pdf417 | Barcode generator in PDF417 format | Barcode Processing library

I have the following example of PDF417 barcode:

which can be decoded with online tool like zxing

as the following result: 5wwwwwxwww0app5p3pewi0edpeapifxe0ixiwwdfxxi0xf5e�¼ô���������¬‚C`Ìe%�æ‹�ÀsõbÿG)=‡x‚�qÀ1ß–[FzùŽûVû�É�üæ±RNI�Y[.H»Eàó¼åñüì²�tØ¿ªWp…Ã�{�Õ*

or online-qrcode-generator

as 5wwwwwxwww0app5p3pewi0edpeapifxe0ixiwwdfxxi0xf5e~|~~~~~~~~~~d~C`~e%~~~~;To~B~{~dj9v~~Z[Xm~~"HP3~~LH~~~O~"S~~,~~~~~~~k1~~~u~Iw}SQ~fqX4~mbc_ (I don't know which encoding is used to encode this)

The first part of the encoded key that contains barcode is always known and it is 5wwwwwxwww0app5p3pewi0edpeapifxe0ixiwwdfxxi0xf5e

The second part of it can be decoded from the base64string and it always contains 88 bytes. In my case it is:

Frz0DAAAAAAAAAAArIJDYMxlJQDmiwHAc/Vi/0cpPYd4ghlxwDHflltGevmO+1b7GckT/OZ/sVJOSRpZWy5Iu0Xg87zl8fzssg502L+qV3CFwxZ/ewjVKg==

I'm using Swift on iOS device to generate this PDF417 barcode by decoding the provided base64 string like this:

This is the barcode scanning tutorial I used in my program, so that you have a lot more context when you read my code: Link

Here is what my program does so far: Essentially, when I scan an item's barcode with my phone, the UIAlert pops up with the barcode ID displayed and a button prompting the user to open the "Results" page. This is all fine and good, but how do I pass that same scanned barcode ID into a label on the Result's page? I have been stuck on this for 2 days now, even though it seems like such an easy task.

Any help is much appreciated <3

Here is my relevant code:

ProductCatalog.plist -> Link to Image

Scanner_ViewController.swift (first View Controller) ->

I am working on a rails application that needs to send an piece of HL7 data encoded as PDF417 as JSON over API. The receiver of the barcode encoding will then insert the data into a word document with a PDF417 IDAutomation barcode font.

The problem I am running into is providing an encoding that the font likes.

I've used several encoders, Barby, https://github.com/asee/pdf417, https://github.com/asee/pdf417, which produce arrays of integers(codewords) via text compaction, binary compaction, etc, but all of these are different than what the IDAutomation font expects. Using their encoders it creates a list of 11 rows of numbers 324 chars each.

I seem to be missing a key piece of information here, but having trouble finding the explanation. I found a clue regarding getting the right error correction, row count, and column count values, but it still seems to be a big disconnect between what ID Automation font wants, and these ruby barcode encoders produce. (An array of binary, or an array of codewords)

For example with Barby: Binary:

What's wrong with this code? I am running the following code in MainActivity but I get only an empty app:

I'm trying to generate a pdf417 barcode in python using treepoem but pycharm keeps giving me the following error:

Traceback (most recent call last):

File "C:/Users/./Documents/barcodes.py", line 175, in image = generate_barcode(barcode_type="pdf417",data=barcode, options=dict(eclevel=5, rows=27, columns=12)) File "C:\Users.\AppData\Local\Programs\Python\Python36-32\lib\site-packages\treepoem__init__.py", line 141, in generate_barcode bbox_lines = _get_bbox(code) File "C:\Users.\AppData\Local\Programs\Python\Python36-32\lib\site-packages\treepoem__init__.py", line 81, in _get_bbox ghostscript = _get_ghostscript_binary() File "C:\Users.\AppData\Local\Programs\Python\Python36-32\lib\site-packages\treepoem__init__.py", line 108, in _get_ghostscript_binary 'Cannot determine path to ghostscript, is it installed?' treepoem.TreepoemError: Cannot determine path to ghostscript, is it installed?

I've tried to install ghostcript, using both the .exe I found online and using pip install ghostscript (successfully completed the first time, and now tells me the requirement is satisfied), yet I still keep getting this error. Any ideas on how to fix it?

I was trying to make a class for scanning barcodes with "fast_qr_reader_view: ^0.1.5" dependencies. But when I call this class on my main.dart this error came out "NoSuchMethodError: The method[] was called on null.Receiver:null. Tried calling:"

I already tried writing on the main.dart and works, but when Im calling it from a different class doesn't work

This is my code that shows me the error main.dart

I'm looking to write a few hundred barcodes for work. I want it to be done at the same time as to not manually run a script for each barcode. The script I currently have only writes one barcode when I need 400.

I am new to Swift/iOS development and am working on Converting a Swift 3.0 project to Swift 4.2 in order to support newer devices.

In the process I am getting the following error :

Cannot assign value of type '[String]' to type '[AVMetadataObject.ObjectType]?'

Below are the lines of code throwing the error:

I use QR code scanner in Android, I want split value but i cant sent result to Main_Activity from ScanActivity,crash the program and I have Error in this below

(Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.os.BaseBundle.getString(java.lang.String)' on a null object reference at com.exampledemo.parsaniahardik.scanbarcodeqrdemonuts.MainActivity.onCreate(MainActivity.java:26))

Anybody can help me please?