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cloudsolutions-atoms/lib/views/widgets/qr/scan_qr.dart

179 lines
4.8 KiB
Dart

import 'dart:io';
import 'package:flutter/material.dart';
import 'package:google_api_availability/google_api_availability.dart';
import 'package:mobile_scanner/mobile_scanner.dart';
import 'package:qr_code_scanner_plus/qr_code_scanner_plus.dart';
import 'package:test_sa/extensions/int_extensions.dart';
import 'package:test_sa/extensions/text_extensions.dart';
import '../buttons/app_icon_button.dart';
class ScanQr extends StatefulWidget {
const ScanQr({Key? key}) : super(key: key);
@override
State<ScanQr> createState() => _ScanQrState();
}
class _ScanQrState extends State<ScanQr> {
MobileScannerController? mobileController;
QRViewController? qrController;
final GlobalKey qrKey = GlobalKey(debugLabel: 'QR_scanner');
bool _scanDone = false;
bool _isHuawei = false;
bool _isLoading = true;
@override
void initState() {
super.initState();
_initScanner();
}
Future<void> _initScanner() async {
_isHuawei = Platform.isAndroid && !(await isGoogleServicesAvailable());
if (!_isHuawei) {
mobileController = MobileScannerController(
detectionSpeed: DetectionSpeed.noDuplicates,
formats: [],
returnImage: false,
torchEnabled: false,
invertImage: false,
autoZoom: true,
);
}
if (mounted) {
setState(() {
_isLoading = false;
});
}
}
Future<bool> isGoogleServicesAvailable() async {
GooglePlayServicesAvailability availability = await GoogleApiAvailability.instance.checkGooglePlayServicesAvailability();
String status = availability.toString().split('.').last;
return status == "success";
}
void _onQrViewCreated(QRViewController controller) {
qrController = controller;
controller.scannedDataStream.listen((scanData) {
if (_scanDone) return;
if (scanData.code == null || scanData.code!.isEmpty) return;
_scanDone = true;
Navigator.of(context).pop(scanData.code);
});
}
@override
void dispose() {
mobileController?.dispose();
qrController?.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
if (_isLoading) {
return const Scaffold(
body: Center(child: CircularProgressIndicator()),
);
}
return Scaffold(
body: Stack(
children: [
_isHuawei
? QRView(
key: qrKey,
onQRViewCreated: _onQrViewCreated,
overlay: QrScannerOverlayShape(
borderColor: Colors.white,
borderRadius: 12,
borderLength: 30,
borderWidth: 4,
cutOutSize: MediaQuery.of(context).size.width * 0.7,
),
)
: MobileScanner(
controller: mobileController,
onDetect: (capture) {
if (_scanDone) return;
final barcodes = capture.barcodes;
if (barcodes.isEmpty) return;
final value = barcodes.first.rawValue;
if (value == null || value.isEmpty) return;
_scanDone = true;
Navigator.of(context).pop(value);
},
),
_ScannerOverlay(
// scanDone: _scanDone,
onBack: () {
if (!_scanDone) _scanDone = true;
Navigator.of(context).pop();
},
showSvgOverlay: !_isHuawei,
),
],
),
);
}
}
class _ScannerOverlay extends StatelessWidget {
final VoidCallback onBack;
final bool showSvgOverlay;
const _ScannerOverlay({
Key? key,
required this.onBack,
this.showSvgOverlay = true,
}) : super(key: key);
@override
Widget build(BuildContext context) {
return SizedBox.expand(
child: Stack(
children: [
if (showSvgOverlay)
Center(
child: 'scan'.toSvgAsset(
height: 283.toScreenHeight.toInt(),
width: 283.toScreenWidth.toInt(),
fit: BoxFit.fitHeight,
),
),
Positioned(
bottom: 80, // adjust if needed
left: 0,
right: 0,
child: Center(
child: Text(
"Point camera at a QR code to scan",
style: TextStyle(
color: Colors.white.withOpacity(0.8),
fontSize: 16,
),
),
),
),
SafeArea(
child: Padding(
padding: const EdgeInsets.all(12.0),
child: AIconButton(
iconData: Icons.arrow_back,
onPressed: onBack,
),
),
),
],
),
);
}
}