From 5ebcfac0f01e064f383926595583d6ee5391d6dc Mon Sep 17 00:00:00 2001
From: r4khul <blackempire9177@gmail.com>
Date: Thu, 5 Feb 2026 01:34:39 +0530
Subject: [PATCH 1/2] Improve permission denied error handling by providing
 direct access to app settings

---
 lib/qr_code_screen.dart | 31 +++++++++++++++++++++++++++++++
 pubspec.lock            |  8 ++++++++
 pubspec.yaml            |  1 +
 3 files changed, 40 insertions(+)

diff --git a/lib/qr_code_screen.dart b/lib/qr_code_screen.dart
index 05f9295..31f7fb8 100644
--- a/lib/qr_code_screen.dart
+++ b/lib/qr_code_screen.dart
@@ -1,3 +1,4 @@
+import 'package:app_settings/app_settings.dart';
 import 'package:flutter/material.dart';
 import 'package:mobile_scanner/mobile_scanner.dart';
 
@@ -66,6 +67,36 @@ class _QrCodeScreenState extends State<QrCodeScreen> {
         controller: _controller,
         fit: BoxFit.cover,
         onDetect: _onDetect,
+        errorBuilder: (context, error) {
+          return Center(
+            child: Padding(
+              padding: const EdgeInsets.all(24.0),
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  const Icon(Icons.videocam_off_outlined, size: 64),
+                  const SizedBox(height: 16),
+                  Text(
+                    error.errorCode == MobileScannerErrorCode.permissionDenied
+                        ? "Camera Permission Has Been Denied"
+                        : error.errorDetails?.message ?? "Camera Error",
+                    textAlign: TextAlign.center,
+                    style: Theme.of(context).textTheme.bodyLarge,
+                  ),
+                  const SizedBox(height: 24),
+                  FilledButton.icon(
+                    onPressed:
+                        () => AppSettings.openAppSettings(
+                          type: AppSettingsType.settings,
+                        ),
+                    icon: const Icon(Icons.settings),
+                    label: Text("Open Settings"),
+                  ),
+                ],
+              ),
+            ),
+          );
+        },
       ),
     );
   }
diff --git a/pubspec.lock b/pubspec.lock
index 4ba9485..f750490 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -41,6 +41,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.4"
+  app_settings:
+    dependency: "direct main"
+    description:
+      name: app_settings
+      sha256: "64d50e666fd96ae90301bf71205f05019286f940ad6f5fed3d1be19c6af7546a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.0"
   archive:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 42d28b8..1dbb912 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -25,6 +25,7 @@ dependencies:
   mobile_scanner: ^7.1.4
   flutter_secure_storage: ^10.0.0
   app_links: ^7.0.0
+  app_settings: ^7.0.0
 
 dev_dependencies:
   flutter_test:

From 6d0ed737dda9f57850ece294b53691d26fcbd0f0 Mon Sep 17 00:00:00 2001
From: r4khul <blackempire9177@gmail.com>
Date: Tue, 10 Feb 2026 23:45:06 +0530
Subject: [PATCH 2/2] Simplfy errorBuilder widget with pre-existing  localized
 strings

---
 lib/qr_code_screen.dart | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/lib/qr_code_screen.dart b/lib/qr_code_screen.dart
index 31f7fb8..b8ae4b0 100644
--- a/lib/qr_code_screen.dart
+++ b/lib/qr_code_screen.dart
@@ -56,8 +56,8 @@ class _QrCodeScreenState extends State<QrCodeScreen> {
                       : Icons.flash_off,
                 ),
                 onPressed: state.torchState == TorchState.unavailable
-                    ? null
-                    : () => _controller.toggleTorch(),
+                        ? null
+                        : () => _controller.toggleTorch(),
               );
             },
           ),
@@ -74,23 +74,15 @@ class _QrCodeScreenState extends State<QrCodeScreen> {
               child: Column(
                 mainAxisSize: MainAxisSize.min,
                 children: [
-                  const Icon(Icons.videocam_off_outlined, size: 64),
-                  const SizedBox(height: 16),
-                  Text(
-                    error.errorCode == MobileScannerErrorCode.permissionDenied
-                        ? "Camera Permission Has Been Denied"
-                        : error.errorDetails?.message ?? "Camera Error",
-                    textAlign: TextAlign.center,
-                    style: Theme.of(context).textTheme.bodyLarge,
-                  ),
-                  const SizedBox(height: 24),
-                  FilledButton.icon(
+                  Icon(Icons.videocam_off_outlined, size: 120),
+                  Text(AppLocalizations.of(context)!.disabledValue),
+                  SizedBox(height: 24,),
+                  FilledButton.tonal(
                     onPressed:
                         () => AppSettings.openAppSettings(
                           type: AppSettingsType.settings,
                         ),
-                    icon: const Icon(Icons.settings),
-                    label: Text("Open Settings"),
+                    child: Text(AppLocalizations.of(context)!.settingsTitle),
                   ),
                 ],
               ),