@Override
 protected LocalIndexInfo[] doInBackground(LocalIndexInfo... params) {
   LocalIndexHelper helper = new LocalIndexHelper((OsmandApplication) getApplication());
   for (LocalIndexInfo i : params) {
     helper.updateDescription(i);
   }
   return params;
 }
 @Override
 protected List<LocalIndexInfo> doInBackground(Activity... params) {
   LocalIndexHelper helper = new LocalIndexHelper((OsmandApplication) getApplication());
   return helper.getAllLocalIndexData(this);
 }