gistfile1.txt

        @Override
        public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
            super.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);
            if (view.getChildAt(0) != null) {
                View header = view.getChildAt(0).findViewById(R.id.header);
                if (header != null && header.getVisibility() == View.VISIBLE) {
                    header.setVisibility(View.INVISIBLE);
                }
            }
            if (view.getChildAt(1) != null) {
                View header = view.getChildAt(1).findViewById(R.id.header);
                if (header != null && header.getVisibility() == View.INVISIBLE) {
                    header.setVisibility(View.VISIBLE);
                }
            }
        }