Исправлены баги

lib/screens/faq.dart

@@ -1,5 +1,7 @@
 import 'dart:async';
 
+import 'package:checker/base/base_screen.dart';
+import 'package:checker/db.dart';
 import 'package:checker/resources.dart';
 import 'package:checker/strings.dart';
 import 'package:flutter/material.dart';
@@ -62,17 +64,22 @@ class EntryItem extends StatelessWidget {
   }
 }
 
-class FAQScreen extends StatefulWidget {
+class FAQScreen extends BaseScreen {
 
-  FAQScreen(this.b);
-  final bool b;
+  FAQScreen(SqliteHelper helper, String app,
+      this.returnToScanner) : super(helper, app);
 
-  @override State createState() => new FAQScreenState<FAQScreen>(b);
+  final bool returnToScanner;
+
+  @override State createState() => new FAQScreenState<FAQScreen>(returnToScanner, helper, app);
 }
 
 class FAQScreenState<T> extends BaseState<FAQScreen> {
 
-  FAQScreenState(this.returnToScanner);
+  FAQScreenState(this.returnToScanner, SqliteHelper helper, String app) {
+    this.helper = helper;
+    this.app = app;
+  }
 
   bool returnToScanner;
 
@@ -87,7 +94,7 @@ class FAQScreenState<T> extends BaseState<FAQScreen> {
   }
 
   @override Widget build(BuildContext context) {
-    if (app == null) {
+    if (data == null) {
       platform.invokeMethod('getFlavor').then((flavor) {
         initPhoneAndUrl().then((_) {
           setState(() {