@Override
 public void onPause() {
   super.onPause();
   savePreviouslyCheckedFileDescriptors();
   savePreviousFilter();
   getActivity().unregisterReceiver(broadcastReceiver);
 }
 private void browseFilesButtonClick(byte fileType) {
   if (adapter != null) {
     savePreviouslyCheckedFileDescriptors();
     savePreviousFilter();
     saveListViewVisiblePosition(adapter.getFileType());
     adapter.clear();
   }
   filesBar.clearCheckAll();
   reloadFiles(fileType);
 }