add localization support

l10n.yaml

@@ -0,0 +1,3 @@
+arb-dir: lib/l10n
+template-arb-file: app_en.arb
+output-localization-file: app_localizations.dart

lib/class/login_form.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../model/auth.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 
 // Define a custom Form widget.
 class LoginForm extends StatefulWidget {
@@ -36,15 +37,15 @@ class LoginFormState extends State<LoginForm> {
               controller: serverController,
               validator: (value) {
                 if (value.isEmpty) {
-                  return 'Server is required.';
+                  return AppLocalizations.of(context).fieldRequired;
                 }
                 return null;
               },
               decoration: new InputDecoration(
                   contentPadding:
                       EdgeInsets.symmetric(horizontal: 10, vertical: 10),
                   hintText: "http://192.168.1.50:8000",
-                  labelText: 'Server'),
+                  labelText: AppLocalizations.of(context).server),
             ),
           ),
           new AutofillGroup(
@@ -55,12 +56,12 @@ class LoginFormState extends State<LoginForm> {
                 controller: usernameController,
                 validator: (value) {
                   if (value.isEmpty) {
-                    return 'Username is required.';
+                    return AppLocalizations.of(context).fieldRequired;
                   }
                   return null;
                 },
                 decoration: new InputDecoration(
-                  labelText: 'Username',
+                  labelText: AppLocalizations.of(context).username,
                   contentPadding:
                       EdgeInsets.symmetric(horizontal: 10, vertical: 10),
                 ),
@@ -72,12 +73,12 @@ class LoginFormState extends State<LoginForm> {
                 controller: passwordController,
                 validator: (value) {
                   if (value.isEmpty) {
-                    return 'Password is required.';
+                    return AppLocalizations.of(context).fieldRequired;
                   }
                   return null;
                 },
                 decoration: new InputDecoration(
-                  labelText: 'Password',
+                  labelText: AppLocalizations.of(context).password,
                   contentPadding:
                       EdgeInsets.symmetric(horizontal: 10, vertical: 10),
                 ),
@@ -99,11 +100,11 @@ class LoginFormState extends State<LoginForm> {
         child: RaisedButton(
           textColor: Colors.white,
           color: Color(0xFF17541f),
-          child: Text('Login'),
+          child: Text(AppLocalizations.of(context).login),
           onPressed: () async {
             if (_formKey.currentState.validate()) {
-              Scaffold.of(context)
-                  .showSnackBar(SnackBar(content: Text('Logging in...')));
+              Scaffold.of(context).showSnackBar(SnackBar(
+                  content: Text(AppLocalizations.of(context).loggingIn)));
 
               _auth
                   .login(
@@ -117,7 +118,8 @@ class LoginFormState extends State<LoginForm> {
                 } else {
                   print(loginError);
                   Scaffold.of(context).showSnackBar(SnackBar(
-                      content: Text('Failed to login: ' + loginError)));
+                      content: Text(AppLocalizations.of(context).loginFailed +
+                          loginError)));
                 }
               });
             }

lib/l10n/app_de.arb

@@ -0,0 +1,16 @@
+{
+    "yes": "Ja",
+    "no": "Nein",
+    "logout": "Ausloggen?",
+    "login": "Anmeldung",
+    "loggingIn": "Einloggen...",
+    "loginFailed": "Einloggen fehlgeschlagen: ",
+    "username": "Nutzername",
+    "password": "Passwort",
+    "server": "Server",
+    "fieldRequired": "Erforderlich.",
+    "fileUploaded": "Datei hochgeladen.",
+    "readyToUpload": "Bereit zum Hochladen.",
+    "shareInstructions": "Wählen Sie im Menü \"Freigeben\" die Option \"Paperless Share\", um Bilder und Dokumente hochzuladen.",
+    "serverInstructions": "Ihr Server wird versuchen, es automatisch zu verarbeiten. Es sollte in wenigen Augenblicken erscheinen."
+}

