Переключение валют

lib/screens/languages.dart

@@ -1,14 +1,23 @@
 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';
 
 class LanguagesScreen extends StatefulWidget {
-  @override State createState() => new _LanguagesState();
+
+  final SqliteHelper helper;
+  final String app;
+
+  LanguagesScreen(this.helper, this.app);
+  @override State createState() => new LanguagesState(helper, app);
 }
 
-class _LanguagesState extends SettingsBaseState<LanguagesScreen> {
+class LanguagesState extends SettingsBaseState<LanguagesScreen> {
+
+  LanguagesState(SqliteHelper helper, String app) : super(helper, app);
+
 
   @override
   List<String> getOptions() {