how to add android expandable list view to mapview..?

In my programme there is a map view and I have extends MapActivity to my class. but now I want to add ExpandableListView to that programme. I am add adapter class that extends BaseExpandableListAdapter as inner class.so how to ad开发者_开发知识库d ExpandableList to programe without extends ExpandableListView. can't add

setListAdapter(mAdapter);
registerForContextMenu(getExpandableListView());

lines without extend ExpandableListView. any other possible way..?

I am did successfully with this example It shows how to make ExpandableListView without extending ExpandableListView class