samples/veggieseasons/lib/screens/list.dart

// Copyright 2018 The Flutter team. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:flutter/cupertino.dart';
import 'package:flutter/widgets.dart';
import 'package:intl/intl.dart';
import 'package:scoped_model/scoped_model.dart';
import 'package:veggieseasons/data/model.dart';
import 'package:veggieseasons/data/veggie.dart';
import 'package:veggieseasons/styles.dart';
import 'package:veggieseasons/widgets/veggie_headline.dart';

class ListScreen extends StatelessWidget {
  List<Widget> _generateVeggieRows(List<Veggie> veggies) {
    final cards = new List<Widget>();

    for (Veggie veggie in veggies) {
      cards.add(Padding(
        padding: EdgeInsets.only(left: 16.0, right: 16.0, bottom: 24.0),
        child: VeggieHeadline(veggie),
      ));
    }

    return cards;
  }

  @override
  Widget build(BuildContext context) {
    String dateString = DateFormat.yMMMMd("en_US").format(DateTime.now());
    final model = ScopedModel.of<AppState>(context, rebuildOnChange: true);

    final rows = <Widget>[];

    rows.add(
      Padding(
        padding: const EdgeInsets.fromLTRB(16.0, 24.0, 16.0, 16.0),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Text(dateString.toUpperCase(), style: Styles.minorText),
            Text('In season today', style: Styles.headlineText),
          ],
        ),
      ),
    );

    rows.addAll(_generateVeggieRows(model.availableVeggies));

    rows.add(
      Padding(
        padding: const EdgeInsets.fromLTRB(16.0, 24.0, 16.0, 16.0),
        child: Text('Not in season', style: Styles.headlineText),
      ),
    );

    rows.addAll(_generateVeggieRows(model.unavailableVeggies));

    return CupertinoTabView(
      builder: (context) => DecoratedBox(
            decoration: BoxDecoration(color: Color(0xffffffff)),
            child: ListView(
              children: rows,
            ),
          ),
    );
  }
}