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Moved veggieseasons out of experimental (#752)
This commit is contained in:
Tushar Ojha
GitHub
292
veggieseasons/lib/screens/settings.dart
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292
veggieseasons/lib/screens/settings.dart
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// Copyright 2018 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/widgets.dart';
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import 'package:provider/provider.dart';
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import 'package:veggieseasons/data/preferences.dart';
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import 'package:veggieseasons/data/veggie.dart';
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import 'package:veggieseasons/styles.dart';
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import 'package:veggieseasons/widgets/settings_group.dart';
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import 'package:veggieseasons/widgets/settings_item.dart';
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class VeggieCategorySettingsScreen extends StatelessWidget {
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VeggieCategorySettingsScreen({Key key, this.restorationId}) : super(key: key);
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final String restorationId;
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static String show(NavigatorState navigator) {
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return navigator.restorablePush(_routeBuilder);
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}
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static Route<void> _routeBuilder(BuildContext context, Object argument) {
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return CupertinoPageRoute(
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builder: (context) =>
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VeggieCategorySettingsScreen(restorationId: 'category'),
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title: 'Preferred Categories',
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);
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}
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@override
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Widget build(BuildContext context) {
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final model = Provider.of<Preferences>(context);
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final currentPrefs = model.preferredCategories;
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var brightness = CupertinoTheme.brightnessOf(context);
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return RestorationScope(
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restorationId: restorationId,
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child: CupertinoPageScaffold(
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navigationBar: CupertinoNavigationBar(
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middle: Text('Preferred Categories'),
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previousPageTitle: 'Settings',
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),
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backgroundColor: Styles.scaffoldBackground(brightness),
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child: FutureBuilder<Set<VeggieCategory>>(
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future: currentPrefs,
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builder: (context, snapshot) {
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final items = <SettingsItem>[];
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for (final category in VeggieCategory.values) {
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CupertinoSwitch toggle;
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// It's possible that category data hasn't loaded from shared prefs
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// yet, so display it if possible and fall back to disabled switches
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// otherwise.
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if (snapshot.hasData) {
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toggle = CupertinoSwitch(
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value: snapshot.data.contains(category),
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onChanged: (value) {
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if (value) {
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model.addPreferredCategory(category);
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} else {
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model.removePreferredCategory(category);
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}
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},
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);
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} else {
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toggle = CupertinoSwitch(
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value: false,
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onChanged: null,
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);
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}
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items.add(SettingsItem(
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label: veggieCategoryNames[category],
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content: toggle,
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));
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}
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return ListView(
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restorationId: 'list',
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children: [
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SettingsGroup(
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items: items,
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),
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],
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);
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},
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),
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),
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);
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}
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}
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class CalorieSettingsScreen extends StatelessWidget {
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CalorieSettingsScreen({Key key, this.restorationId}) : super(key: key);
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final String restorationId;
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static const max = 1000;
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static const min = 2600;
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static const step = 200;
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static String show(NavigatorState navigator) {
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return navigator.restorablePush(_routeBuilder);
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}
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static Route<void> _routeBuilder(BuildContext context, Object argument) {
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return CupertinoPageRoute<void>(
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builder: (context) => CalorieSettingsScreen(restorationId: 'calorie'),
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title: 'Calorie Target',
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);
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}
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@override
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Widget build(BuildContext context) {
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final model = Provider.of<Preferences>(context);
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var brightness = CupertinoTheme.brightnessOf(context);
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return RestorationScope(
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restorationId: restorationId,
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child: CupertinoPageScaffold(
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navigationBar: CupertinoNavigationBar(
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previousPageTitle: 'Settings',
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),
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backgroundColor: Styles.scaffoldBackground(brightness),
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child: ListView(
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restorationId: 'list',
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children: [
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FutureBuilder<int>(
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future: model.desiredCalories,
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builder: (context, snapshot) {
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final steps = <SettingsItem>[];
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for (var cals = max; cals < min; cals += step) {
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steps.add(
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SettingsItem(
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label: cals.toString(),
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icon: SettingsIcon(
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icon: Styles.checkIcon,
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foregroundColor:
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snapshot.hasData && snapshot.data == cals
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? CupertinoColors.activeBlue
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: Styles.transparentColor,
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backgroundColor: Styles.transparentColor,
