barcode_parser 0.1.0
barcode_parser: ^0.1.0 copied to clipboard

A Flutter package to parse barcodes.

Barcode Parser #

The objective of this package is to provide a mechanism to parse decoded values from barcodes into dart objects.

This is not a barcode scanner, in order to use this package you should previously have scanned and decoded a barcode.

Features: #

The package can parse barcodes containing the following data:

  • URLs
  • Wifi credentials
  • Geo location
  • Email
  • SMS
  • Phone
  • Driver license
  • Products (ISBN, EAN, UPC...)
  • Plain text

Pending work: #

The following types can be parsed and you will know their type but the parsing of their values is not currently supported:

  • Contact information (VCard)
  • Calendar event (VEvent)

Sample usage: #

String barcodeDecodedValue = 'This is the content of a barcode decoded to a String.';
    
BarcodeParser barcodeParser = BarcodeParser();
Barcode barcode = barcodeParser.parse(barcodeDecodedValue);

Once the code is parsed you will obtain an instance of the abstract class Barcode. You can then cast it to the appropriate type to obtain the values:

if (barcode.valueType == BarcodeValueType.url) {
  BarcodeUrl barcodeUrl = barcode as BarcodeUrl;
  print(barcodeUrl.url);
}

You can create a complete switch to detect all possible values:

switch (barcode.valueType) {
  case BarcodeValueType.url:
    BarcodeUrl barcodeUrl = barcode as BarcodeUrl;
    break;
  case BarcodeValueType.wifi:
    BarcodeWifi barcodeWifi = barcode as BarcodeWifi;
    break;
  case BarcodeValueType.contactInfo:
    BarcodeContactInfo barcodeContactInfo = barcode as BarcodeContactInfo;
    break;
  case BarcodeValueType.location:
    BarcodeLocation barcodeLocation = barcode as BarcodeLocation;
    break;
  case BarcodeValueType.email:
    BarcodeEmail barcodeEmail = barcode as BarcodeEmail;
    break;
  case BarcodeValueType.sms:
    BarcodeSms barcodeSms = barcode as BarcodeSms;
    break;
  case BarcodeValueType.calendarEvent:
    BarcodeCalendarEvent barcodeCalendarEvent =
        barcode as BarcodeCalendarEvent;
    break;
  case BarcodeValueType.phone:
    BarcodePhone barcodePhone = barcode as BarcodePhone;
    break;
  case BarcodeValueType.driverLicense:
    BarcodeDriverLicense barcodeDriverLicense =
        barcode as BarcodeDriverLicense;
    break;
  case BarcodeValueType.product:
    BarcodeProduct barcodeProduct = barcode as BarcodeProduct;
    break;
  case BarcodeValueType.text:
    BarcodeText barcodeText = barcode as BarcodeText;
    break;
  default:
    break;
}

State of the package #

This package is in an early stage, though it's currently used in production.

If you want to contribute, pull requests are welcome.

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Publisher

reprom.io

A Flutter package to parse barcodes.

Repository (GitHub)
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Documentation

API reference

License

Apache-2.0 (LICENSE)

Dependencies

flutter, validators

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