title: Reading association extras
body: <p>This works for if I open a zip file using ES File Explorer but results a NullPointerException if I try to open the zip file using Opera Mobile.</p>
  
  <pre><code>Bundle extras = getIntent().getExtras();
  Log.v(TAG, "file: " + extras.getString("archive_file_name"));
  </code></pre>
  
  <p>Can I get the file path reliably from external intent?</p>