private void drawDropShadow(Canvas canvas) {
        // Can't pass the position to the constructor, so wait with loading the drawable until the drop shadow is
        // actually drawn.
        if (mDropShadowDrawable == null) {
            setDropShadowColor(mDropShadowColor);
        }

        updateDropShadowRect();
        mDropShadowDrawable.setBounds(mDropShadowRect);
        mDropShadowDrawable.draw(canvas);
    }
Attaches the menu drawer to the window.
menudrawer/src/net/simonvt/menudrawer/MenuDrawer.java