finished flutter

src/flutter/lib/Screens/Home.dart

@@ -16,8 +16,8 @@ class Home extends StatelessWidget {
         Padding(padding: EdgeInsets.only(bottom: 80.0), child: Logo()),
         Button(
           callback: () {
-            // Navigator.pushNamed(context, '/scan');
-            Navigator.pushNamed(context, '/success/1');
+            Navigator.pushNamed(context, '/scan');
+            // Navigator.pushNamed(context, '/success/1');
           },
           text: "Scan",
         ),

src/flutter/lib/Screens/Scan.dart

@@ -1,27 +1,28 @@
-import 'dart:async';
+// import 'dart:async';
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
+import 'package:qr_mobile_vision/qr_camera.dart';
+// import 'package:flutter/services.dart';
 
-import 'package:barcode_scan/barcode_scan.dart';
+// import 'package:barcode_scan/barcode_scan.dart';
 
 import '../Components/BG.dart';
 import '../Components/SyncIcon.dart';
 
 class Scan extends StatelessWidget {
-  Future scan() async {
-    try {
-      String barcode = await BarcodeScanner.scan();
-      print('Success');
-      print(barcode);
-      Navigator.pushNamed(null, '/home');
-    } on PlatformException catch (e) {
-      if (e.code == BarcodeScanner.CameraAccessDenied)
-        print('The user did not grant the camera permission!');
-    } catch (e) {
-      print('Nope');
-      print(e);
-    }
-  }
+  // Future scan() async {
+  //   try {
+  //     String barcode = await BarcodeScanner.scan();
+  //     print('Success');
+  //     print(barcode);
+  //     Navigator.pushNamed(null, '/home');
+  //   } on PlatformException catch (e) {
+  //     if (e.code == BarcodeScanner.CameraAccessDenied)
+  //       print('The user did not grant the camera permission!');
+  //   } catch (e) {
+  //     print('Nope');
+  //     print(e);
+  //   }
+  // }
 
   @override
   Widget build(BuildContext context) => BG(
@@ -33,7 +34,16 @@ class Scan extends StatelessWidget {
             'Scanning...',
             style: TextStyle(fontWeight: FontWeight.bold),
           ),
-          SyncIcon()
+          SyncIcon(),
+          SizedBox(
+            width: 280.0,
+            height: 280.0,
+            child: new QrCamera(
+              qrCodeCallback: (code) {
+                Navigator.pushNamed(context, '/success/$code');
+              },
+            ),
+          )
         ],
       )));
 }

src/flutter/lib/Screens/Success.dart

@@ -10,8 +10,9 @@ class Success extends StatelessWidget {
   Success({@required this.result}) {
     final initializationSettings = InitializationSettings(
         AndroidInitializationSettings('app_icon'), IOSInitializationSettings());
-    final flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin()
-      ..initialize(initializationSettings);
+
+    final flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
+    flutterLocalNotificationsPlugin.initialize(initializationSettings);
 
     flutterLocalNotificationsPlugin.show(
       this.result,

src/flutter/lib/main_new.dart

@@ -0,0 +1,46 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:qr_reader/qr_reader.dart';
+
+void main() {
+  runApp(MaterialApp(
+    home: MyHomePage(),
+  ));
+}
+
+class MyHomePage extends StatefulWidget {
+  @override
+  createState() => _MyHomePageState();
+}
+
+class _MyHomePageState extends State<MyHomePage> {
+  Future<String> _barcodeString;
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: Center(
+          child: FutureBuilder<String>(
+              future: _barcodeString,
+              builder: (BuildContext context, AsyncSnapshot<String> snapshot) {
+                return Text(snapshot.data != null ? snapshot.data : '');
+              })),
+      floatingActionButton: FloatingActionButton(
+        onPressed: () {
+          setState(() {
+            _barcodeString = QRCodeReader()
+                .setAutoFocusIntervalInMs(200)
+                .setForceAutoFocus(true)
+                .setTorchEnabled(false)
+                .setHandlePermissions(true)
+                .setExecuteAfterPermissionGranted(true)
+                .scan();
+          });
+        },
+        tooltip: 'Reader the QRCode',
+        child: Icon(Icons.add_a_photo),
+      ),
+    );
+  }
+}