lib/l10n/app_en.arb

@@ -0,0 +1,16 @@
+{
+    "yes": "Yes",
+    "no": "No",
+    "logout": "Logout?",
+    "login": "Login",
+    "loggingIn": "Logging in...",
+    "loginFailed": "Failed to login: ",
+    "username": "Username",
+    "password": "Password",
+    "server": "Server",
+    "fieldRequired": "Required.",
+    "fileUploaded": "File uploaded.",
+    "readyToUpload": "Ready to upload!",
+    "shareInstructions": "Select Paperless Share in the Share Menu to upload pictures and documents",
+    "serverInstructions": "Your server will attempt to process it automatically. It should appear within a few moments."
+}

lib/main.dart

@@ -3,6 +3,8 @@ import 'package:provider/provider.dart';
 import 'model/auth.dart';
 import 'login.dart';
 import 'share.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 
 void main() {
   runApp(PaperlessShare());
@@ -75,6 +77,16 @@ class _PaperlessShareState extends State<PaperlessShare> {
             '/login': (context) => new LoginPage(),
             '/share': (context) => new SharePage(),
           },
+          localizationsDelegates: [
+            AppLocalizations.delegate,
+            GlobalMaterialLocalizations.delegate,
+            GlobalWidgetsLocalizations.delegate,
+            GlobalCupertinoLocalizations.delegate,
+          ],
+          supportedLocales: [
+            const Locale('en', ''),
+            const Locale('de', ''),
+          ],
         ));
   }
 }

lib/share.dart

@@ -7,6 +7,7 @@ import 'package:fluttertoast/fluttertoast.dart';
 import 'package:flutter/services.dart';
 import 'model/auth.dart';
 import 'package:flutter_spinkit/flutter_spinkit.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 
 class SharePage extends StatefulWidget {
   @override
@@ -69,7 +70,7 @@ class _SharePageState extends State<SharePage> {
 
     if (response.statusCode == 200) {
       Fluttertoast.showToast(
-        msg: "File uploaded.",
+        msg: AppLocalizations.of(context).fileUploaded,
         toastLength: Toast.LENGTH_SHORT,
         gravity: ToastGravity.BOTTOM,
         timeInSecForIosWeb: 1,
@@ -141,17 +142,17 @@ class _SharePageState extends State<SharePage> {
             context: context,
             builder: (BuildContext context) {
               return AlertDialog(
-                title: new Text("Logout?"),
+                title: new Text(AppLocalizations.of(context).logout),
                 actions: [
                   new FlatButton(
-                    child: new Text("Yes"),
+                    child: new Text(AppLocalizations.of(context).yes),
                     onPressed: () {
                       _auth.logout();
                       Navigator.pushReplacementNamed(context, "/login");
                     },
                   ),
                   new FlatButton(
-                      child: new Text("No"),
+                      child: new Text(AppLocalizations.of(context).no),
                       onPressed: () {
                         Navigator.of(context).pop();
                       }),
@@ -168,11 +169,9 @@ class _SharePageState extends State<SharePage> {
         child: Column(
           mainAxisAlignment: MainAxisAlignment.center,
           children: [
-            _paddedText("Ready to upload!"),
-            _paddedText(
-                "Select Paperless Share in the Share Menu to upload pictures and documents."),
-            _paddedText(
-                "Your server will attempt to process it automatically. It should appear within a few moments."),
+            _paddedText(AppLocalizations.of(context).readyToUpload),
+            _paddedText(AppLocalizations.of(context).shareInstructions),
+            _paddedText(AppLocalizations.of(context).serverInstructions),
           ],
         ));
   }

pubspec.lock

@@ -127,6 +127,11 @@ packages:
       url: "https://github.com/knyghtryda/flutter_launcher_icons"
     source: git
     version: "0.8.1"
+  flutter_localizations:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
   flutter_spinkit:
     dependency: "direct main"
     description:
@@ -179,6 +184,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.19"
+  intl:
+    dependency: "direct main"
+    description:
+      name: intl
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.17.0"
   js:
     dependency: transitive
     description:

pubspec.yaml

@@ -23,7 +23,10 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-
+  flutter_localizations:
+    sdk: flutter
+
+  intl: ^0.17.0
   encrypted_shared_preferences: ^1.0.7
   http: ^0.13.1
   provider: ^5.0.0
@@ -66,6 +69,7 @@ flutter:
     - assets/logo.png
     - assets/icon.png
 
+  generate: true
   # An image asset can refer to one or more resolution-specific "variants", see
   # https://flutter.dev/assets-and-images/#resolution-aware.