title: What does the filter parameter to createScaledBitmap do?
body: <p>The declaration of <code>android.graphics.Bitmap.createScaledBitmap</code> is</p>
  
  <pre><code>public static Bitmap createScaledBitmap
    (Bitmap src, int dstWidth, int dstHeight, boolean filter)
  </code></pre>
  
  <p>However, the documentation doesn't explain any of the parameters.  All of them are pretty obvious except for <code>boolean filter</code>.  Does anyone know what it does?</p>