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tp1/analysis_options.yaml
View file @ 285c5ed2
# This file configures the analyzer, which statically analyzes Dart code to
# check for errors, warnings, and lints.
#
# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
# invoked from the command line by running `flutter analyze`.
# The following line activates a set of recommended lints for Flutter apps,
# packages, and plugins designed to encourage good coding practices.
include: package:flutter_lints/flutter.yaml include: package:flutter_lints/flutter.yaml
linter: linter:
# The lint rules applied to this project can be customized in the
# section below to disable rules from the `package:flutter_lints/flutter.yaml`
# included above or to enable additional rules. A list of all available lints
# and their documentation is published at https://dart.dev/lints.
#
# Instead of disabling a lint rule for the entire project in the
# section below, it can also be suppressed for a single line of code
# or a specific dart file by using the `// ignore: name_of_lint` and
# `// ignore_for_file: name_of_lint` syntax on the line or in the file
# producing the lint.
rules: rules:
# avoid_print: false # Uncomment to disable the `avoid_print` rule avoid_print: false
# prefer_single_quotes: true # Uncomment to enable the `prefer_single_quotes` rule prefer_const_constructors_in_immutables: false
prefer_const_constructors: false
# Additional information about this file can be found at prefer_const_literals_to_create_immutables: false
# https://dart.dev/guides/language/analysis-options prefer_final_fields: false
unnecessary_breaks: true
use_key_in_widget_constructors: false
tp1/lib/main.dart
View file @ 285c5ed2
import 'package:english_words/english_words.dart';
import 'package:flutter/material.dart'; import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'dart:math';
void main() { void main() {
runApp(const MyApp()); runApp(MyApp());
} }
class MyApp extends StatelessWidget { class MyApp extends StatelessWidget {
const MyApp({super.key}); const MyApp({super.key});
// This widget is the root of your application.
@override @override
Widget build(BuildContext context) { Widget build(BuildContext context) {
return MaterialApp( return ChangeNotifierProvider(
title: 'Flutter Demo', create: (context) => MyAppState(),
child: MaterialApp(
title: 'Namer App',
theme: ThemeData( theme: ThemeData(
// This is the theme of your application.
//
// TRY THIS: Try running your application with "flutter run". You'll see
// the application has a purple toolbar. Then, without quitting the app,
// try changing the seedColor in the colorScheme below to Colors.green
// and then invoke "hot reload" (save your changes or press the "hot
// reload" button in a Flutter-supported IDE, or press "r" if you used
// the command line to start the app).
//
// Notice that the counter didn't reset back to zero; the application
// state is not lost during the reload. To reset the state, use hot
// restart instead.
//
// This works for code too, not just values: Most code changes can be
// tested with just a hot reload.
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true, useMaterial3: true,
colorScheme: ColorScheme.fromSeed(seedColor: Color.fromARGB(255, Random().nextInt(255), Random().nextInt(255), Random().nextInt(255))),
),
home: MyHomePage(),
), ),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
); );
} }
} }
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
// This widget is the home page of your application. It is stateful, meaning class MyAppState extends ChangeNotifier {
// that it has a State object (defined below) that contains fields that affect var current = WordPair.random();
// how it looks.
// This class is the configuration for the state. It holds the values (in this void getNext(){
// case the title) provided by the parent (in this case the App widget) and current = WordPair.random();
// used by the build method of the State. Fields in a Widget subclass are notifyListeners();
// always marked "final". }
var favorites = <WordPair>[];
final String title; void toggleFavorite() {
if (favorites.contains(current)) {
favorites.remove(current);
} else {
favorites.add(current);
}
notifyListeners();
}
}
class MyHomePage extends StatefulWidget {
@override @override
State<MyHomePage> createState() => _MyHomePageState(); State<MyHomePage> createState() => _MyHomePageState();
} }
class _MyHomePageState extends State<MyHomePage> { class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
void _incrementCounter() { var selectedIndex = 0;
@override
Widget build(BuildContext context) {
Widget page;
switch (selectedIndex) {
case 0:
page = GeneratorPage();
break;
case 1:
page = FavoritePage();
break;
default:
throw UnimplementedError('no widget for $selectedIndex');
}
return LayoutBuilder(
builder: (context,constraints) {
return Scaffold(
body: Row(
children: [
SafeArea(
child: NavigationRail(
extended: constraints.maxWidth>=600,
destinations: [
NavigationRailDestination(
icon: Icon(Icons.home),
label: Text('Home'),
),
NavigationRailDestination(
icon: Icon(Icons.favorite),
label: Text('Favorites'),
),
],
selectedIndex: selectedIndex,
onDestinationSelected: (value) {
print('selected: $value');
setState(() { setState(() {
// This call to setState tells the Flutter framework that something has selectedIndex = value;
// changed in this State, which causes it to rerun the build method below
// so that the display can reflect the updated values. If we changed
// _counter without calling setState(), then the build method would not be
// called again, and so nothing would appear to happen.
