import 'dart:async'; import 'dart:io'; import 'package:flutter/material.dart'; import 'package:flutter_gen/gen_l10n/l10n.dart'; import 'package:qr_code_scanner/qr_code_scanner.dart'; import 'package:fluffychat/utils/url_launcher.dart'; class QrScannerModal extends StatefulWidget { const QrScannerModal({Key? key}) : super(key: key); @override _QrScannerModalState createState() => _QrScannerModalState(); } class _QrScannerModalState extends State { 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).primaryColor, 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(); UrlLauncher(context, scanData.code).openMatrixToUrl(); }); } @override void dispose() { controller?.dispose(); super.dispose(); } }