@Override
public int getItemCount() {
    switch (STATE) {
        case BOTH:
            // if both, return 2 additional for header & footerResource
            return list.length + 2;
        case ITEM:
            // if just items, return just the length
            return list.length;
        default:
            // if either or, return 1 additional
            return list.length + 1;
    }
}