_counter++;
}); });
},
),
),
Expanded(
child: Container(
color: Theme.of(context).colorScheme.primaryContainer,
child: page,
),
),
],
),
);
} }
);
}
}
class GeneratorPage extends StatelessWidget {
@override @override
Widget build(BuildContext context) { Widget build(BuildContext context) {
// This method is rerun every time setState is called, for instance as done var appState = context.watch<MyAppState>();
// by the _incrementCounter method above. var pair = appState.current;
//
// The Flutter framework has been optimized to make rerunning build methods IconData icon;
// fast, so that you can just rebuild anything that needs updating rather if (appState.favorites.contains(pair)) {
// than having to individually change instances of widgets. icon = Icons.favorite;
return Scaffold( } else {
appBar: AppBar( icon = Icons.favorite_border;
// TRY THIS: Try changing the color here to a specific color (to }
// Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
// change color while the other colors stay the same. return Center(
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text(widget.title),
),
body: Center(
// Center is a layout widget. It takes a single child and positions it
// in the middle of the parent.
child: Column( child: Column(
// Column is also a layout widget. It takes a list of children and
// arranges them vertically. By default, it sizes itself to fit its
// children horizontally, and tries to be as tall as its parent.
//
// Column has various properties to control how it sizes itself and
// how it positions its children. Here we use mainAxisAlignment to
// center the children vertically; the main axis here is the vertical
// axis because Columns are vertical (the cross axis would be
// horizontal).
//
// TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
// action in the IDE, or press "p" in the console), to see the
// wireframe for each widget.
mainAxisAlignment: MainAxisAlignment.center, mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[ children: [
const Text( BigCard(pair: pair),
'You have pushed the button this many times:', SizedBox(height: 10),
Row(
mainAxisSize: MainAxisSize.min,
children: [
ElevatedButton.icon(
onPressed: () {
appState.toggleFavorite();
},
icon: Icon(icon),
label: Text('Like'),
),
SizedBox(width: 10),
ElevatedButton(
onPressed: () {
appState.getNext();
},
child: Text('Next'),
), ),
Text( ],
'$_counter',
style: Theme.of(context).textTheme.headlineMedium,
), ),
], ],
), ),
);
}
}
class BigCard extends StatelessWidget {
const BigCard({
super.key,
required this.pair,
});
final WordPair pair;
@override
Widget build(BuildContext context) {
final theme=Theme.of(context);
final style = theme.textTheme.displayMedium!.copyWith(
color: theme.colorScheme.onPrimary,
);
return Card(
color: theme.colorScheme.primary,
child: Padding(
padding: const EdgeInsets.all(20),
child: Text(
pair.asLowerCase,
style: style,
semanticsLabel: "${pair.first} ${pair.second}",
),
), ),
floatingActionButton: FloatingActionButton( );
onPressed: _incrementCounter, }
tooltip: 'Increment', }
child: const Icon(Icons.add),
), // This trailing comma makes auto-formatting nicer for build methods.
class FavoritePage extends StatelessWidget {
@override
Widget build(BuildContext context) {
var appState = context.watch<MyAppState>();
var favorites = appState.favorites;
return Scaffold(
body: Column(children: [
Text('Favorites'),
for (var fav in favorites)
Text(fav.asLowerCase),
],)
); );
} }
} }
\ No newline at end of file
tp1/pubspec.lock
View file @ 285c5ed2
...@@ -41,14 +41,14 @@ packages: ...@@ -41,14 +41,14 @@ packages:
url: "https://pub.dev" url: "https://pub.dev"
source: hosted source: hosted
version: "1.18.0" version: "1.18.0"
cupertino_icons: english_words:
dependency: "direct main" dependency: "direct main"
description: description:
name: cupertino_icons name: english_words
sha256: d57953e10f9f8327ce64a508a355f0b1ec902193f66288e8cb5070e7c47eeb2d sha256: "6a7ef6473a97bd8571b6b641d006a6e58a7c67e65fb6f3d6d1151cb46b0e983c"
url: "https://pub.dev" url: "https://pub.dev"
source: hosted source: hosted
version: "1.0.6" version: "4.0.0"
fake_async: fake_async:
dependency: transitive dependency: transitive
description: description:
...@@ -66,10 +66,10 @@ packages: ...@@ -66,10 +66,10 @@ packages:
dependency: "direct dev" dependency: "direct dev"
description: description:
name: flutter_lints name: flutter_lints
sha256: e2a421b7e59244faef694ba7b30562e489c2b489866e505074eb005cd7060db7 sha256: a25a15ebbdfc33ab1cd26c63a6ee519df92338a9c10f122adda92938253bef04
url: "https://pub.dev" url: "https://pub.dev"
source: hosted source: hosted
version: "3.0.1" version: "2.0.3"
flutter_test: flutter_test:
dependency: "direct dev" dependency: "direct dev"
description: flutter description: flutter
...@@ -103,10 +103,10 @@ packages: ...@@ -103,10 +103,10 @@ packages:
dependency: transitive dependency: transitive
