/** @return The list of file/subfolder types within the current directory. */
 public ArrayList<Integer> getTypesList() {
   if (mAdapterData != null) return mAdapterData.getTypesList();
   else return new ArrayList<Integer>();
 }
 /** @return The list of file/subfolder names within the current directory. */
 public ArrayList<String> getNamesList() {
   if (mAdapterData != null) return mAdapterData.getNamesList();
   else return new ArrayList<String>();
 }