Merge "Log NPE in QSAnimator" into tm-dev

    private void addNonFirstPageAnimators(int page) {

        Pair<HeightExpansionAnimator, TouchAnimator> pair = createSecondaryPageAnimators(page);

        if (pair != null) {

            // pair is null in one of two cases:

            // * mPagedTileLayout is null, meaning we are still setting up.

            // * the page has no tiles

            // In either case, don't add the animators to the map.

            mNonFirstPageQSAnimators.put(page, pair);

        }

    }

    @Override

    public void onPageChanged(boolean isFirst, int currentPage) {

        SideLabelTileLayout qqsLayout = (SideLabelTileLayout) mQuickQsPanel.getTileLayout();

        View view = mQs.getView();

        List<String> specs = mPagedLayout.getSpecsForPage(page);

        if (specs.isEmpty()) {

            // specs should not be empty in a valid secondary page, as we scrolled to it.

            // We may crash later on because there's a null animator.

            specs = mQsPanelController.getHost().mTileSpecs;

            Log.e(TAG, "Trying to create animators for empty page " + page + ". Tiles: " + specs);

            // return null;

        }

        int row = -1;

        int lastTileTop = -1;