title: Drawing rotated bitmap with anti alias
body: <p>I tried to paint a rotated bitmap with anti alias turned on, but it still has alias and it's not smooth, any help?</p>
  
  <p>I did as following:</p>
  
  <pre><code>final Paint p = new Paint(Paint.ANTI_ALIAS_FLAG);
  p.setAntiAlias(true);
  canvas.rotate(-mValues[0]);
  canvas.drawBitmap(compass, -compass.getWidth()/2,-compass.getHeight()/2,p);
  </code></pre>