Qr: Create and read barcodes offline

1. Introduction

This App Inventor extension enables offline barcode creation and reading using the robust Zxing library. Effortlessly generate and scan various barcode formats without the need for internet connectivity. Enhance your app’s functionality with reliable and efficient barcode processing capabilities.

Latest Version: 5.3
Released:  March 21, 2020
Last Updated:  June 11, 2024

2. Blocks

3. Documentation

A short documentation for the extension…

• Bar Code Decoded
  Event raised after decoding bar code with result and bar format
  
  result ~ object
  barFormat ~ object

result and barFormat are usually strings, but if image has multiple bar codes then these are list

• Bar Code Generated
  Event raised after GenerateBarCode method with response and filepath.If any error occurred during encoding then filePath value will be empty.
  
  response ~ text
  filePath ~ text

• Barcode Formats
  Returns a list of barcode formats which can be either encoded or decoded.Some formats can be encoded and decoded both like QR_CODE and CODE_39.
  
  Returns : List

• Decode Bar Code
  Tries to decode barcode from given path.
  
  filePath ~ text

• Generate Bar Code
  Generates barcode to given path with provided hints.
  
  text ~ text
  filePath ~ text
  logoPath ~ text
  height ~ int
  width ~ int
  fileFormat ~ text
  barFormat ~ text
  charset ~ text
  margin ~ int
  bgColor ~ int (Color)
  barColor ~ int (Color)

4. Downloads

5. Liked my work/ Support me

If you liked my work, please consider donating some amount to keep me motivated.

6. ChangeLog

Hope it helps!