title: How to make a  drawable  hidden when calling Drawable.draw(canvas)?
body: <p>I find that calling <code>Drawable.setVisible(false, false)</code> has no effect.  </p>
  
  <p>Does calling <code>Drawable.setVisible(false, false)</code> cause a drawable to be hidden the next time <code>Drawable.draw(canvas)</code> is called?</p>