render method

@override Widget render(FormGroup element, BuildContext context, FormElementEventDispatcherFunction dispatcher, FormElementRendererFunction<FormElement> renderer,)

Implementation

@override
Widget render(
    model.FormGroup element,
    BuildContext context,
    FormElementEventDispatcherFunction dispatcher,
    FormElementRendererFunction renderer) {
  return LazyStreamBuilder(
    streamFactory: () => MergeStream([
      element.childrenChanged,
      ...element.children
          .whereType<FormElement>()
          .map((child) => child.isVisibleChanged),
      element.nameChanged,
    ]),
    builder: (context, _) {
      List<Widget> childrenWidgets = [
        Padding(
          padding: const EdgeInsets.all(8.0),
          child: Text(
            element.name,
            style: TextStyle(color: Colors.grey),
          ),
        )
      ];
      childrenWidgets.addAll(
        element.children
            .whereType<FormElement>()
            .where((f) => f.isVisible)
            .map(
              (child) => renderer(child, context),
            ),
      );
      return Column(children: childrenWidgets);
    },
  );
}