trcr/lib/qr_code_screen.dart

72 lines
1.9 KiB
Dart

import 'package:flutter/material.dart';
import 'package:mobile_scanner/mobile_scanner.dart';
import 'configuration_service.dart';
import 'l10n/app_localizations.dart';
class QrCodeScreen extends StatefulWidget {
const QrCodeScreen({super.key});
@override
State<QrCodeScreen> createState() => _QrCodeScreenState();
}
class _QrCodeScreenState extends State<QrCodeScreen> {
late final MobileScannerController _controller;
bool _scanned = false;
@override
void initState() {
super.initState();
_controller = MobileScannerController();
}
@override
void dispose() {
_controller.dispose();
super.dispose();
}
void _onDetect(BarcodeCapture capture) async {
if (_scanned) return;
final barcode = capture.barcodes.first;
final rawValue = barcode.rawValue;
if (rawValue == null) return;
final uri = Uri.tryParse(rawValue);
if (uri == null || uri.scheme.isEmpty) return;
_scanned = true;
await ConfigurationService.applyUri(uri);
if (mounted) Navigator.pop(context);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(AppLocalizations.of(context)!.settingsTitle),
actions: [
ValueListenableBuilder<MobileScannerState>(
valueListenable: _controller,
builder: (context, state, _) {
return IconButton(
icon: Icon(
state.torchState == TorchState.on
? Icons.flash_on
: Icons.flash_off,
),
onPressed: state.torchState == TorchState.unavailable
? null
: () => _controller.toggleTorch(),
);
},
),
],
),
body: MobileScanner(
controller: _controller,
fit: BoxFit.cover,
onDetect: _onDetect,
),
);
}
}