next method

@override Future<void> next()

Load the data on the next page.

If there is no data, load() is executed.

Implementation

@override
Future<void> next() async {
  if (!canNext) {
    return;
  }
  final prevLength = length;
  clear();
  _nextCount = _nextCount + 1;
  await load();
  if (prevLength == length) {
    _nextCount = _nextCount - 1;
  }
}