data) &&
                pendingRequest &&
                session.getState().isOpened()) {
            sendRequests();
        }
    }

    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
        super.onRestoreInstanceState(savedInstanceState);

        pendingRequest = savedInstanceState.getBoolean(PENDING_REQUEST_BUNDLE_KEY, pendingRequest);
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);

        outState.putBoolean(PENDING_REQUEST_BUNDLE_KEY, pendingRequest);
    }

Can anyone tell me what's wrong in my code?

Answer 1

This problem normally occurs when the facebook app in your phone is not updated so please update it and then check. It worked for me hope it will work for you also.

EDIT: To check the hash key put this in your onCreate Method

 PackageInfo info;
try {
    info = getPackageManager().getPackageInfo("com.example.yourpackagename", PackageManager.GET_SIGNATURES);
    for (Signature signature : info.signatures) {
        MessageDigest md;
        md = MessageDigest.getInstance("SHA");
        md.update(signature.toByteArray());
        String something = new String(Base64.encode(md.digest(), 0));
        //String something = new String(Base64.encodeBytes(md.digest()));
        Log.e("hash key", something);
    }
} catch (NameNotFoundException e1) {
    Log.e("name not found", e1.toString());
} catch (NoSuchAlgorithmException e) {
    Log.e("no such an algorithm", e.toString());
} catch (Exception e) {
    Log.e("exception", e.toString());
}