Using new qr code scanner - qr_code_scanner

android/app/build.gradle

@@ -23,6 +23,7 @@ if (flutterVersionName == null) {
 
 apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+apply plugin: 'kotlin-android'
 
 android {
     compileSdkVersion 28
@@ -38,7 +39,7 @@ android {
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "inventree.inventree_app"
-        minSdkVersion 21
+        minSdkVersion 25
         targetSdkVersion 29
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
@@ -65,4 +66,5 @@ dependencies {
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
     androidTestImplementation 'com.android.support:multidex:1.0.0'
     implementation 'androidx.appcompat:appcompat:1.0.0'
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
 }

android/app/src/main/AndroidManifest.xml

@@ -30,4 +30,8 @@
             </intent-filter>
         </activity>
     </application>
+
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.CAMERA"/>
+    <uses-permission android:name="android.permission.MICROPHONE"/>
 </manifest>

android/app/src/profile/AndroidManifest.xml

@@ -4,4 +4,6 @@
          to allow setting breakpoints, to provide hot reload, etc.
     -->
     <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.CAMERA"/>
+    <uses-permission android:name="android.permission.MICROPHONE"/>
 </manifest>

android/build.gradle

@@ -1,4 +1,7 @@
 buildscript {
+
+    ext.kotlin_version = '1.3.61'
+
     repositories {
         google()
         jcenter()
@@ -6,6 +9,7 @@ buildscript {
 
     dependencies {
         classpath 'com.android.tools.build:gradle:3.2.1'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
 

ios/Flutter/flutter_export_environment.sh

@@ -5,6 +5,7 @@ export "FLUTTER_APPLICATION_PATH=C:\inventree-app"
 export "FLUTTER_TARGET=lib\main.dart"
 export "FLUTTER_BUILD_DIR=build"
 export "SYMROOT=${SOURCE_ROOT}/../build\ios"
+export "OTHER_LDFLAGS=$(inherited) -framework Flutter"
 export "FLUTTER_FRAMEWORK_DIR=C:\flutter\bin\cache\artifacts\engine\ios"
 export "FLUTTER_BUILD_NAME=1.0.0"
 export "FLUTTER_BUILD_NUMBER=1"

lib/barcode.dart

@@ -3,6 +3,10 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 
 //import 'package:qr_utils/qr_utils.dart';
+//import 'package:flutter_barcode_scanner/flutter_barcode_scanner.dart';
+//import 'package:barcode_scan/barcode_scan.dart';
+
+import 'package:qr_code_scanner/qr_code_scanner.dart';
 
 import 'package:InvenTree/inventree/stock.dart';
 import 'package:InvenTree/inventree/part.dart';
@@ -16,16 +20,111 @@ import 'package:InvenTree/widget/stock_detail.dart';
 
 import 'dart:convert';
 
+
+class InvenTreeQRView extends StatefulWidget {
+
+  InvenTreeQRView({Key key}) : super(key: key);
+
+  @override
+  State<StatefulWidget> createState() => _QRViewState();
+}
+
+
+class _QRViewState extends State<InvenTreeQRView> {
+
+  QRViewController _controller;
+
+  BuildContext context;
+
+  _QRViewState() : super();
+
+  final GlobalKey qrKey = GlobalKey(debugLabel: 'QR');
+
+  Future<void> processBarcode(String barcode) async {
+    if (barcode == null || barcode.isEmpty) {
+      return;
+    }
+
+    print("Scanned: ${barcode}");
+    showProgressDialog(context, "Querying server", "Sending barcode data to server");
+
+    InvenTreeAPI().post("barcode/", body: {"barcode": barcode}).then((var response) {
+      hideProgressDialog(context);
+
+      print("Response:");
+      print(response.body);
+    }).timeout(
+        Duration(seconds: 5)
+    ).catchError((error) {
+      hideProgressDialog(context);
+      showErrorDialog(context, "Error", error.toString());
+      return;
+    });
+
+  }
+
+  void _onViewCreated(QRViewController controller) {
+    _controller = controller;
+    controller.scannedDataStream.listen((scandata) {
+      processBarcode(scandata);
+    });
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+
+    // Save the context for later on!
+    this.context = context;
+
+    return Scaffold(
+      body: Column(
+        children: <Widget>[
+          Expanded(
+            flex: 4,
+            child: QRView(
+              key: qrKey,
+              onQRViewCreated: _onViewCreated,
+              overlay: QrScannerOverlayShape(
+                borderColor: Colors.red,
+                borderRadius: 10,
+                borderLength: 30,
+                borderWidth: 10,
+                cutOutSize: 300,
+              ),
+            )
+          )
+        ],
+      )
+    );
+  }
+}
+
+
 Future<void> scanQrCode(BuildContext context) async {
 
