Adds the start of a new sample showcasing Cupertino widgets. (#12)

veggieseasons/lib/data/veggie.dart

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+// 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:meta/meta.dart';
+
+enum VeggieCategory {
+  legume,
+  tuber,
+  cruciferous,
+  gourd,
+  leafy,
+  berry,
+  stealthFruit,
+  tropical,
+  fruit,
+  melon,
+  stoneFruit,
+  fern,
+  citrus,
+  root,
+  allium,
+  fungus,
+  vegetable,
+}
+
+enum Season {
+  winter,
+  spring,
+  summer,
+  autumn,
+}
+
+final Map<VeggieCategory, String> veggieCategoryNames = {
+  VeggieCategory.legume: 'Legume',
+  VeggieCategory.tuber: 'Tuber',
+  VeggieCategory.cruciferous: 'Cruciferous',
+  VeggieCategory.gourd: 'Gourd',
+  VeggieCategory.leafy: 'Leafy',
+  VeggieCategory.berry: 'Berry',
+  VeggieCategory.stealthFruit: 'Stealth fruit',
+  VeggieCategory.tropical: 'Tropical',
+  VeggieCategory.fruit: 'Fruit',
+  VeggieCategory.melon: 'Melon',
+  VeggieCategory.stoneFruit: 'Stone fruit',
+  VeggieCategory.fern: 'Technically fern',
+  VeggieCategory.citrus: 'Citrus',
+  VeggieCategory.root: 'Root vegetable',
+  VeggieCategory.allium: 'Allium',
+  VeggieCategory.fungus: 'Fungus',
+  VeggieCategory.vegetable: 'Vegetable',
+};
+
+class Veggie {
+  Veggie({
+    @required this.id,
+    @required this.name,
+    @required this.imageAssetPath,
+    @required this.category,
+    @required this.shortDescription,
+    @required this.accentColor,
+    @required this.seasons,
+    this.isFavorite = false,
+  });
+
+  final int id;
+
+  final String name;
+
+  /// Each veggie has an associated image asset that's used as a background
+  /// image and icon.
+  final String imageAssetPath;
+
+  final VeggieCategory category;
+
+  final String shortDescription;
+
+  /// A color value to use when constructing UI elements to match the image
+  /// found at [imageAssetPath].
+  final int accentColor;
+
+  /// Seasons during which a veggie is harvested.
+  final List<Season> seasons;
+
+  /// Whether or not the veggie has been saved to the user's garden (i.e. marked
+  /// as a favorite).
+  bool isFavorite;
+}

veggieseasons/lib/main.dart

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+// 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/services.dart' show DeviceOrientation, SystemChrome;
+import 'package:veggieseasons/screens/home.dart';
+import 'package:veggieseasons/styles.dart';
+
+void main() {
+  SystemChrome.setPreferredOrientations([
+    DeviceOrientation.portraitUp,
+    DeviceOrientation.portraitDown,
+  ]);
+
+  runApp(
+    CupertinoApp(
+      color: Styles.appBackground,
+      home: HomeScreen(),
+    ),
+  );
+}

veggieseasons/lib/screens/details.dart

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+// 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:veggieseasons/styles.dart';
+
+class DetailsScreen extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return CupertinoPageScaffold(
+      navigationBar: CupertinoNavigationBar(
+        middle: Text('Details'),
+      ),
+      backgroundColor: Styles.scaffoldBackground,
+      child: Center(
+        child: Text('Not yet implemented.'),
+      ),
+    );
+  }
+}

veggieseasons/lib/screens/favorites.dart

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+// 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:veggieseasons/styles.dart';
+
+class FavoritesScreen extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return CupertinoPageScaffold(
+      navigationBar: CupertinoNavigationBar(
+        middle: Text('My Garden'),
+      ),
+      backgroundColor: Styles.scaffoldBackground,
+      child: Center(
+        child: Text('Not yet implemented.'),
+      ),
+    );
+  }
+}

veggieseasons/lib/screens/home.dart

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+// 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:veggieseasons/screens/favorites.dart';
+import 'package:veggieseasons/screens/list.dart';
+import 'package:veggieseasons/screens/search.dart';
+import 'package:veggieseasons/screens/settings.dart';
+
+class HomeScreen extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return CupertinoTabScaffold(
+      tabBar: CupertinoTabBar(items: [
+        BottomNavigationBarItem(
+          icon: Icon(CupertinoIcons.home),
+          title: Text('Home'),
+        ),
+        BottomNavigationBarItem(
+          icon: Icon(CupertinoIcons.book),
+          title: Text('My Garden'),
+        ),
+        BottomNavigationBarItem(
+          icon: Icon(CupertinoIcons.search),
+          title: Text('Search'),
+        ),
+        BottomNavigationBarItem(
+          icon: Icon(CupertinoIcons.settings),
+          title: Text('Settings'),
+        ),
+      ]),
+      tabBuilder: (context, index) {
+        if (index == 0) {
+          return ListScreen();
+        } else if (index == 1) {
+          return FavoritesScreen();
+        } else if (index == 2) {
+          return SearchScreen();
+        } else {
+          return SettingsScreen();
+        }
+      },
+    );
+  }
+}

