Can we stop a groupview not to show its childList when touched on it (For some specific cases)

In my project, Expandable list view is common for all logins, but in new update, based on role of login user, i want to stop showing children of certain groupviews. I managed to put an "Access Denied" dialog, but I cannot stop, the expansion of groupview or showing child view. Is there a way for that?

I tried to pass role to the adapter of the expandableListAdapter class and write some cases in getChildView like if (groupPosition==1 && role == 1) I inflated an empty layout. This way I cannot prevent expansion, the child view is still being shown but it is empty and on clicking of that, it is throwing null pointer exception.

I found a way for that, I returned the child count for my specific cases 0

@Override
    public int getChildrenCount(int groupPosition) {
        Log.e("getChildrenCount", "getChildrenCount");

        if ((this.listDataChild.get(this.listDataHeader.get(groupPosition)) == null)
                || (roleId.equalsIgnoreCase("2") && groupPosition!=1)
                || (roleId.equalsIgnoreCase("3") && groupPosition!=2)
                || (roleId.equalsIgnoreCase("5") && groupPosition!=4)   )
            return 0;
        else
            return this.listDataChild.get(this.listDataHeader.get(groupPosition)).size();
    }

This worked for me Thanks