From 79cc43da0d723c7572ec6dbe70a0c3d3b801278b Mon Sep 17 00:00:00 2001
From: r4khul <blackempire9177@gmail.com>
Date: Wed, 4 Feb 2026 13:15:24 +0530
Subject: [PATCH 1/2] Add QR scanner torch control using
 MobileScannerController

---
 lib/qr_code_screen.dart | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/lib/qr_code_screen.dart b/lib/qr_code_screen.dart
index e78131d..8dc8f49 100644
--- a/lib/qr_code_screen.dart
+++ b/lib/qr_code_screen.dart
@@ -12,8 +12,21 @@ class QrCodeScreen extends StatefulWidget {
 }
 
 class _QrCodeScreenState extends State<QrCodeScreen> {
+  late final MobileScannerController _controller;
   bool _scanned = false;
 
+  @override
+  void initState() {
+    super.initState();
+    _controller = MobileScannerController();
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
   void _onDetect(BarcodeCapture capture) async {
     if (_scanned) return;
     final barcode = capture.barcodes.first;
@@ -31,8 +44,27 @@ class _QrCodeScreenState extends State<QrCodeScreen> {
     return Scaffold(
       appBar: AppBar(
         title: Text(AppLocalizations.of(context)!.settingsTitle),
+        actions: [
+          ValueListenableBuilder<MobileScannerState>(
+            valueListenable: _controller,
+            builder: (context, state, _) {
+              final torchState = state.torchState;
+              return IconButton(
+                icon: Icon(
+                  torchState == TorchState.on
+                      ? Icons.flash_on
+                      : Icons.flash_off,
+                ),
+                onPressed: torchState == TorchState.unavailable
+                    ? null
+                    : () => _controller.toggleTorch(),
+              );
+            },
+          ),
+        ],
       ),
       body: MobileScanner(
+        controller: _controller,
         fit: BoxFit.cover,
         onDetect: _onDetect,
       ),

From fc640eade09a5d8720f4be45e84175bdefc8c423 Mon Sep 17 00:00:00 2001
From: r4khul <blackempire9177@gmail.com>
Date: Wed, 4 Feb 2026 20:24:10 +0530
Subject: [PATCH 2/2] Remove torchState variable in ValueListenableBuilder

---
 lib/qr_code_screen.dart | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/qr_code_screen.dart b/lib/qr_code_screen.dart
index 8dc8f49..05f9295 100644
--- a/lib/qr_code_screen.dart
+++ b/lib/qr_code_screen.dart
@@ -48,14 +48,13 @@ class _QrCodeScreenState extends State<QrCodeScreen> {
           ValueListenableBuilder<MobileScannerState>(
             valueListenable: _controller,
             builder: (context, state, _) {
-              final torchState = state.torchState;
               return IconButton(
                 icon: Icon(
-                  torchState == TorchState.on
+                  state.torchState == TorchState.on
                       ? Icons.flash_on
                       : Icons.flash_off,
                 ),
-                onPressed: torchState == TorchState.unavailable
+                onPressed: state.torchState == TorchState.unavailable
                     ? null
                     : () => _controller.toggleTorch(),
               );