-

Author: polina-c

lib/l10n/README.md

@@ -0,0 +1 @@
+https://docs.flutter.dev/development/accessibility-and-localization/internationalization#introduction-to-localizations-in-flutter

lib/main.dart

@@ -1,4 +1,8 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
+import 'package:flutter_markdown/flutter_markdown.dart';
+
+import 'texts.dart';
 
 void main() {
   runApp(const MyApp());
@@ -11,22 +15,16 @@ class MyApp extends StatelessWidget {
   Widget build(BuildContext context) {
     return MaterialApp(
       title: 'Flutter Chat',
+      localizationsDelegates: const [
+        GlobalMaterialLocalizations.delegate,
+        GlobalWidgetsLocalizations.delegate,
+        GlobalCupertinoLocalizations.delegate,
+      ],
+      supportedLocales: const [
+        Locale('en'), // English
+        Locale('ru'), // Russian
+      ],
       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 blue 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,
       ),
@@ -38,87 +36,54 @@ class MyApp extends StatelessWidget {
 class MyHomePage extends StatefulWidget {
   const MyHomePage({super.key, required this.title});
 
-  // This widget is the home page of your application. It is stateful, meaning
-  // that it has a State object (defined below) that contains fields that affect
-  // how it looks.
-
-  // This class is the configuration for the state. It holds the values (in this
-  // case the title) provided by the parent (in this case the App widget) and
-  // used by the build method of the State. Fields in a Widget subclass are
-  // always marked "final".
-
   final String title;
 
   @override
   State<MyHomePage> createState() => _MyHomePageState();
 }
 
 class _MyHomePageState extends State<MyHomePage> {
-  int _counter = 0;
-
-  void _incrementCounter() {
-    setState(() {
-      // This call to setState tells the Flutter framework that something has
-      // 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++;
-    });
-  }
+  Locales _locale = Locales.en;
 
   @override
   Widget build(BuildContext context) {
-    // This method is rerun every time setState is called, for instance as done
-    // by the _incrementCounter method above.
-    //
-    // The Flutter framework has been optimized to make rerunning build methods
-    // fast, so that you can just rebuild anything that needs updating rather
-    // than having to individually change instances of widgets.
+    final titleBgColor = Theme.of(context).colorScheme.inversePrimary;
+    final bgColor = Theme.of(context).colorScheme.background;
+
     return Scaffold(
       appBar: AppBar(
-        // 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.
-        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.
+        backgroundColor: titleBgColor,
         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.
+      body: Padding(
+        padding: const EdgeInsets.all(8.0),
         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,
           children: <Widget>[
-            const Text(
-              'You have pushed the button this many times:',
+            Align(
+              alignment: Alignment.topRight,
+              child: DropdownButton<Locales>(
+                focusColor: bgColor,
+                items: Locales.values
+                    .map((l) =>
+                        DropdownMenuItem(value: l, child: Text(l.displayName)))
+                    .toList(),
+                onChanged: (l) => setState(() {
+                  _locale = l!;
+                }),
+                value: _locale,
+              ),
             ),
-            Text(
-              '$_counter',
-              style: Theme.of(context).textTheme.headlineMedium,
+            Expanded(
+              child: SizedBox(
+                //width: 400,
+                child: Markdown(
+                  data: Texts.mainIntro.text[_locale]!,
+                ),
+              ),
             ),
           ],
         ),
       ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _incrementCounter,
-        tooltip: 'Increment',
-        child: const Icon(Icons.add),
-      ), // This trailing comma makes auto-formatting nicer for build methods.
     );
   }
 }

lib/texts.dart

@@ -0,0 +1,38 @@
+enum Locales {
+  en('English'),
+  ru('Русский'),
+  ;
+
+  const Locales(this.displayName);
+
+  final String displayName;
+}
+
+enum Texts {
+  mainIntro({
+    Locales.en: '''
+[Flutter](http://flutter.dev) is a beautiful technology for building beautiful applications.
+
+We are a community of people who want Flutter to empower those making this world better, by enabling them to quickly create beautiful web and mobile applications.
+
+We welcome:
+* Career explorers, who want to learn and use Flutter
+* Volunteers, who would like to support the explorers in understanding Flutter, online or in classroom
+
+We speak English and Russian and want to extend the list of languages.
+
+We are located in the US, Redmond WA and want to extend the list of locations.
+
+Required skills: basic English reading.
+
+Join us at Facebook group [Flutter Chat](https://www.facebook.com/groups/676660377543846/) to participate.
+''',
+    Locales.ru: '''
+hi
+''',
+  });
+
+  const Texts(this.text);
+
+  final Map<Locales, String> text;
+}

pubspec.lock

@@ -9,7 +9,10 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  cupertino_icons: ^1.0.2
+  flutter_localizations:
+    sdk: flutter
+  flutter_markdown: ^0.6.14
+  intl: ^0.18.0
 
 dev_dependencies:
   flutter_test: