private void setupUi()

in LeanbackShowcase/app/src/main/java/androidx/leanback/leanbackshowcase/app/details/DetailViewExampleFragment.java [75:163]
66 lines of code
5 McCabe index (conditional complexity)

    private void setupUi() {
        // Load the card we want to display from a JSON resource. This JSON data could come from
        // anywhere in a real world app, e.g. a server.
        String json = Utils
                .inputStreamToString(getResources().openRawResource(R.raw.detail_example));
        DetailedCard data = new Gson().fromJson(json, DetailedCard.class);

        // Setup fragment
        setTitle(getString(R.string.detail_view_title));

        FullWidthDetailsOverviewRowPresenter rowPresenter = new FullWidthDetailsOverviewRowPresenter(
                new DetailsDescriptionPresenter(getActivity())) {

            @Override
            protected RowPresenter.ViewHolder createRowViewHolder(ViewGroup parent) {
                // Customize Actionbar and Content by using custom colors.
                RowPresenter.ViewHolder viewHolder = super.createRowViewHolder(parent);

                View actionsView = viewHolder.view.
                        findViewById(R.id.details_overview_actions_background);
                actionsView.setBackgroundColor(getActivity().getResources().
                        getColor(R.color.detail_view_actionbar_background));

                View detailsView = viewHolder.view.findViewById(R.id.details_frame);
                detailsView.setBackgroundColor(
                        getResources().getColor(R.color.detail_view_background));
                return viewHolder;
            }
        };

        FullWidthDetailsOverviewSharedElementHelper mHelper = new FullWidthDetailsOverviewSharedElementHelper();
        mHelper.setSharedElementEnterTransition(getActivity(), TRANSITION_NAME);
        rowPresenter.setListener(mHelper);
        rowPresenter.setParticipatingEntranceTransition(false);
        prepareEntranceTransition();

        ListRowPresenter shadowDisabledRowPresenter = new ListRowPresenter();
        shadowDisabledRowPresenter.setShadowEnabled(false);

        // Setup PresenterSelector to distinguish between the different rows.
        ClassPresenterSelector rowPresenterSelector = new ClassPresenterSelector();
        rowPresenterSelector.addClassPresenter(DetailsOverviewRow.class, rowPresenter);
        rowPresenterSelector.addClassPresenter(CardListRow.class, shadowDisabledRowPresenter);
        rowPresenterSelector.addClassPresenter(ListRow.class, new ListRowPresenter());
        mRowsAdapter = new ArrayObjectAdapter(rowPresenterSelector);

        // Setup action and detail row.
        DetailsOverviewRow detailsOverview = new DetailsOverviewRow(data);
        int imageResId = data.getLocalImageResourceId(getActivity());

        Bundle extras = getActivity().getIntent().getExtras();
        if (extras != null && extras.containsKey(EXTRA_CARD)) {
            imageResId = extras.getInt(EXTRA_CARD, imageResId);
        }
        detailsOverview.setImageDrawable(getResources().getDrawable(imageResId, null));
        ArrayObjectAdapter actionAdapter = new ArrayObjectAdapter();

        mActionBuy = new Action(ACTION_BUY, getString(R.string.action_buy) + data.getPrice());
        mActionWishList = new Action(ACTION_WISHLIST, getString(R.string.action_wishlist));
        mActionRelated = new Action(ACTION_RELATED, getString(R.string.action_related));

        actionAdapter.add(mActionBuy);
        actionAdapter.add(mActionWishList);
        actionAdapter.add(mActionRelated);
        detailsOverview.setActionsAdapter(actionAdapter);
        mRowsAdapter.add(detailsOverview);

        // Setup related row.
        ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(
                new CardPresenterSelector(getActivity()));
        for (Card characterCard : data.getCharacters()) listRowAdapter.add(characterCard);
        HeaderItem header = new HeaderItem(0, getString(R.string.header_related));
        mRowsAdapter.add(new CardListRow(header, listRowAdapter, null));

        // Setup recommended row.
        listRowAdapter = new ArrayObjectAdapter(new CardPresenterSelector(getActivity()));
        for (Card card : data.getRecommended()) listRowAdapter.add(card);
        header = new HeaderItem(1, getString(R.string.header_recommended));
        mRowsAdapter.add(new ListRow(header, listRowAdapter));

        setAdapter(mRowsAdapter);
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                startEntranceTransition();
            }
        }, 500);
        initializeBackground(data);
    }