loadMoreIfCan method

@override Future<void> loadMoreIfCan()

Implementation

@override
Future<void> loadMoreIfCan() async {
  for (int i = pageSize; --i >= 0;) {
    if (!_iterator.moveNext()) {
      _hasMore = false;
      break;
    }

    _items.add(_iterator.current);
  }
  _loadStatus = LoadStatus.ok;
  pushOutput();
}