android - How to build a barcode generator?

Question

Closed. This question needs to be more focused. It is not currently accepting answers. question from:https://stackoverflow.com/questions/65873754/how-to-build-a-barcode-generator

Answer 1

Add import 'package:barcode/barcode.dart'; Library and then you can generate barcode like this.

import 'dart:io';

import 'package:barcode/barcode.dart';

void buildBarcode(
  Barcode bc,
  String data, {
  String filename,
  double width,
  double height,
  double fontHeight,
}) {
  /// Create the Barcode
  final svg = bc.toSvg(
    data,
    width: width ?? 200,
    height: height ?? 80,
    fontHeight: fontHeight,
  );

  // Save the image
  filename ??= bc.name.replaceAll(RegExp(r's'), '-').toLowerCase();
  File('$filename.svg').writeAsStringSync(svg);
}

void main() {
  buildBarcode(
    Barcode.code39(),
    'CODE 39',
  );

  buildBarcode(
    Barcode.code93(),
    'CODE 93',
  );

  buildBarcode(
    Barcode.code128(useCode128B: false, useCode128C: false),
    'BARCODE128',
    filename: 'code-128a',
  );

  buildBarcode(
    Barcode.code128(useCode128A: false, useCode128C: false),
    'Barcode 128',
    filename: 'code-128b',
  );

  buildBarcode(
    Barcode.code128(useCode128A: false, useCode128B: false),
    '0123456789',
    filename: 'code-128c',
  );

  buildBarcode(
    Barcode.gs128(),
    '(420)22345(56780000000001)',
  );

  buildBarcode(
    Barcode.itf14(),
    '1540014128876',
  );

  buildBarcode(
    Barcode.ean13(drawEndChar: true),
    '590123412345',
  );

  buildBarcode(
    Barcode.ean8(drawSpacers: true),
    '9638507',
    width: 100,
  );

  buildBarcode(
    Barcode.ean2(),
    '05',
    width: 40,
  );

  buildBarcode(
    Barcode.ean5(),
    '52495',
    width: 60,
  );

  buildBarcode(
    Barcode.isbn(drawEndChar: true),
    '978316148410',
  );

  buildBarcode(
    Barcode.upcA(),
    '98765432109',
  );

  buildBarcode(
    Barcode.upcE(),
    '06510000432',
    width: 100,
  );

  buildBarcode(
    Barcode.telepen(),
    'Telepen',
  );

  buildBarcode(
    Barcode.qrCode(),
    'QR-Code',
    height: 200,
  );

  buildBarcode(
    Barcode.codabar(explicitStartStop: true),
    'A1234-5678B',
  );

  buildBarcode(
    Barcode.pdf417(),
    'PDF417',
    height: 30,
  );

  buildBarcode(
    Barcode.dataMatrix(),
    'Datamatrix',
    height: 200,
  );

  buildBarcode(
    Barcode.aztec(),
    'Aztec',
    height: 200,
  );

  buildBarcode(
    Barcode.rm4scc(),
    'RM4SCC',
    height: 50,
    fontHeight: 30,
  );

  buildBarcode(
    Barcode.itf(),
    '987234',
  );
}