getWidget method Null safety

Widget getWidget(
  1. String? componentId,
  2. AppModel app
)

Implementation

static Widget getWidget(String? componentId, AppModel app) {
  if (componentId == 'booklets') {
    return BookletListWidget(app: app);
  }
  if (componentId == 'decoratedContents') {
    return DecoratedContentListWidget(app: app);
  }
  if (componentId == 'dividers') {
    return DividerListWidget(app: app);
  }
  if (componentId == 'documents') {
    return DocumentListWidget(app: app);
  }
  if (componentId == 'dynamicWidgets') {
    return DynamicWidgetListWidget(app: app);
  }
  if (componentId == 'faders') {
    return FaderListWidget(app: app);
  }
  if (componentId == 'grids') {
    return GridListWidget(app: app);
  }
  if (componentId == 'presentations') {
    return PresentationListWidget(app: app);
  }
  if (componentId == 'simpleImages') {
    return SimpleImageListWidget(app: app);
  }
  if (componentId == 'simpleTexts') {
    return SimpleTextListWidget(app: app);
  }
  if (componentId == 'tutorials') {
    return TutorialListWidget(app: app);
  }
  return Container();
}