Collapse all group except selected group in expandable listview android

Question

I\'m developing android application using expandable list view. Actually what I need is, I\'m listing group, which contains child.

If I select an unexpandable group

Answer 1

@Override
    public void onGroupExpanded(int groupPosition){
        //collapse the old expanded group, if not the same
        //as new group to expand
        if(groupPosition != lastExpandedGroupPosition){
            listView.collapseGroup(lastExpandedGroupPosition);
        }

        super.onGroupExpanded(groupPosition);           
        lastExpandedGroupPosition = groupPosition;
    }