Переключение валют

lib/screens/settings.dart

@@ -1,3 +1,4 @@
+import 'package:checker/db.dart';
 import 'package:checker/screens/currencies.dart';
 import 'package:checker/screens/languages.dart';
 import 'package:flutter/material.dart';
@@ -7,7 +8,13 @@ import 'package:checker/strings.dart';
 import 'package:checker/base/base_state.dart';
 
 class SettingsScreen extends StatefulWidget {
-  @override State createState() => new _SettingsState();
+
+  final SqliteHelper helper;
+  final String app;
+
+  SettingsScreen(this.helper, this.app);
+
+  @override State createState() => new SettingsState(helper, app);
 }
 
 class MenuItem {
@@ -18,22 +25,26 @@ class MenuItem {
   MenuItem(this.title, this.selectedValue);
 }
 
-class _SettingsState extends BaseState<SettingsScreen> {
+class SettingsState extends BaseState<SettingsScreen> {
 
   List<MenuItem> menuItems;
 
-  @override onStart() {
-    if (menuItems == null) {
+  SettingsState(SqliteHelper helper, String app) {
+    this.helper = helper;
+    this.app = app;
+  }
+
+  @override Widget build(BuildContext ctx) {
       helper.getSettings().then((info) {
         setState(() {
           print("load settings");
           menuItems = [
-            new MenuItem(StringsLocalization.locale(), getLocaleTitle(info["locale"])),
+//            new MenuItem(StringsLocalization.locale(), getLocaleTitle(info["locale"])),
             new MenuItem(StringsLocalization.currency(), getCurrencyTitle(info["currency"]))
           ];
         });
       });
-    }
+    return getMainWidget();
   }
 
   @override
@@ -41,8 +52,8 @@ class _SettingsState extends BaseState<SettingsScreen> {
     return menuItems == null
         ? getBackground()
         : new Container(
-          margin: new EdgeInsets.only(top: 16.0),
-          child: new ListView(children: getSettings()));
+        margin: new EdgeInsets.only(top: 16.0),
+        child: new ListView(children: getSettings()));
   }
 
   @override
@@ -71,8 +82,8 @@ class _SettingsState extends BaseState<SettingsScreen> {
 
   void onPressed(int position) {
     switch (position) {
-      case 0 : return pushRoute(context, new LanguagesScreen());
-      case 1 : return pushRoute(context, new CurrenciesScreen());
+//      case 0 : return pushRoute(context, new LanguagesScreen());
+      case 0 : return pushRoute(context, new CurrenciesScreen(helper, app));
     }
   }