title: Android - fast way to get hidden images and folders
body: <p>For getting all images on an device I query the <code>ContentResolver</code> for <code>MediaStore.Images</code>. Now I want to add a option to show hidden files as well like many image apps like QuickPic do it.</p>
  
  <p>Is there a faster way than recursively searching all directories on the phone and check if a .nomedia file is in it and if so, check if I can find some image file in it?</p>
  
  <p>It's not possible through the <code>ContentResolver</code> is it?</p>