Flutter development series - part4

loyalty_list_page.dart

class LoyaltyListPage extends StatefulWidget {
  LoyaltyListPage({Key key}) : super(key: key);

  @override
  _LoyaltyListPageState createState() => _LoyaltyListPageState();
}

class _LoyaltyListPageState extends State<LoyaltyListPage> {

  @override
  void initState() {
    super.initState();
    BlocProvider.of<LoyaltyBloc>(context).add(Fetch());
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: Text("Loyalty"),
        ),
        body: Container(
          child:
              BlocBuilder<LoyaltyBloc, LoyaltyState>(builder: (_, state) {
            switch (state.runtimeType) {
              case LoyaltyEmpty:
                return _EmptyWidget();
                break;
              case LoyaltyLoading:
                return CircularProgressIndicator();
                break;
              case LoyaltyError:
                return _ErrorWidget();
                break;
              case LoyaltyLoaded:
                return _LoadedWidget(loyaltyCards: state.props.first);
                break;
              default:
                return _ErrorWidget();
            }
          }),
        ));
  }
}