mirror of
https://github.com/nisrulz/flutter-examples.git
synced 2025-07-07 19:46:32 +08:00
84 lines
2.5 KiB
Dart
84 lines
2.5 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:mobile_scanner/mobile_scanner.dart';
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import 'package:scan_qr_code/utils/qr_code_scanner.dart';
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import 'package:scan_qr_code/utils/scanner_box_border_painter.dart';
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void main() => runApp(const MyApp());
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class MyApp extends StatelessWidget {
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const MyApp({super.key});
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@override
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Widget build(BuildContext context) {
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return const MaterialApp(
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title: 'Code Scanner',
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home: MyHomePage(title: 'Code Scanner Demo'),
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);
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}
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}
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class MyHomePage extends StatefulWidget {
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const MyHomePage({super.key, required this.title});
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final String title;
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@override
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State<MyHomePage> createState() => _MyHomePageState();
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}
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class _MyHomePageState extends State<MyHomePage> {
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final MobileScannerController _mobileScannerController = MobileScannerController();
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late Function(Barcode barcode, MobileScannerArguments? args) _onDetect;
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bool _isScanning = true;
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@override
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void initState() {
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super.initState();
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_onDetect = (Barcode barcode, MobileScannerArguments? args) {
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_mobileScannerController.stop();
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showDialog(
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context: context,
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builder: (BuildContext context) {
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return AlertDialog(
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title: const Text('Code info'),
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content: Text(barcode.rawValue?.trim() ?? 'No data found', textAlign: TextAlign.center),
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actions: [TextButton(onPressed: () => Navigator.pop(context), child: const Text('OK'))],
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);
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}).then((value) {
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_mobileScannerController.start();
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setState(() {
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_isScanning = true;
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});
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});
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setState(() {
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_isScanning = false;
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});
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};
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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(title: Text(widget.title)),
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body: Center(
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child: SizedBox.square(
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dimension: MediaQuery.of(context).size.width - 48.0,
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child: Padding(
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padding: const EdgeInsets.all(2.5), // Required otherwise side edges hides under outside padding
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child: CustomPaint(
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foregroundPainter: ScannerBoxBorderPainter(borderColor: _isScanning ? Colors.black : Colors.green),
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child: Padding(
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padding: const EdgeInsets.all(2.5), // Required otherwise scanner hides under side edges
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child: QRCodeScanner(mobileScannerController: _mobileScannerController, allowDuplicates: false, onDetect: _onDetect),
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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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}
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