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),
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onPress: snapshot.hasData
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? () => model.setDesiredCalories(cals)
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: null,
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),
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);
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}
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return SettingsGroup(
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items: steps,
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header: SettingsGroupHeader('Available calorie levels'),
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footer: SettingsGroupFooter('These are used for serving '
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'calculations'),
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);
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},
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),
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],
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),
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),
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);
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}
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}
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class SettingsScreen extends StatelessWidget {
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SettingsScreen({this.restorationId, Key key}) : super(key: key);
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final String restorationId;
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SettingsItem _buildCaloriesItem(BuildContext context, Preferences prefs) {
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return SettingsItem(
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label: 'Calorie Target',
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icon: SettingsIcon(
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backgroundColor: Styles.iconBlue,
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icon: Styles.calorieIcon,
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),
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content: FutureBuilder<int>(
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future: prefs.desiredCalories,
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builder: (context, snapshot) {
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return Row(
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children: [
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Text(
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snapshot.data?.toString() ?? '',
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style: CupertinoTheme.of(context).textTheme.textStyle,
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),
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SizedBox(width: 8),
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SettingsNavigationIndicator(),
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],
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);
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},
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),
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onPress: () {
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CalorieSettingsScreen.show(Navigator.of(context));
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},
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);
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}
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SettingsItem _buildCategoriesItem(BuildContext context, Preferences prefs) {
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return SettingsItem(
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label: 'Preferred Categories',
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subtitle: 'What types of veggies you prefer!',
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icon: SettingsIcon(
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backgroundColor: Styles.iconGold,
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icon: Styles.preferenceIcon,
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),
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content: SettingsNavigationIndicator(),
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onPress: () {
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VeggieCategorySettingsScreen.show(Navigator.of(context));
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},
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);
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}
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SettingsItem _buildRestoreDefaultsItem(
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BuildContext context, Preferences prefs) {
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return SettingsItem(
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label: 'Restore Defaults',
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icon: SettingsIcon(
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backgroundColor: CupertinoColors.systemRed,
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icon: Styles.resetIcon,
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),
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content: SettingsNavigationIndicator(),
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onPress: () {
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showCupertinoDialog<void>(
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context: context,
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builder: (context) => CupertinoAlertDialog(
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title: Text('Are you sure?'),
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content: Text(
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'Are you sure you want to reset the current settings?',
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),
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actions: <Widget>[
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CupertinoDialogAction(
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isDestructiveAction: true,
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child: Text('Yes'),
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onPressed: () async {
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await prefs.restoreDefaults();
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Navigator.pop(context);
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},
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),
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CupertinoDialogAction(
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isDefaultAction: true,
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child: Text('No'),
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onPressed: () => Navigator.pop(context),
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)
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],
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),
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);
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},
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);
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}
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@override
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Widget build(BuildContext context) {
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final prefs = Provider.of<Preferences>(context);
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return RestorationScope(
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restorationId: restorationId,
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child: CupertinoPageScaffold(
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child: Container(
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color:
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Styles.scaffoldBackground(CupertinoTheme.brightnessOf(context)),
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child: CustomScrollView(
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restorationId: 'list',
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slivers: <Widget>[
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CupertinoSliverNavigationBar(
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largeTitle: Text('Settings'),
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),
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SliverSafeArea(
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top: false,
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sliver: SliverList(
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delegate: SliverChildListDelegate(
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<Widget>[
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SettingsGroup(
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items: [
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_buildCaloriesItem(context, prefs),
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_buildCategoriesItem(context, prefs),
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_buildRestoreDefaultsItem(context, prefs),
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],
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),
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],
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),
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),
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),
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],
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),
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),
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),
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);
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}
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}
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