RG-3443 Экран настроек локализации

lib/screens/languages.dart

@@ -1,16 +1,16 @@
+import 'package:checker/base/base_screen.dart';
 import 'package:checker/base/settings_base_state.dart';
 import 'package:checker/db.dart';
 import 'package:flutter/material.dart';
 import 'package:checker/consts.dart';
 import 'package:checker/strings.dart';
 import 'package:checker/common.dart';
+import 'package:intl/intl.dart';
 
-class LanguagesScreen extends StatefulWidget {
+class LanguagesScreen extends BaseScreen {
 
-  final SqliteHelper helper;
-  final String app;
+  LanguagesScreen(helper, app) : super(helper, app);
 
-  LanguagesScreen(this.helper, this.app);
   @override State createState() => new LanguagesState(helper, app);
 }
 
@@ -18,10 +18,18 @@ class LanguagesState extends SettingsBaseState<LanguagesScreen> {
 
   LanguagesState(SqliteHelper helper, String app) : super(helper, app);
 
+  List<String> languages = const ['ru', 'en', 'ua', 'es'];
 
   @override
   List<String> getOptions() {
-    return languages;
+
+    List<String> list = new List();
+
+    for (String code in languages) {
+      list.add(getLocaleTitle(code));
+    }
+
+    return list;
   }
 
   @override
@@ -30,8 +38,14 @@ class LanguagesState extends SettingsBaseState<LanguagesScreen> {
   }
 
   @override
-  void saveOption() {
-//    helper.sa(languages[selectedItem]);
+  saveOption() async {
+    await helper.saveLocale(languages[selectedItem]);
+    Intl.defaultLocale = languages[selectedItem];
+    StringsLocalization.load(languages[selectedItem]).then((_) {
+      setState(() {
+
+      });
+    });
   }
 
   @override