我有一个Android应用程序，其内容显示在屏幕上的＆＃34;网格＆＃34;。
然而，当添加动态内容时，它会将其放在一个不是我想要的长行中。
我在此链接（http://corochann.com/verticalgridfragment-android-tv-application-hands-on-tutorial-19-718.html）中尝试了该教程，但我无法使其正常工作。
我需要帮助了解如何使VerticalGrid viw功能正常工作（我真的想让它工作并学习它以便我可以提高我的Android技能）。
我从MainFragment中包含了我的代码，因为这基本上是它的布局。
public class MainFragment extends BrowseFragment {
private static final String TAG = MainFragment.class.getSimpleName();
private ArrayObjectAdapter mRowsAdapter;
private static final int GRID_ITEM_WIDTH = 300;
private static final int GRID_ITEM_HEIGHT = 200;
private static PicassoBackgroundManager picassoBackgroundManager = null;
@Override
public void onActivityCreated(Bundle savedInstanceState) {
Log.i(TAG, "onActivityCreated");
super.onActivityCreated(savedInstanceState);
setupUIElements();
loadRows();
setupEventListeners();
picassoBackgroundManager = new PicassoBackgroundManager(getActivity());
picassoBackgroundManager.updateBackgroundWithDelay("http://darutawheed.co.uk/wp-content/uploads/2014/04/masjid-an-nabawi-the-prophets-mosque-madina.jpg");
}
private void setupEventListeners() {
setOnItemViewSelectedListener(new ItemViewSelectedListener());
setOnItemViewClickedListener(new ItemViewClickedListener());
}
public final class ItemViewClickedListener implements OnItemViewClickedListener {
@Override
public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item,
RowPresenter.ViewHolder rowViewHolder, Row row) {
// each time the item is clicked, code inside here will be executed.
if (item instanceof Movie) {
Movie movie = (Movie) item;
Log.d(TAG, "Item: " + item.toString());
Intent intent = new Intent(getActivity(), DetailsActivity.class);
intent.putExtra(DetailsActivity.MOVIE, movie);
getActivity().startActivity(intent);
}
else if (item instanceof Radio) {
Radio radio = (Radio) item;
Log.d(TAG, "Item: " + item.toString());
Intent intent = new Intent(getActivity(), DetailsActivity.class);
intent.putExtra(DetailsActivity.RADIO, radio);
getActivity().startActivity(intent);
}
}
}
public final class ItemViewSelectedListener implements OnItemViewSelectedListener {
@Override
public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item,
RowPresenter.ViewHolder rowViewHolder, Row row) {
// each time the item is selected, code inside here will be executed.
if (item instanceof String) { // GridItemPresenter
picassoBackgroundManager.updateBackgroundWithDelay("http://darutawheed.co.uk/wp-content/uploads/2014/04/masjid-an-nabawi-the-prophets-mosque-madina.jpg");
} else if (item instanceof Movie) { // CardPresenter
picassoBackgroundManager.updateBackgroundWithDelay(((Movie) item).getCardImageUrl());
} else if (item instanceof Radio){
picassoBackgroundManager.updateBackgroundWithDelay(((Radio) item).getCardImageUrl());
}
}
}
private void setupUIElements() {
// setBadgeDrawable(getActivity().getResources().getDrawable(R.drawable.videos_by_google_banner));
setTitle("Sunnah Box TV"); // Badge, when set, takes precedent
// over title
setHeadersState(HEADERS_ENABLED);
setHeadersTransitionOnBackEnabled(true);
// set fastLane (or headers) background color
setBrandColor(getResources().getColor(R.color.fastlane_background));
// set search icon color
setSearchAffordanceColor(getResources().getColor(R.color.search_opaque));
}
private void loadRows() {
mRowsAdapter = new ArrayObjectAdapter(new ListRowPresenter());
/* GridItemPresenter */
HeaderItem gridItemPresenterHeader = new HeaderItem(0, "Channel Categories");
GridItemPresenter mGridPresenter = new GridItemPresenter();
ArrayObjectAdapter gridRowAdapter = new ArrayObjectAdapter(mGridPresenter);
gridRowAdapter.add("Video Lectures");
gridRowAdapter.add("Audio Lectures");
gridRowAdapter.add("Special Broadcasts");
mRowsAdapter.add(new ListRow(gridItemPresenterHeader, gridRowAdapter));
/* CardPresenter */
HeaderItem cardPresenterHeader = new HeaderItem(1, "Video Content");
CardPresenter cardPresenter = new CardPresenter();
ArrayObjectAdapter videoCardRowAdapter = new ArrayObjectAdapter(cardPresenter);
/* CardPresenter */
HeaderItem cardPresenterHeader2 = new HeaderItem(2, "Audio Lectures");
CardPresenter cardPresenter2 = new CardPresenter();
ArrayObjectAdapter audioCardRowAdapter = new ArrayObjectAdapter(cardPresenter2);
ArrayList<Movie> mItems = MovieProvider.getMovieItems();
for (Movie movie : mItems) {
videoCardRowAdapter.add(movie);
}
ArrayList<Radio> rItems = RadioProvider.getRadioItems();
for (Radio radio : rItems) {
audioCardRowAdapter.add(radio);
}
try {
Playlist[] resp = new InformationRetrieverTask().execute("https://xxxxxx.xxxxxx.xxxxx").get();
List<Playlist> playlists = Arrays.asList(resp);
for (Playlist playlist: playlists){
for (Media media: playlist.getMedias()) {
if (media instanceof Audio){
Radio radio = new Radio();
radio.setTitle(media.getTitle());
radio.setStudio(media.getPublicationDate());
radio.setDescription(media.getDescription());
radio.setCardImageUrl("https://masjidtawheed.net/wp-content/uploads/2016/11/masjidlogo1.png");
radio.setRadioUrl(media.getMediaUrl());
audioCardRowAdapter.add(radio);
}else if (media instanceof Video){
Movie movie = new Movie();
movie.setTitle(media.getTitle());
movie.setStudio(media.getPublicationDate());
movie.setDescription(media.getDescription());
movie.setCardImageUrl("http://thoriqussalaf.com/wp-content/uploads/2015/10/logo_Thariqussalaf_OK.jpg");
movie.setVideoUrl(media.getMediaUrl());
movie.setyTubeID(((Video) media).getVideoProvider().getVideoId());
videoCardRowAdapter.add(movie);
}
}
}
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
}
mRowsAdapter.add(new ListRow(cardPresenterHeader, videoCardRowAdapter));
mRowsAdapter.add(new ListRow(cardPresenterHeader2, audioCardRowAdapter));
/* Set */
setAdapter(mRowsAdapter);
}
/**
* from AOSP sample source code
* GridItemPresenter class. Show TextView with item type String.
*/
private class GridItemPresenter extends Presenter {
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent) {
TextView view = new TextView(parent.getContext());
view.setLayoutParams(new ViewGroup.LayoutParams(GRID_ITEM_WIDTH, GRID_ITEM_HEIGHT));
view.setFocusable(true);
view.setFocusableInTouchMode(true);
view.setBackgroundColor(getResources().getColor(R.color.default_background));
view.setTextColor(Color.WHITE);
view.setGravity(Gravity.CENTER);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(ViewHolder viewHolder, Object item) {
((TextView) viewHolder.view).setText((String) item);
}
@Override
public void onUnbindViewHolder(ViewHolder viewHolder) {
}
}
}
感谢。
ironmantis7x
答案 0 :(得分：0)
我会搜索一个解决方法，因为我没有得到回复。