Add qr_utils barcode scanner

.flutter-plugins-dependencies

@@ -1 +1 @@
-{"_info":"// This is a generated file; do not edit or check into version control.","dependencyGraph":[{"name":"shared_preferences","dependencies":["shared_preferences_macos","shared_preferences_web"]},{"name":"shared_preferences_macos","dependencies":[]},{"name":"shared_preferences_web","dependencies":[]}]}
+{"_info":"// This is a generated file; do not edit or check into version control.","dependencyGraph":[{"name":"qr_utils","dependencies":[]},{"name":"shared_preferences","dependencies":["shared_preferences_macos","shared_preferences_web"]},{"name":"shared_preferences_macos","dependencies":[]},{"name":"shared_preferences_web","dependencies":[]}]}

lib/main.dart

@@ -3,7 +3,8 @@ import 'package:InvenTree/widget/location_display.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:shared_preferences/shared_preferences.dart';
-// import 'package:preferences/preferences.dart';
+
+import 'package:qr_utils/qr_utils.dart';
 
 import 'settings.dart';
 import 'api.dart';
@@ -113,6 +114,12 @@ class _MyHomePageState extends State<MyHomePage> {
     Navigator.push(context, MaterialPageRoute(builder: (context) => CategoryDisplayWidget(null)));
   }
 
+  void _scanCode() async {
+    QrUtils.scanQR.then((String result) {
+      print("Scanned: $result");
+    });
+  }
+
   void _showStock() {
     Navigator.push(context, MaterialPageRoute(builder: (context) => LocationDisplayWidget(null)));
   }
@@ -151,6 +158,7 @@ class _MyHomePageState extends State<MyHomePage> {
               new Divider(),
               new ListTile(
                 title: new Text("Scan"),
+                onTap: _scanCode,
               ),
               new ListTile(
                 title: new Text("Parts"),

pubspec.lock

@@ -149,6 +149,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "5.1.0"
+  qr_utils:
+    dependency: "direct main"
+    description:
+      name: qr_utils
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.4"
   quiver:
     dependency: transitive
     description:

pubspec.yaml

@@ -28,6 +28,8 @@ dependencies:
 
   preferences: ^5.1.0
 
+  qr_utils: ^0.1.4
+
 dev_dependencies:
   flutter_test:
     sdk: flutter