title: newly created folder does not show up in Windows explorer
body: <p>I am creating my app folder /Android/data/com.mycompany.myapp. It is empty at first. However it is not visible in Windows explorer. Doing this solves it:</p>
  
  <pre><code>sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + Environment.getExternalStorageDirectory())));
  </code></pre>
  
  <p>Unfortunately this is no longer supported in API 19 (4.4). What is the alternative?</p>
  
  <p>For Intent.ACTION_MEDIA_SCANNER_SCAN_FILE I need to specify a file, not a folder. The same is true for MediaScannerConnection.scanFile...</p>