scan_preview 1.0.1

A flutter plugin for scan barcode. This plugin is based on PlatformView, which means you can customize the scanning UI freely. By the way, the framing UI is limited to the native API, and only a part [...]

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);
            },
          ),
        ),
      ),
    );
  }
}