barcode_widget

Barcode Widget for flutter.

This widget uses pub:barcode to generate any supported Barcodes.

Live example with Flutter Web

davbfr.github.io/dart_barcode/

Getting Started

In your flutter project add the dependency:

dependencies:
  ...
  barcode_widget:

For help getting started with Flutter, view the online documentation.

Usage example

Import barcode_widget.dart

import 'package:barcode_widget/barcode_widget.dart';

Use the widget directly

BarcodeWidget(
  barcode: Barcode.code128(),
  data: 'Hello Flutter',
);

To display an custom error message if the barcode is not valid, use:

BarcodeWidget(
  barcode: Barcode.ean13(),
  data: 'Hello',
  errorBuilder: (context, error) => Center(child: Text(error)),
);

Many layout options are available like: width, height, margin, padding, colors, etc.

To add a logo on top of a QrCode, use Flutter's composing abilities while increasing the error recovery density:

Stack(
  alignment: Alignment.center,
  children: [
    BarcodeWidget(
      barcode: Barcode.qrCode(
        errorCorrectLevel: BarcodeQRCorrectionLevel.high,
      ),
      data: 'https://pub-web.flutter-io.cn/packages/barcode_widget',
      width: 200,
      height: 200,
    ),
    Container(
      color: Colors.white,
      width: 60,
      height: 60,
      child: const FlutterLogo(),
    ),
  ],
)