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@@ -0,0 +1,92 @@
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+import 'package:fis_common/logger/logger.dart';
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+import 'package:flutter/material.dart';
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+import 'package:qr_code_scanner/qr_code_scanner.dart';
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+
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+class QRViewExample extends StatefulWidget {
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+ final Function(String) onPressed;
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+
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+ const QRViewExample({Key? key, required this.onPressed}) : super(key: key);
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+
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+ @override
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+ State<StatefulWidget> createState() => _QRViewExampleState();
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+}
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+
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+class _QRViewExampleState extends State<QRViewExample> {
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+ Barcode? result;
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+ QRViewController? controller;
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+ final GlobalKey qrKey = GlobalKey(debugLabel: 'QR');
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+
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+ @override
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+ Widget build(BuildContext context) {
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+ return Scaffold(
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+ appBar: AppBar(
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+ title: Text('扫一扫'),
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+ ),
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+ body: Column(
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+ children: <Widget>[
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+ Expanded(
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+ flex: 4,
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+ child: _buildQrView(
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+ context,
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+ ),
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+ ),
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+ ],
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+ ),
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+ );
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+ }
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+
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+ @override
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+ void dispose() {
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+ controller?.dispose();
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+ super.dispose();
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+ }
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+
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+ @override
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+ void reassemble() {
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+ super.reassemble();
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+ controller?.pauseCamera();
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+ controller?.resumeCamera();
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+ }
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+
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+ Widget _buildQrView(BuildContext context) {
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+ var scanArea = (MediaQuery.of(context).size.width < 400 ||
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+ MediaQuery.of(context).size.height < 400)
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+ ? 150.0
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+ : 300.0;
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+ return QRView(
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+ key: qrKey,
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+ onQRViewCreated: _onQRViewCreated,
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+ overlay: QrScannerOverlayShape(
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+ borderColor: Theme.of(context).colorScheme.primary,
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+ borderRadius: 10,
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+ borderLength: 30,
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+ borderWidth: 10,
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+ cutOutSize: scanArea,
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+ ),
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+ onPermissionSet: (ctrl, p) => _onPermissionSet(context, ctrl, p),
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+ );
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+ }
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+
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+ void _onPermissionSet(BuildContext context, QRViewController ctrl, bool p) {
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+ logger.i("QRViewExample _onPermissionSet $p");
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+ if (!p) {
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+ ScaffoldMessenger.of(context).showSnackBar(
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+ const SnackBar(
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+ content: Text(
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+ 'no Permission',
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+ ),
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+ ),
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+ );
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+ }
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+ }
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+
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+ void _onQRViewCreated(QRViewController controller) {
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+ setState(() {
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+ this.controller = controller;
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+ });
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+ controller.scannedDataStream.listen((event) async {
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+ controller.dispose();
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+ widget.onPressed.call(event.code!);
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+ });
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+ }
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+}
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