private boolean doesFileExist() {
Log.d("MobileOrg", "Filename is :" + filename);
assert (resolver != null);
Cursor cursor =
resolver.query(Files.buildFilenameUri(filename), Files.DEFAULT_COLUMNS, null, null, null);
int count = cursor.getCount();
cursor.close();
if (count > 0) return true;
else return false;
}
