Android. update ExpandableListView

Answer 1

expListAdapter.notifyDataSetChanged(); - to notify adapter that data has changed :

For onclick :

OnChildClickListener myOnChildClick = new OnChildClickListener() {

        @Override
        public boolean onChildClick(ExpandableListView arg0, View arg1, int arg2, int arg3,
                long arg4) {
            // TODO Auto-generated method stub
            return false;
        }

    };

and setOnChildClickListener(myOnChildClick); in onCreate

Answer 2

To update cells for expanableListView you should use List<ArrayList<HashMap<Object, Object>>> variable during creating adapter. It doesn't work for me first time, because I use internal method, which created new list. Maybe this fact is the cause of problem. As Alex said, you need call adapter.notifyDataSetChanged() to make the changes applied to the ExpandableList. Thanks