Screen wake (#565)

* Prevent screen turning off when scanning barcodes

- Close https://github.com/inventree/inventree-app/issues/492

* Update release notes

assets/release_notes.md

@@ -2,6 +2,8 @@
 ---
 
 - Improved barcode scanning with new scanning library
+- Prevent screen turning off when scanning barcodes
+- Improved support for Stock Item test results
 - Enhanced home-screen display using grid-view
 - Improvements for image uploading
 - Provide "upload image" shortcut on Purchase Order detail view

lib/barcode/camera_controller.dart

@@ -3,7 +3,7 @@ import "package:flutter/material.dart";
 import "package:flutter_tabler_icons/flutter_tabler_icons.dart";
 import "package:inventree/app_colors.dart";
 import "package:inventree/preferences.dart";
-
+import "package:wakelock_plus/wakelock_plus.dart";
 import "package:flutter_zxing/flutter_zxing.dart";
 
 import "package:inventree/l10.dart";
@@ -38,6 +38,13 @@ class _CameraBarcodeControllerState extends InvenTreeBarcodeControllerState {
   void initState() {
     super.initState();
     _loadSettings();
+    WakelockPlus.enable();
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+    WakelockPlus.disable();
   }
 
   /*

pubspec.lock

@@ -286,6 +286,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.1"
+  dbus:
+    dependency: transitive
+    description:
+      name: dbus
+      sha256: "365c771ac3b0e58845f39ec6deebc76e3276aa9922b0cc60840712094d9047ac"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.10"
   device_info_plus:
     dependency: "direct main"
     description:
@@ -1207,6 +1215,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "14.2.5"
+  wakelock_plus:
+    dependency: "direct main"
+    description:
+      name: wakelock_plus
+      sha256: bf4ee6f17a2fa373ed3753ad0e602b7603f8c75af006d5b9bdade263928c0484
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.8"
+  wakelock_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: wakelock_plus_platform_interface
+      sha256: "422d1cdbb448079a8a62a5a770b69baa489f8f7ca21aef47800c726d404f9d16"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.1"
   watcher:
     dependency: transitive
     description:

pubspec.yaml

@@ -40,6 +40,7 @@ dependencies:
   sembast: ^3.6.0                         # NoSQL data storage
   sentry_flutter: 8.9.0                   # Error reporting
   url_launcher: ^6.3.0                    # Open link in system browser
+  wakelock_plus: ^1.2.8                   # Prevent device from sleeping
 
 dev_dependencies:
   flutter_launcher_icons: ^0.14.1