WidgetRecorder class abstract

A recorder for benchmarking interactions with the framework by creating widgets.

To implement a benchmark, extend this class and implement createWidget.

Example:

class BenchListView extends WidgetRecorder {
  BenchListView() : super(name: benchmarkName);

  static const String benchmarkName = 'bench_list_view';

  @override
  Widget createWidget() {
    return Directionality(
      textDirection: TextDirection.ltr,
      child: _TestListViewWidget(),
    );
  }
}

class _TestListViewWidget extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return _TestListViewWidgetState();
  }
}

class _TestListViewWidgetState extends State<_TestListViewWidget> {
  ScrollController scrollController;

  @override
  void initState() {
    super.initState();
    scrollController = ScrollController();
    Timer.run(() async {
      bool forward = true;
      while (true) {
        await scrollController.animateTo(
          forward ? 300 : 0,
          curve: Curves.linear,
          duration: const Duration(seconds: 1),
        );
        forward = !forward;
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      controller: scrollController,
      itemCount: 10000,
      itemBuilder: (BuildContext context, int index) {
        return Text('Item #$index');
      },
    );
  }
}