fix the app drawer links

lib/screens/QR_reader_screen.dart

@@ -1,9 +1,11 @@
+import 'package:doctor_app_flutter/widgets/shared/app_scaffold_widget.dart';
 import 'package:flutter/material.dart';
 class QrReaderScreen extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(title: Text('QR Reader'),),
+    return AppScaffold(
+      appBarTitle: "QR Reader",
+      body: Container(),
     );
   }
 }

lib/screens/settings/settings_screen.dart

@@ -1,9 +1,11 @@
+import 'package:doctor_app_flutter/widgets/shared/app_scaffold_widget.dart';
 import 'package:flutter/material.dart';
 class SettingsScreen extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
-    return Container(
-      
+    return AppScaffold(
+      appBarTitle: "SETTINS",
+      body: Container(),
     );
   }
 }

lib/widgets/shared/app_drawer_widget.dart

@@ -1,8 +1,9 @@
-import 'package:doctor_app_flutter/config/size_config.dart';
-import 'package:doctor_app_flutter/widgets/shared/drawer_item_widget.dart';
-import 'package:doctor_app_flutter/widgets/shared/rounded_container_widget.dart';
+import 'package:doctor_app_flutter/routes.dart';
 import 'package:flutter/material.dart';
 
+import '../../config/size_config.dart';
+import '../../widgets/shared/drawer_item_widget.dart';
+import '../../widgets/shared/rounded_container_widget.dart';
 import 'app_texts_widget.dart';
 
 // OWNER : Ibrahim albitar
@@ -21,9 +22,7 @@ class _AppDrawerState extends State<AppDrawer> {
       child: Container(
         margin: EdgeInsets.only(top: SizeConfig.heightMultiplier * 9),
         child: Drawer(
-            child: ListView(
-              padding: EdgeInsets.zero,
-               children: <Widget>[
+            child: ListView(padding: EdgeInsets.zero, children: <Widget>[
           Container(
             height: SizeConfig.heightMultiplier * 30,
             child: DrawerHeader(
@@ -50,12 +49,21 @@ class _AppDrawerState extends State<AppDrawer> {
               ),
             ),
           ),
-          DrawerItem("My Schedule", Icons.table_chart),
-          DrawerItem("Settings", Icons.settings),
-          DrawerItem("QR Reader", Icons.search),
-        ]
-        )
-        ),
+          InkWell(
+            child: DrawerItem("My Schedule", Icons.table_chart),
+            onTap: () {
+              Navigator.of(context).pushNamed(MY_SCHEDULE);
+            },
+          ),
+          InkWell(child: DrawerItem("Settings", Icons.settings), onTap: (){
+              Navigator.of(context).pushNamed(SETTINGS);
+
+          },),
+          InkWell(child: DrawerItem("QR Reader", Icons.search),onTap:(){
+              Navigator.of(context).pushNamed(QR_READER);
+
+          } ,),
+        ])),
       ),
       width: SizeConfig.realScreenWidth * 0.55,
       margin: 0,