buildSliverScaffold method

@protected Widget buildSliverScaffold(BuildParameters params)

Implementation

@protected
Widget buildSliverScaffold(BuildParameters params) {
  final props = params.spec.props;
  final widgets = params.spec.widgets;

  List<Widget>? persistentFooterButtons;
  if (widgets["persistentFooterButtons"] != null) {
    persistentFooterButtons = <Widget>[];
    for (Map childSpec in widgets["persistentFooterButtons"] as List<Map>) {
      persistentFooterButtons.add(builder.buildWidget(
          params.context, childSpec, params.state, params.parentContext));
    }
  }

  final appBar = builder.tryBuildWidget(
      params.context, widgets["appBar"], params.state, params.parentContext);
  final bottomSheet = builder.tryBuildWidget(params.context,
      widgets["bottomSheet"], params.state, params.parentContext);
  final bottomNavigationBar = builder.tryBuildWidget(params.context,
      widgets["bottomNavigationBar"], params.state, params.parentContext);
  final floatingActionButton = builder.tryBuildWidget(params.context,
      widgets["floatingActionButton"], params.state, params.parentContext);
  final drawer = builder.tryBuildWidget(
      params.context, widgets["drawer"], params.state, params.parentContext);

  final children = <Widget>[];
  if (params.widgets["children"] != null) {
    for (Map childSpec in params.widgets["children"] as List<Map>) {
      children.add(builder.buildWidget(
          params.context, childSpec, params.state, params.parentContext));
    }
  }

  final scrollView = CustomScrollView(
    key: properties.getKey(params.id),
    reverse: parseBool(params.props["reverse"]),
    shrinkWrap: parseBool(params.props["shrinkWrap"]),
    scrollDirection: params.buildProp("scrollDirection") ?? Axis.vertical,
    keyboardDismissBehavior: params.buildProp("keyboardDismissBehavior") ??
        ScrollViewKeyboardDismissBehavior.manual,
    slivers: [
      if (appBar != null) appBar,
      SliverList(delegate: SliverChildListDelegate(children)),
    ],
  );

  Widget widget = Scaffold(
    key: properties.getKey(params.id),
    backgroundColor: tryParseColor(props["backgroundColor"]),
    body: scrollView,
    bottomSheet: bottomSheet,
    bottomNavigationBar: bottomNavigationBar,
    floatingActionButton: floatingActionButton,
    persistentFooterButtons: persistentFooterButtons,
    drawer: drawer,
    extendBody: parseBool(props["extendBody"]),
    extendBodyBehindAppBar: parseBool(props["extendBodyBehindAppBar"]),
    floatingActionButtonLocation:
        params.buildProp("floatingActionButtonLocation"),
  );

  if (props["tabController"] != null) {
    widget = DefaultTabController(
      length: parseInt(props["tabController"]["length"]),
      initialIndex: parseInt(props["tabController"]["initialIndex"]),
      child: widget,
    );
  }

  return widget;
}