public void expand(final int position) {
        long itemId = getItemId(position);
        if (mExpandedIds.contains(itemId)) {
            return;
        }

        toggle(position);
    }
public void expand(final int position) {
        long itemId = getItemId(position);
        if (mExpandedIds.contains(itemId)) {
            return;
        }

        toggle(position);
    }
public void expand ( final int position ) { long itemId = getItemId ( position ) ; if ( mExpandedIds . contains ( itemId ) ) { return ; } toggle ( position ) ; }
Expand the view at given position. Will do nothing if the view is already expanded.

@param position the position to expand.
Expand the view at given position . Will do nothing if the view is already expanded .