content: import 'dart:async';
  import 'dart:io';
  
  import 'package:flutter/material.dart';
  
  import 'package:qr_code_scanner_plus/qr_code_scanner_plus.dart';
  
  import 'package:fluffychat/l10n/l10n.dart';
  
  class QrScannerModal extends StatefulWidget {
    final void Function(String) onScan;
    const QrScannerModal({required this.onScan, super.key});
  
    @override
    QrScannerModalState createState() => QrScannerModalState();
  }
  
  class QrScannerModalState extends State<QrScannerModal> {
    final GlobalKey qrKey = GlobalKey(debugLabel: 'QR');
    QRViewController? controller;
  
    @override
    void reassemble() {
      super.reassemble();
      if (Platform.isAndroid) {
        controller!.pauseCamera();
      } else if (Platform.isIOS) {
        controller!.resumeCamera();
      }
    }
  
    @override
    Widget build(BuildContext context) {
      return Scaffold(
        appBar: AppBar(
          leading: IconButton(
            icon: const Icon(Icons.close_outlined),
            onPressed: Navigator.of(context).pop,
            tooltip: L10n.of(context).close,
          ),
          title: Text(L10n.of(context).scanQrCode),
        ),
        body: Stack(
          children: [
            QRView(
              key: qrKey,
              onQRViewCreated: _onQRViewCreated,
              overlay: QrScannerOverlayShape(
                borderColor: Theme.of(context).colorScheme.primary,
                borderRadius: 10,
                borderLength: 30,
                borderWidth: 8,
              ),
            ),
          ],
        ),
      );
    }
  
    void _onQRViewCreated(QRViewController controller) {
      this.controller = controller;
      // Workaround for QR Scanner is started in Pause mode
      // https://github.com/juliuscanute/qr_code_scanner/issues/538#issuecomment-1133883828
      if (Platform.isAndroid) {
        controller.pauseCamera();
      }
      controller.resumeCamera();
      late StreamSubscription sub;
      sub = controller.scannedDataStream.listen((scanData) {
        sub.cancel();
        Navigator.of(context).pop();
        final data = scanData.code;
        if (data != null) widget.onScan(data);
      });
    }
  }
  