title: Draw SurfaceView from layout xml
body: <p>for a SurfaceView which I made it from code, I could override <code>onDraw()</code>.<br>
  But how to override that <code>onDraw()</code> from a <code>SurfaceView</code> which is defined in a layout XML? is there any way to access the <code>draw()</code> method?</p>