Partial View Building - Rebuilds everything

[MAYasin]

PartialbuildsView rebuilds everything

class PartialBuildsView extends StatelessWidget {
  const PartialBuildsView({Key key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return ViewModelBuilder<PartialBuildsViewModel>.nonReactive(
      builder: (context, model, child) {
        print('PartialBuildsView rebuilt');
        return Scaffold(
          body: Column(
            mainAxisSize: MainAxisSize.max,
            mainAxisAlignment: MainAxisAlignment.center,
            children: <Widget>[
              _StringForm(),
              _TitleAndValue(),
            ],
          ),
        );
      },
      viewModelBuilder: () => PartialBuildsViewModel(),
    );
  }
}

class _StringForm extends HookViewModelWidget<PartialBuildsViewModel> {
  _StringForm({Key key}) : super(key: key, reactive: false);

  @override
  Widget buildViewModelWidget(
    BuildContext context,
    PartialBuildsViewModel model,
  ) {
    print('_StringForm rebuilt');
    var text = useTextEditingController();
    return TextField(
      controller: text,
      onChanged: model.updateString,
    );
  }
}

class _TitleAndValue extends ViewModelWidget<PartialBuildsViewModel> {
  const _TitleAndValue({Key key}) : super(key: key, reactive: true);

  @override
  Widget build(
        BuildContext context,
        PartialBuildsViewModel model
    ) {
    print('_TitleAndValue rebuilt');
    return Column(
      children: <Widget>[
        Text(
          model.title ?? '',
          style: TextStyle(fontSize: 40),
        )
      ],
    );
  }
}