description: description:
name: lints name: lints
sha256: cbf8d4b858bb0134ef3ef87841abdf8d63bfc255c266b7bf6b39daa1085c4290 sha256: "0a217c6c989d21039f1498c3ed9f3ed71b354e69873f13a8dfc3c9fe76f1b452"
url: "https://pub.dev" url: "https://pub.dev"
source: hosted source: hosted
version: "3.0.0" version: "2.1.1"
matcher: matcher:
dependency: transitive dependency: transitive
description: description:
...@@ -131,6 +131,14 @@ packages: ...@@ -131,6 +131,14 @@ packages:
url: "https://pub.dev" url: "https://pub.dev"
source: hosted source: hosted
version: "1.11.0" version: "1.11.0"
nested:
dependency: transitive
description:
name: nested
sha256: "03bac4c528c64c95c722ec99280375a6f2fc708eec17c7b3f07253b626cd2a20"
url: "https://pub.dev"
source: hosted
version: "1.0.0"
path: path:
dependency: transitive dependency: transitive
description: description:
...@@ -139,6 +147,14 @@ packages: ...@@ -139,6 +147,14 @@ packages:
url: "https://pub.dev" url: "https://pub.dev"
source: hosted source: hosted
version: "1.9.0" version: "1.9.0"
provider:
dependency: "direct main"
description:
name: provider
sha256: "9a96a0a19b594dbc5bf0f1f27d2bc67d5f95957359b461cd9feb44ed6ae75096"
url: "https://pub.dev"
source: hosted
version: "6.1.1"
sky_engine: sky_engine:
dependency: transitive dependency: transitive
description: flutter description: flutter
...@@ -209,5 +225,5 @@ packages: ...@@ -209,5 +225,5 @@ packages:
source: hosted source: hosted
version: "14.0.0" version: "14.0.0"
sdks: sdks:
dart: ">=3.4.0-99.0.dev <4.0.0" dart: ">=3.2.0 <4.0.0"
flutter: ">=3.18.0-18.0.pre.54" flutter: ">=3.18.0-18.0.pre.54"
tp1/pubspec.yaml
View file @ 285c5ed2
name: tp1 name: tp1
description: "A new Flutter project." description: A new Flutter project.
# The following line prevents the package from being accidentally published to
# pub.dev using `flutter pub publish`. This is preferred for private packages.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev publish_to: 'none' # Remove this line if you wish to publish to pub.dev
# The following defines the version and build number for your application. version: 0.0.1+1
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number is used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
# In Windows, build-name is used as the major, minor, and patch parts
# of the product and file versions while build-number is used as the build suffix.
version: 1.0.0+1
environment: environment:
sdk: '>=3.4.0-99.0.dev <4.0.0' sdk: ^3.1.1
# Dependencies specify other packages that your package needs in order to work.
# To automatically upgrade your package dependencies to the latest versions
# consider running `flutter pub upgrade --major-versions`. Alternatively,
# dependencies can be manually updated by changing the version numbers below to
# the latest version available on pub.dev. To see which dependencies have newer
# versions available, run `flutter pub outdated`.
dependencies: dependencies:
flutter: flutter:
sdk: flutter sdk: flutter
english_words: ^4.0.0
# The following adds the Cupertino Icons font to your application. provider: ^6.0.0
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.6
dev_dependencies: dev_dependencies:
flutter_test: flutter_test:
sdk: flutter sdk: flutter
# The "flutter_lints" package below contains a set of recommended lints to flutter_lints: ^2.0.0
# encourage good coding practices. The lint set provided by the package is
# activated in the `analysis_options.yaml` file located at the root of your
# package. See that file for information about deactivating specific lint
# rules and activating additional ones.
flutter_lints: ^3.0.0
# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec
# The following section is specific to Flutter packages.
flutter: flutter:
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true uses-material-design: true
# To add assets to your application, add an assets section, like this:
# assets:
# - images/a_dot_burr.jpeg
# - images/a_dot_ham.jpeg
# An image asset can refer to one or more resolution-specific "variants", see
# https://flutter.dev/assets-and-images/#resolution-aware
# For details regarding adding assets from package dependencies, see
# https://flutter.dev/assets-and-images/#from-packages
# To add custom fonts to your application, add a fonts section here,
# in this "flutter" section. Each entry in this list should have a
# "family" key with the font family name, and a "fonts" key with a
# list giving the asset and other descriptors for the font. For
# example:
# fonts:
# - family: Schyler
# fonts:
# - asset: fonts/Schyler-Regular.ttf
# - asset: fonts/Schyler-Italic.ttf
# style: italic
# - family: Trajan Pro
# fonts:
# - asset: fonts/TrajanPro.ttf
# - asset: fonts/TrajanPro_Bold.ttf
# weight: 700
#
# For details regarding fonts from package dependencies,
# see https://flutter.dev/custom-fonts/#from-packages
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