Esempio n. 1
0
/** Fragment that presents the artists list */
public class ArtistListFragment extends AbstractListFragment {
  private static final String TAG = LogUtils.makeLogTag(ArtistListFragment.class);

  public interface OnArtistSelectedListener {
    public void onArtistSelected(int artistId, String artistName);
  }

  // Activity listener
  private OnArtistSelectedListener listenerActivity;

  @Override
  protected String getListSyncType() {
    return LibrarySyncService.SYNC_ALL_MUSIC;
  }

  @Override
  protected AdapterView.OnItemClickListener createOnItemClickListener() {
    return new AdapterView.OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        // Get the artist id from the tag
        ViewHolder tag = (ViewHolder) view.getTag();
        // Notify the activity
        listenerActivity.onArtistSelected(tag.artistId, tag.artistName);
      }
    };
  }

  @Override
  protected CursorAdapter createAdapter() {
    return new ArtistsAdapter(getActivity());
  }

  @Override
  protected CursorLoader createCursorLoader() {
    HostInfo hostInfo = HostManager.getInstance(getActivity()).getHostInfo();
    Uri uri = MediaContract.Artists.buildArtistsListUri(hostInfo != null ? hostInfo.getId() : -1);

    String selection = null;
    String selectionArgs[] = null;
    String searchFilter = getSearchFilter();
    if (!TextUtils.isEmpty(searchFilter)) {
      selection = MediaContract.ArtistsColumns.ARTIST + " LIKE ?";
      selectionArgs = new String[] {"%" + searchFilter + "%"};
    }

    return new CursorLoader(
        getActivity(),
        uri,
        ArtistListQuery.PROJECTION,
        selection,
        selectionArgs,
        ArtistListQuery.SORT);
  }

  @Override
  public void onAttach(Activity activity) {
    super.onAttach(activity);
    try {
      listenerActivity = (OnArtistSelectedListener) activity;
    } catch (ClassCastException e) {
      throw new ClassCastException(
          activity.toString() + " must implement OnArtistSelectedListener");
    }
  }

  @Override
  public void onDetach() {
    super.onDetach();
    listenerActivity = null;
  }

  @Override
  public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    inflater.inflate(R.menu.media_search, menu);
    MenuItem searchItem = menu.findItem(R.id.action_search);
    SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchItem);
    searchView.setOnQueryTextListener(this);
    searchView.setQueryHint(getString(R.string.action_search_artists));
    super.onCreateOptionsMenu(menu, inflater);
  }

  /** Artist list query parameters. */
  private interface ArtistListQuery {
    String[] PROJECTION = {
      BaseColumns._ID,
      MediaContract.Artists.ARTISTID,
      MediaContract.Artists.ARTIST,
      MediaContract.Artists.GENRE,
      MediaContract.Movies.THUMBNAIL,
    };

    String SORT = MediaDatabase.sortCommonTokens(MediaContract.Artists.ARTIST) + " ASC";

    final int ID = 0;
    final int ARTISTID = 1;
    final int ARTIST = 2;
    final int GENRE = 3;
    final int THUMBNAIL = 4;
  }

  private class ArtistsAdapter extends CursorAdapter {

    private HostManager hostManager;
    private int artWidth, artHeight;

    public ArtistsAdapter(Context context) {
      super(context, null, false);
      this.hostManager = HostManager.getInstance(context);

      // Get the art dimensions
      Resources resources = context.getResources();
      artWidth =
          (int)
              (resources.getDimension(R.dimen.artistlist_art_width) / UIUtils.IMAGE_RESIZE_FACTOR);
      artHeight =
          (int)
              (resources.getDimension(R.dimen.artistlist_art_heigth) / UIUtils.IMAGE_RESIZE_FACTOR);
    }

    /** {@inheritDoc} */
    @Override
    public View newView(Context context, final Cursor cursor, ViewGroup parent) {
      final View view =
          LayoutInflater.from(context).inflate(R.layout.grid_item_artist, parent, false);

      // Setup View holder pattern
      ViewHolder viewHolder = new ViewHolder();
      viewHolder.nameView = (TextView) view.findViewById(R.id.name);
      viewHolder.genresView = (TextView) view.findViewById(R.id.genres);
      viewHolder.artView = (ImageView) view.findViewById(R.id.art);

      view.setTag(viewHolder);
      return view;
    }

    /** {@inheritDoc} */
    @Override
    public void bindView(View view, Context context, Cursor cursor) {
      final ViewHolder viewHolder = (ViewHolder) view.getTag();

      // Save the movie id
      viewHolder.artistId = cursor.getInt(ArtistListQuery.ARTISTID);
      viewHolder.artistName = cursor.getString(ArtistListQuery.ARTIST);

      viewHolder.nameView.setText(viewHolder.artistName);
      viewHolder.genresView.setText(cursor.getString(ArtistListQuery.GENRE));

      String thumbnail = cursor.getString(ArtistListQuery.THUMBNAIL);
      UIUtils.loadImageWithCharacterAvatar(
          context,
          hostManager,
          thumbnail,
          viewHolder.artistName,
          viewHolder.artView,
          artWidth,
          artHeight);

      // For the popupmenu
      ImageView contextMenu = (ImageView) view.findViewById(R.id.list_context_menu);
      contextMenu.setTag(viewHolder);
      contextMenu.setOnClickListener(artistlistItemMenuClickListener);
    }
  }

  /** View holder pattern */
  private static class ViewHolder {
    TextView nameView;
    TextView genresView;
    ImageView artView;

    int artistId;
    String artistName;
  }

  private View.OnClickListener artistlistItemMenuClickListener =
      new View.OnClickListener() {
        @Override
        public void onClick(final View v) {
          final ViewHolder viewHolder = (ViewHolder) v.getTag();

          final PlaylistType.Item playListItem = new PlaylistType.Item();
          playListItem.artistid = viewHolder.artistId;

          final PopupMenu popupMenu = new PopupMenu(getActivity(), v);
          popupMenu.getMenuInflater().inflate(R.menu.musiclist_item, popupMenu.getMenu());
          popupMenu.setOnMenuItemClickListener(
              new PopupMenu.OnMenuItemClickListener() {
                @Override
                public boolean onMenuItemClick(MenuItem item) {
                  switch (item.getItemId()) {
                    case R.id.action_play:
                      MediaPlayerUtils.play(ArtistListFragment.this, playListItem);
                      return true;
                    case R.id.action_queue:
                      MediaPlayerUtils.queueAudio(ArtistListFragment.this, playListItem);
                      return true;
                  }
                  return false;
                }
              });
          popupMenu.show();
        }
      };
}