title: Android: How to overlay a bitmap and draw over a bitmap?
body: <p>I have three questions actually:</p>
  
  <ol>
  <li>Is it better to draw an image on a bitmap or create a bitmap as resource and then draw it over a bitmap? Performance wise, which one is better?</li>
  <li>If I want to draw something transparent over a bitmap, how would I go about doing it?</li>
  <li>If I want to overlay one transparent bitmap over another, how would I do it?</li>
  </ol>
  
  <p>Sorry for the long list, but in the interest of learning, I would like to explore both the approaches.</p>