+  Navigator.push(context, MaterialPageRoute(builder: (context) => InvenTreeQRView()));
+
   return;
   /*
-  QrUtils.scanQR.then((String barcode) {
+  print("Scanning");
+  String barcode = await FlutterBarcodeScanner.scanBarcode("#F00", "Cancel", false, ScanMode.DEFAULT);
+  print("and, DONE");
+  if (barcode == null || barcode.isEmpty) {
+    return;
+  }
 
   print("Scanned: $barcode");
 
   showProgressDialog(context, "Querying Server", "Sending barcode data to server");
+  */
 
+  String barcode = null;
   /*
    * POST the scanned barcode data to the server.
    * It is the responsibility of the server to validate and sanitize the barcode data,
@@ -94,8 +193,6 @@ Future<void> scanQrCode(BuildContext context) async {
     print("body: ${body.toString()}");
 
   });
-  });
-  */
 }
 
 void _handleBarcode(BuildContext context, Map<String, dynamic> data) {

pubspec.lock

@@ -7,28 +7,28 @@ packages:
       name: archive
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.11"
+    version: "2.0.13"
   args:
     dependency: transitive
     description:
       name: args
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.2"
+    version: "1.6.0"
   async:
     dependency: transitive
     description:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "2.4.1"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "2.0.0"
   camera:
     dependency: "direct main"
     description:
@@ -42,14 +42,14 @@ packages:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.2"
+    version: "1.1.3"
   collection:
     dependency: transitive
     description:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.11"
+    version: "1.14.12"
   convert:
     dependency: transitive
     description:
@@ -63,7 +63,7 @@ packages:
       name: crypto
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.3"
+    version: "2.1.4"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -162,7 +162,7 @@ packages:
       name: image
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.4"
+    version: "2.1.12"
   image_picker:
     dependency: "direct main"
     description:
@@ -246,7 +246,7 @@ packages:
       name: pedantic
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0+1"
+    version: "1.9.0"
   petitparser:
     dependency: transitive
     description:
@@ -275,13 +275,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "5.2.0"
+  qr_code_scanner:
+    dependency: "direct main"
+    description:
+      name: qr_code_scanner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.13"
   quiver:
     dependency: transitive
     description:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.5"
+    version: "2.1.3"
   sentry:
     dependency: "direct main"
     description:
@@ -328,7 +335,7 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.5"
+    version: "1.7.0"
   stack_trace:
     dependency: transitive
     description:
@@ -363,7 +370,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.11"
+    version: "0.2.15"
   typed_data:
     dependency: transitive
     description:
@@ -391,7 +398,7 @@ packages:
       name: xml
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.5.0"
+    version: "3.6.1"
   yaml:
     dependency: transitive
     description:
@@ -400,5 +407,5 @@ packages:
     source: hosted
     version: "2.2.1"
 sdks:
-  dart: ">=2.4.0 <3.0.0"
+  dart: ">=2.6.0 <3.0.0"
   flutter: ">=1.12.13+hotfix.5 <2.0.0"

pubspec.yaml

@@ -22,20 +22,20 @@ dependencies:
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^0.1.2
+  cupertino_icons: ^0.1.3
   http: ^0.12.1
-  shared_preferences: ^0.5.3+1
+  shared_preferences: ^0.5.7
 
   flutter_advanced_networkimage: ^0.7.0   # Pull image from network or cache
-  preferences: ^5.1.0                     # Persistent settings storage
+  preferences: ^5.2.0                     # Persistent settings storage
-  #qr_utils: ^0.1.4                        # Barcode / QR-code support
+  #barcode_scan: ^3.0.1                    # Barcode / QR code scanning
-  package_info: ^0.4.0+16                 # App information introspection
+  qr_code_scanner: ^0.0.13
+  package_info: ^0.4.0                    # App information introspection
   font_awesome_flutter: ^8.8.1            # FontAwesome icon set
   flutter_speed_dial: ^1.2.5              # FAB menu elements
   sentry: ^3.0.1                          # Error reporting
   flutter_typeahead: ^1.8.1               # Auto-complete input field
   image_picker: ^0.6.6                    # Select or take photos
-  #flutter_form_builder:
 
   camera:
   path_provider: