我有一个片段:
public class FilmFragment extends BrowseFragment implements LoaderManager.LoaderCallbacks<Object>
在 BrowseFragment 中,我添加了几行项目:
private void loadRubricsFilms(List<Rubric> mRubrics, List<Film> mFilms) {
int j = 0;
for (Rubric mRubric : mRubrics) {
ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(mCardPresenter);
for (Film mFilm : mFilms) {
if (mFilm.getRubric() == mRubric.getId()) {
listRowAdapter.add(mFilm);
}
}
HeaderItem header = new HeaderItem(j++, mRubric.getTitle());
mRowsAdapter.add(new ListRow(header, listRowAdapter));
}
setAdapter(mRowsAdapter);
}
我安装了 OnItemViewSelectedListener 监听器:
private final class ItemViewSelectedListener implements OnItemViewSelectedListener {
@Override
public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item,
RowPresenter.ViewHolder rowViewHolder, Row row) {
}
}
setOnItemViewSelectedListener(new ItemViewSelectedListener());
覆盖方法 onItemSelected :
@Override
public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item,
RowPresenter.ViewHolder rowViewHolder, Row row) {
}
我需要检测何时选择了行中的最后一项。我该如何确定?
答案 0 :(得分:5)
您可以从Row row
,Object item
以及ArrayObjectAdapter
上Row
获取所需的所有信息。onItemSelected(...)
事件。
类似的东西:
final ListRow listRow = (ListRow) row;
final ArrayObjectAdapter currentRowAdapter = listRow.getAdapter();
int selectedIndex = currentRowAdapter.indexOf(item);
if (selectedIndex != -1 && (currentRowAdapter.size() - 1) == selectedIndex ) {
// The last item was selected
}