added localization

l10n.yaml

@@ -0,0 +1,3 @@
+arb-dir: lib/localization
+template-arb-file: app_en.arb
+output-localization-file: app_localizations.dart

lib/localization/app_de.arb

@@ -0,0 +1,3 @@
+{
+    "helloWorld": "Hallo, Welt!"
+}

lib/localization/app_en.arb

@@ -0,0 +1,6 @@
+{
+  "helloWorld": "Hello World!",
+  "@helloWorld": {
+    "description": "The conventional newborn programmer greeting"
+  }
+}

lib/main.dart

@@ -1,4 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:kassenzettel/pages/dashboard_page.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 
 void main() {
   runApp(const MyApp());
@@ -7,109 +10,28 @@ void main() {
 class MyApp extends StatelessWidget {
   const MyApp({super.key});
 
-  // This widget is the root of your application.
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
-      title: 'Flutter Demo',
+      title: 'Kassenzettel Demo',
+      localizationsDelegates: const [
+        AppLocalizations.delegate,
+        GlobalMaterialLocalizations.delegate,
+        GlobalWidgetsLocalizations.delegate,
+        GlobalCupertinoLocalizations.delegate,
+      ],
+      supportedLocales: const [
+        Locale('en'),
+        Locale('de'),
+      ],
       theme: ThemeData(
-        // This is the theme of your application.
-        //
-        // Try running your application with "flutter run". You'll see the
-        // application has a blue toolbar. Then, without quitting the app, try
-        // changing the primarySwatch below to Colors.green and then invoke
-        // "hot reload" (press "r" in the console where you ran "flutter run",
-        // or simply save your changes to "hot reload" in a Flutter IDE).
-        // Notice that the counter didn't reset back to zero; the application
-        // is not restarted.
+        useMaterial3: true,
         primarySwatch: Colors.blue,
       ),
-      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
-  // 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++;
-    });
-  }
-
-  @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.
-    return Scaffold(
-      appBar: AppBar(
-        // 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(
-          // 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.
-          //
-          // Invoke "debug painting" (press "p" in the console, choose the
-          // "Toggle Debug Paint" action from the Flutter Inspector in Android
-          // Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
-          // to see the wireframe for each widget.
-          //
-          // 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).
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: <Widget>[
-            const Text(
-              'You have pushed the button this many times:',
-            ),
-            Text(
-              '$_counter',
-              style: Theme.of(context).textTheme.headlineMedium,
-            ),
-          ],
-        ),
-      ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _incrementCounter,
-        tooltip: 'Increment',
-        child: const Icon(Icons.add),
-      ), // This trailing comma makes auto-formatting nicer for build methods.
+      routes: {
+        DashboardPage.routeName: (context) => const DashboardPage(),
+      },
+      initialRoute: DashboardPage.routeName,
     );
   }
 }

lib/pages/dashboard_page.dart

@@ -0,0 +1,25 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+
+class DashboardPage extends StatelessWidget {
+  const DashboardPage({super.key});
+
+  static const routeName = '/dashboard';
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(AppLocalizations.of(context)?.helloWorld ?? ''),
+      ),
+      bottomNavigationBar: BottomAppBar(
+          child: Align(
+        alignment: Alignment.centerRight,
+        child: FloatingActionButton(
+          onPressed: () {},
+          child: const Icon(Icons.add),
+        ),
+      )),
+    );
+  }
+}

pubspec.lock

@@ -70,11 +70,24 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.1"
+  flutter_localizations:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   flutter_test:
     dependency: "direct dev"
     description: flutter
     source: sdk
     version: "0.0.0"
+  intl:
+    dependency: "direct main"
+    description:
+      name: intl
+      sha256: "910f85bce16fb5c6f614e117efa303e85a1731bb0081edf3604a2ae6e9a3cc91"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.17.0"
   js:
     dependency: transitive
     description:

pubspec.yaml

@@ -35,6 +35,9 @@ dependencies:
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.2
+  flutter_localizations: 
+    sdk: flutter
+  intl: any
 
 dev_dependencies:
   flutter_test:
@@ -57,6 +60,7 @@ flutter:
   # included with your application, so that you can use the icons in
   # the material Icons class.
   uses-material-design: true
+  generate: true
 
   # To add assets to your application, add an assets section, like this:
   # assets: