qrcode_barcode_scanner 3.0.3

Plugins to manage the reading of QR code or barcode from an external device as a keyboard.

QRCode & Barcode Scanner

Overview

The QRCode & Barcode Scanner plugin is designed to manage QR and Barcode scanning from external devices, offering a streamlined API for integration in Android applications.

Important: This package currently supports Android only.

Features

• Simple Integration: Use the QrcodeBarcodeScanner class to easily handle scan events.
• Customizable Callbacks: Register custom callback functions to handle scanned data in real-time.
• Android Only: This plugin is developed with Android compatibility in mind.
• Tested Devices: Supports external scanning devices such as Sunmi Blink.

Installation

Add the following dependency in your pubspec.yaml file:

flutter pub add qrcode_barcode_scanner

Usage Example

Here is a simple example of how to use the QrcodeBarcodeScanner:

import 'package:qrcode_barcode_scanner/qrcode_barcode_scanner.dart';

class MyScannerApp extends StatefulWidget {
  @override
  _MyScannerAppState createState() => _MyScannerAppState();
}

class _MyScannerAppState extends State<MyScannerApp> {
  String? _scanValue;

  @override
  void initState() {
    super.initState();
    QrcodeBarcodeScanner(
      onScannedCallback: (String value) {
        setState(() {
          _scanValue = value;
        });
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text("QR & Barcode Scanner")),
      body: Center(
        child: Text(_scanValue ?? "Waiting for scan..."),
      ),
    );
  }
}

API Documentation

Class: QrcodeBarcodeScanner

The QrcodeBarcodeScanner class is the core component of this plugin. It allows you to configure and manage barcode and QR code scanning events.

Constructor:

QrcodeBarcodeScanner({
  required ScannedCallback onScannedCallback,
});

Properties:

• onScannedCallback: A callback function that is triggered when a scan is successful. Receives the scanned value as a string.

Tested Devices

This plugin has been tested with the following devices:

• Sunmi Blink

Additional Resources

For more detailed documentation and advanced use cases, check out the Wiki.

Changelog

Check out the Changelog for details on recent updates.

Contributing

Want to contribute? Check out the Contribution Guide to get started!

License

This project is licensed under the MIT License. See the LICENSE file for details.