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Code Issues Releases Wiki Activity

State Restoration support for Veggie Seasons app (#433)

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This commit is contained in:
Michael Goderbauer
2020-11-02 12:19:21 -08:00
committed by GitHub
parent d30bfd59ec
commit ed1503143e
138 changed files with 816 additions and 430 deletions
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79
veggieseasons/lib/screens/list.dart
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@@ -1,79 +0,0 @@
// 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:provider/provider.dart';
import 'package:veggieseasons/data/app_state.dart';
import 'package:veggieseasons/data/preferences.dart';
import 'package:veggieseasons/data/veggie.dart';
import 'package:veggieseasons/styles.dart';
import 'package:veggieseasons/widgets/veggie_card.dart';
class ListScreen extends StatelessWidget {
Widget _generateVeggieRow(Veggie veggie, Preferences prefs,
{bool inSeason = true}) {
return Padding(
padding: EdgeInsets.only(left: 16, right: 16, bottom: 24),
child: FutureBuilder<Set<VeggieCategory>>(
future: prefs.preferredCategories,
builder: (context, snapshot) {
final data = snapshot.data ?? <VeggieCategory>{};
return VeggieCard(veggie, inSeason, data.contains(veggie.category));
}),
);
}
@override
Widget build(BuildContext context) {
return CupertinoTabView(
builder: (context) {
var dateString = DateFormat('MMMM y').format(DateTime.now());
final appState = Provider.of<AppState>(context);
final prefs = Provider.of<Preferences>(context);
final themeData = CupertinoTheme.of(context);
return SafeArea(
bottom: false,
child: ListView.builder(
itemCount: appState.allVeggies.length + 2,
itemBuilder: (context, index) {
if (index == 0) {
return Padding(
padding: const EdgeInsets.fromLTRB(16, 24, 16, 16),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(dateString.toUpperCase(), style: Styles.minorText),
Text('In season today',
style: Styles.headlineText(themeData)),
],
),
);
} else if (index <= appState.availableVeggies.length) {
return _generateVeggieRow(
appState.availableVeggies[index - 1],
prefs,
);
} else if (index <= appState.availableVeggies.length + 1) {
return Padding(
padding: const EdgeInsets.fromLTRB(16, 24, 16, 16),
child: Text('Not in season',
style: Styles.headlineText(themeData)),
);
} else {
var relativeIndex =
index - (appState.availableVeggies.length + 2);
return _generateVeggieRow(
appState.unavailableVeggies[relativeIndex], prefs,
inSeason: false);
}
},
),
);
},
);
}
}