taken from version: 2.2.9

copied due to outdated dependencies.

barcode

@ruud

Updated dependencies and updated analysis options. Fixed code.

Barcode generation library for Dart that can generate generic drawing operations for any backend.

If you are looking to print barcodes, use pub:pdf.
If you want to display barcodes in a Flutter application, use pub:barcode_widget.
To generate SVG barcodes see the example tab.
To generate barcodes in images, use pub:barcode_image.
Live example with Flutter Web: https://davbfr.github.io/dart_barcode/

They all use this library to generate the drawing operations.

Interactive demo: https://davbfr.github.io/dart_barcode/

This library is the base to create flutter widgets or pdf barcodes. It depends only on dart with no platform-dependent implementation.

Only two basic drawing primitives are required:

Filled rectangle to draw the bars
Text drawing to display the code in full-text

Generate barcodes

// Create a DataMatrix barcode
final dm = Barcode.dataMatrix();

// Generate a SVG with "Hello World!"
final svg = bc.toSvg('Hello World!', width: 200, height: 200);

// Save the image
await File('barcode.svg').writeAsString(svg);

Create a WIFI configuration barcode:

// Create a DataMatrix barcode
final dm = Barcode.dataMatrix();

final me = MeCard.wifi(
  ssid: 'Wifi Name',
  password: 'password',
);

// Generate a SVG with a barcode that configures the wifi access
final svg = bc.toSvg(me.toString(), width: 200, height: 200);

// Save the image
await File('wifi.svg').writeAsString(svg);