使用BaseCardView和它的子類(lèi)顯示與媒體項(xiàng)相關(guān)的數(shù)據(jù)蝗拿。使用ImageCardView顯示顯示圖片和標(biāo)題挖滤。

創(chuàng)建一個(gè)Card Presenter

Presenter根據(jù)需求生成視圖并將數(shù)據(jù)對(duì)象與之綁定。
如下：

@Override
public void onLoadFinished(Loader<HashMap<String, List<Movie>>> arg0,
                       HashMap<String, List<Movie>> data) {

    mRowsAdapter = new ArrayObjectAdapter(new ListRowPresenter());
    CardPresenter cardPresenter = new CardPresenter();

    int i = 0;

    for (Map.Entry<String, List<Movie>> entry : data.entrySet()) {
        ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(cardPresenter);
        List<Movie> list = entry.getValue();

        for (int j = 0; j < list.size(); j++) {
            listRowAdapter.add(list.get(j));
        }
        HeaderItem header = new HeaderItem(i, entry.getKey(), null);
        i++;
        mRowsAdapter.add(new ListRow(header, listRowAdapter));
    }

    HeaderItem gridHeader = new HeaderItem(i, getString(R.string.more_samples),null);

    GridItemPresenter gridPresenter = new GridItemPresenter();
    ArrayObjectAdapter gridRowAdapter = new ArrayObjectAdapter(gridPresenter);
    gridRowAdapter.add(getString(R.string.grid_view));
    gridRowAdapter.add(getString(R.string.error_fragment));
    gridRowAdapter.add(getString(R.string.personal_settings));
    mRowsAdapter.add(new ListRow(gridHeader, gridRowAdapter));

    setAdapter(mRowsAdapter);
    updateRecommendations();
}

注：每一個(gè)presenter只能創(chuàng)建一種視圖類(lèi)型耕肩，如果有多種不同視圖類(lèi)型就需要?jiǎng)?chuàng)建多種presenter那槽。
創(chuàng)建Presenter需要實(shí)現(xiàn)onCreatViewHolder()方法：

@Override
public class CardPresenter extends Presenter {

    private Context mContext;
    private static int CARD_WIDTH = 313;
    private static int CARD_HEIGHT = 176;
    private Drawable mDefaultCardImage;

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent) {
        mContext = parent.getContext();
        mDefaultCardImage = mContext.getResources().getDrawable(R.drawable.movie);

...

如果卡片選中，你可以做各種操作鳞芙，默認(rèn)放大：

...
ImageCardView cardView = new ImageCardView(mContext) {
    @Override
    public void setSelected(boolean selected) {
        int selected_background = mContext.getResources().getColor(R.color.detail_background);
        int default_background = mContext.getResources().getColor(R.color.default_background);
        int color = selected ? selected_background : default_background;
        findViewById(R.id.info_field).setBackgroundColor(color);
        super.setSelected(selected);
    }
};
...

為了實(shí)現(xiàn)遙控操作需要設(shè)置 setFocusable(true)，setFocusableInTouchMode(true)：

...
cardView.setFocusable(true);
cardView.setFocusableInTouchMode(true);
return new ViewHolder(cardView);