barcode

Description:

barcode

barcode #
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);
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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);
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Supported barcodes #
The following barcode images are SVG. The proper rendering, especially text, depends on the browser implementation and availability of the fonts.
1D Barcodes #
Code 39

Code 93

Code 128 A

Code 128 B

Code 128 C

GS1-128

Interleaved 2 of 5 (ITF)

ITF-14

ITF-16

EAN 13

EAN 8

EAN 2

EAN 5

ISBN

UPC-A

UPC-E

Telepen

Codabar

Height Modulated Barcodes #
RM4SCC

2D Barcodes #
QR-Code

PDF417

Data Matrix

Aztec