如何从expandableListView获取子位置

Question

如何从可扩展的List View android获取子位置。

我想从可展开列表视图setSelect中自动获取子位置。

Answer 1

 expListView.setOnChildClickListener(new OnChildClickListener() {

            public boolean onChildClick(ExpandableListView parent, View v,
                    int groupPosition, int childPosition, long id) {
                final String selected = (String) expListAdapter.getChild(
                        groupPosition, childPosition);
                Toast.makeText(getBaseContext(), selected, Toast.LENGTH_LONG)
                        .show();

                return true;
            }
        });

Answer 2

您必须使用适配器的getChild(groupPosition, childPosition)方法来检索child的实例。

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

Toast.makeText(this, (String)((Map<String, String>)
            adapter.getChild(groupPosition, childPosition)).get(childPosition),
                                                  Toast.LENGTH_LONG).show();
return super.onChildClick(parent, v, groupPosition, childPosition, id);
 }