zxing_widget

ZXing Widget(Dart)

A Barcode Generator Widget that can be embedded inside flutter. It uses zxing-dart for all platforms.

ZXing Dart
ZXing Widget
ZXing Scanner

Features

• ✅ QRCode
• ✅ PDF417 code
• ✅ DataMatrix code
• ✅ AZTec code
• ✅ OneDemension code
• ✅ Paint callback
• ✅ Customize color
• ✅ to image

Preview

Getting started

flutter pub add zxing_widget

Usage

See /example folder.

Render a qrcode

BarcodeWidget(
    QrcodePainter(
        'qrcode data',
        errorCorrectionLevel: ErrorCorrectionLevel.H,
        foregroundColor: Colors.blue,
    ),
    size: const Size(200, 200),
),

Generate an image

import 'dart:ui' as ui;

final ui.Image image = QrcodePainter(
        'qrcode data',
        errorCorrectionLevel: ErrorCorrectionLevel.H,
        foregroundColor: Colors.blue,
    ).toImage(const Size(200, 200));

// binary png data
final binData = await image.toByteData(format: ui.ImageByteFormat.png);

Additional information

This package depends on zxing_lib witch is a pure dart port of ZXing.