title: How do I take advantage of Android's "Clear Cache" button
body: <p>In Android's settings, in the "Manage Applications" activity when clicking on an app, the data is broken down into Application, Data, and cache.  There is also a button to clear the cache.  My app caches audio files and I would like the user to be able to clear the cache using this button.  How do I store them so they get lumped in with the cache and the user can clear them?  I've tried storing files using both of the following techniques:</p>
  
  <pre><code>newFile = File.createTempFile("mcb", ".mp3", context.getCacheDir());
  
  
  newFile = new File(context.getCacheDir(), "mcb.mp3");
  newFile.createNewFile();
  </code></pre>
  
  <p>In both cases, these files are listed as Data and not Cache.</p>