//Isso é chamada em um momento do app
private void getFacebookInfos() {

        dismissProgressHelper();

        Session session = new Session(getApplication());
        Session.OpenRequest openRequest = new Session.OpenRequest(this);
        openRequest.setPermissions(Arrays.asList(EMAIL));
        openRequest.setCallback(callback);
        session.openForRead(openRequest);
        Session.setActiveSession(session);

    }


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

        Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data);
        DebugUtil.log("result code: " + resultCode + " request code: " + requestCode);

        if (mProgressHelper.isShowing()) {
            mProgressHelper.dismiss();
        }
//
//        if (resultCode == TagApplication.RESULT_CLOSE_ALL) {
//
//            setResult(TagApplication.RESULT_CLOSE_ALL);
//            finish();
//
//        } else if(resultCode != RESULT_CANCELED) {
//            if(mProgressHelper != null && mProgressHelper.isShowing()) {
//                mProgressHelper.dismiss();
//            }
//            showSingleMessage(getString(R.string.error_login_facebook));
//        } else {
//            Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data);
//            uiHelper.onActivityResult(requestCode, resultCode, data);
//        }
    }