scan_preview 1.0.0

A flutter plugin for scan barcode.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:scan_preview/scan_preview_widget.dart';
import 'package:flutter/foundation.dart';

void main() => runApp(MaterialApp(
      home: MyApp(),
    ));

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _result = '';

  @override
  void initState() {
    super.initState();
    _requestPermission();
  }

  _requestPermission() async {
    await Permission.camera.request();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Scan barcode example'),
      ),
      body: Center(
        child: Column(
          children: <Widget>[
            RaisedButton(
              child: Text('start scan'),
              onPressed: () async {
                final result = await Navigator.push(this.context,
                    MaterialPageRoute(builder: (context) => ScanPreviewPage()));
                setState(() {
                  _result = result;
                });
              },
            ),
            Text('scanl result: $_result')
          ],
        ),
      ),
    );
  }
}

class ScanPreviewPage extends StatefulWidget {
  @override
  _ScanPreviewPageState createState() => _ScanPreviewPageState();
}

class _ScanPreviewPageState extends State<ScanPreviewPage> {
  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Scan barcode example'),
        ),
        body: SizedBox(
          width: double.infinity,
          height: double.infinity,
          child: ScanPreviewWidget(
            onScanResult: (result) {
              debugPrint('scan result: $result');
              Navigator.pop(context, result);
            },
          ),
        ),
      ),
    );
  }
}