qr scanner initial

2026-01-13 13:10:54 +01:00
parent 435ea4d43f
commit 57bb288bcc
4 changed files with 123 additions and 4 deletions
@@ -0,0 +1,77 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_hooks/flutter_hooks.dart';
+import 'package:qr_code_scanner_plus/qr_code_scanner_plus.dart';
+import 'package:weblibre/utils/ui_helper.dart' as ui_helper;
+
+class QrScannerDialog extends HookWidget {
+  @override
+  Widget build(BuildContext context) {
+    final qrKey = useMemoized(() => GlobalKey(debugLabel: 'qr_scanner'));
+    final qrController = useState<QRViewController?>(null);
+
+    final flashState = useState(false);
+
+    useEffect(() {
+      StreamSubscription<Barcode>? sub;
+
+      if (qrController.value != null) {
+        sub = qrController.value!.scannedDataStream.listen((event) {
+          if (context.mounted) {
+            Navigator.pop(context, event);
+          }
+        });
+      }
+
+      return () {
+        unawaited(sub?.cancel());
+      };
+    }, [qrController.value]);
+
+    return Dialog.fullscreen(
+      child: Scaffold(
+        appBar: AppBar(
+          title: const Text('Scan code'),
+          actions: [
+            IconButton(
+              isSelected: flashState.value,
+              onPressed: () async {
+                if (qrController.value != null) {
+                  await qrController.value!.toggleFlash();
+
+                  flashState.value =
+                      await qrController.value!.getFlashStatus() ?? false;
+                }
+              },
+              icon: const Icon(Icons.flash_on),
+              selectedIcon: const Icon(Icons.flash_off),
+            ),
+            IconButton(
+              onPressed: () async {
+                await qrController.value?.flipCamera();
+              },
+              icon: const Icon(Icons.cameraswitch),
+            ),
+          ],
+        ),
+        body: SafeArea(
+          child: QRView(
+            key: qrKey,
+            onQRViewCreated: (controller) {
+              qrController.value = controller;
+            },
+            onPermissionSet: (controller, result) {
+              if (!result) {
+                ui_helper.showErrorMessage(
+                  context,
+                  'No Camera Permission granted',
+                );
+              }
+            },
+          ),
+        ),
+      ),
+    );
+  }
+}