Show only one child of expandable list at a time

[iosandroiddev]

Hi,

I am trying to Show only one child of expandable list at a time.
I have written this code for that.. for the visible items it's working fine. But, if i expand second row and again expand 48th row. its crashing.

Please check:

private static int prev = -1;
listView.setOnGroupExpandListener(new OnGroupExpandListener() {

        @Override
        public void onGroupExpand(int groupPosition) {
            if (prev != groupPosition) {
                listView.collapseGroupWithAnimation(prev);
            }

            prev = groupPosition;
        }
    });

[idunnololz]

Fixed in #10.