android - 结合上下文 ActionBar 和 ExpandableListView

Question

由于 android UI 指南，我尝试ActionBar为ExpandableListView在SherlockFragment. 我找不到解决方案来让它运行。

我使用的最后一个教程是这个，但它不适用于ListView.

有没有办法让这种组合发挥作用？

这是 SherlockFragment 的代码：

public class ResultFragment extends SherlockFragment implements OnGroupClickListener {

    private ExpandableListView mExpandableListView;
    private ResultExpandableAdapter mResultExpandableAdapter;

    private ActionMode mActionMode;


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View fragmentView = inflater.inflate(R.layout.fragment_result, container,   false);

        mResultExpandableAdapter = new ResultExpandableAdapter(getSherlockActivity());

        mExpandableListView = (ExpandableListView) fragmentView.findViewById(R.id.fragment_result_expandableListView);
        mExpandableListView.setAdapter(mResultExpandableAdapter);
        mExpandableListView.setChoiceMode(ExpandableListView.CHOICE_MODE_MULTIPLE);
        mExpandableListView.setOnGroupClickListener(this);

        return fragmentView;
    }

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        super.onCreateOptionsMenu(menu, inflater);

        inflater.inflate(R.menu.result_fragment, menu);
    }


    @Override
    public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) {

        SparseBooleanArray checked = mExpandableListView.getCheckedItemPositions();

        boolean hasCheckedElement = false;

        for (int i = 0 ; i < checked.size() && ! hasCheckedElement; ++i) {
            hasCheckedElement = checked.valueAt(i);
        }

        if (hasCheckedElement) {
            if (mActionMode == null) {
                mActionMode = getSherlockActivity().startActionMode(new ModeCallback());
            }
        } else {
            if (mActionMode != null) {
                mActionMode.finish();
            }
        }
        return false;
    }

    private final class ModeCallback implements ActionMode.Callback {
        @Override
        public boolean onCreateActionMode(ActionMode mode, Menu menu) {
            MenuInflater inflater = mode.getMenuInflater();
            inflater.inflate(R.menu.result_fragment_context, menu);
            return true;
        }

        @Override
        public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
            return false;
        }

        @Override
        public void onDestroyActionMode(ActionMode mode) {
            for (int i = 0; i < mResultExpandableAdapter.getGroupCount(); ++i) {
                mExpandableListView.setItemChecked(i, false);
            }
            if (mode == mActionMode) {
                mActionMode = null;
            }
        }

        @Override
        public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
            long[] selected = mExpandableListView.getCheckedItemIds();
            if (selected.length > 0) {
                for (long id: selected) {
                    // Do something with the selected item
                }
            }
            mode.finish();
            return true;
        }
    }

}