veggieseasons/lib/screens/list.dart

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+// 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:veggieseasons/styles.dart';
+
+class ListScreen extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return CupertinoPageScaffold(
+      navigationBar: CupertinoNavigationBar(
+        middle: Text('List'),
+      ),
+      backgroundColor: Styles.scaffoldBackground,
+      child: Center(
+        child: Text('Not yet implemented.'),
+      ),
+    );
+  }
+}

veggieseasons/lib/screens/search.dart

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+// 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:veggieseasons/styles.dart';
+
+class SearchScreen extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return CupertinoPageScaffold(
+      navigationBar: CupertinoNavigationBar(
+        middle: Text('Search'),
+      ),
+      backgroundColor: Styles.scaffoldBackground,
+      child: Center(
+        child: Text('Not yet implemented.'),
+      ),
+    );
+  }
+}

veggieseasons/lib/screens/settings.dart

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+// 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:veggieseasons/styles.dart';
+
+class SettingsScreen extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return CupertinoPageScaffold(
+      navigationBar: CupertinoNavigationBar(
+        middle: Text('Settings'),
+      ),
+      backgroundColor: Styles.scaffoldBackground,
+      child: Center(
+        child: Text('Not yet implemented.'),
+      ),
+    );
+  }
+}

veggieseasons/lib/styles.dart

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+// 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/widgets.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:veggieseasons/data/veggie.dart';
+
+abstract class Styles {
+  static const baseTextStyle = TextStyle(
+    color: Color.fromRGBO(10, 10, 8, 1.0),
+    fontFamily: 'NotoSans',
+    fontSize: 16.0,
+    fontStyle: FontStyle.normal,
+    fontWeight: FontWeight.normal,
+  );
+
+  static const headlineText = TextStyle(
+    color: Color.fromRGBO(0, 0, 0, 0.8),
+    fontFamily: 'NotoSans',
+    fontSize: 32.0,
+    fontStyle: FontStyle.normal,
+    fontWeight: FontWeight.bold,
+  );
+
+  static const subheadText = TextStyle(
+    color: Color.fromRGBO(240, 240, 240, 1.0),
+    fontFamily: 'NotoSans',
+    fontSize: 30.0,
+    fontStyle: FontStyle.normal,
+    fontWeight: FontWeight.bold,
+  );
+
+  static const bodyText = TextStyle(
+    color: Color.fromRGBO(240, 240, 240, 1.0),
+    fontFamily: 'NotoSans',
+    fontSize: 14.0,
+    fontStyle: FontStyle.normal,
+    fontWeight: FontWeight.normal,
+  );
+
+  static const minorText = TextStyle(
+    color: Color.fromRGBO(128, 128, 128, 1.0),
+    fontFamily: 'NotoSans',
+    fontSize: 16.0,
+    fontStyle: FontStyle.normal,
+    fontWeight: FontWeight.normal,
+  );
+
+  static const headlineName = TextStyle(
+    color: Color.fromRGBO(0, 0, 0, 0.9),
+    fontFamily: 'NotoSans',
+    fontSize: 24.0,
+    fontStyle: FontStyle.normal,
+    fontWeight: FontWeight.bold,
+  );
+
+  static const headlineDescription = TextStyle(
+    color: Color.fromRGBO(0, 0, 0, 0.8),
+    fontFamily: 'NotoSans',
+    fontSize: 16.0,
+    fontStyle: FontStyle.normal,
+    fontWeight: FontWeight.normal,
+  );
+
+  static const seasonText = TextStyle(
+    color: Color.fromRGBO(255, 255, 255, 0.9),
+    fontFamily: 'NotoSans',
+    fontSize: 24.0,
+    fontStyle: FontStyle.normal,
+    fontWeight: FontWeight.normal,
+  );
+
+  static const appBackground = Color(0xffd0d0d0);
+
+  static const scaffoldBackground = Color(0xfff0f0f0);
+
+  static const buttonColor = Color(0xff007aff);
+
+  static const searchBackground = Color(0xffe0e0e0);
+
+  static const TextStyle searchText = TextStyle(
+    color: Color.fromRGBO(0, 0, 0, 1.0),
+    fontFamily: 'NotoSans',
+    fontSize: 14.0,
+    fontStyle: FontStyle.normal,
+    fontWeight: FontWeight.normal,
+  );
+
+  static const Color searchCursorColor = Color.fromRGBO(0, 122, 255, 1.0);
+
+  static const Color searchIconColor = Color.fromRGBO(128, 128, 128, 1.0);
+
+  static const seasonColors = <Season, Color>{
+    Season.winter: Color(0xff336dcc),
+    Season.spring: Color(0xff2fa02b),
+    Season.summer: Color(0xff287213),
+    Season.autumn: Color(0xff724913),
+  };
+
+  static const seasonBorder = const Border(
+    top: BorderSide(color: Color(0xff606060)),
+    left: BorderSide(color: Color(0xff606060)),
+    bottom: BorderSide(color: Color(0xff606060)),
+    right: BorderSide(color: Color(0xff606060)),
+  );
+
+  static const uncheckedIcon = IconData(
+    0xf372,
+    fontFamily: CupertinoIcons.iconFont,
+    fontPackage: CupertinoIcons.iconFontPackage,
+  );
+
+  static const checkedIcon = IconData(
+    0xf373,
+    fontFamily: CupertinoIcons.iconFont,
+    fontPackage: CupertinoIcons.iconFontPackage,
+  );
+}