B4J Tutorials

WABA (WhatsApp Business API)

I want to start with a clarification, META offers three WhatsApp services: WhatsApp, WhatsApp Business, WhatsApp Business API. The first two are applications, the first of which is intended...
 
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[B4X] Native B4X Implementation of Two Pandas-like Classes: DataFrame and Series

Edit: These classes are largely superseded by ListOfArrays in combination with wLOAExtras....
 
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[Web] MiniHtml Quick Tutorial

A New Paradigm Shift​

MiniHtml is a B4X library to create html markup. Instead of writing html using opening and closing tags, we declare MiniHtml object and chain it's methods to...
 
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[AI] B4JBuilder: Building your projects via AI

Hi Fam

So im debuging SithasoDaisy5, so I was curious as to how the thing can build my project after debugging without me having to open the b4j IDE.

I referred CodeX to this b4x post and it...
 
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[Web] SithasoDaisy5 Demo (Code Only Version) - For Non Abstract Designer Users

Hi Fam

Experience on Vercel
Download Code

The first draft of the SithasoDaisy5 Demo Code Only Version is out. This demo has been built with code only and does not need abstract...
 
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HTML Web Server

Chapter 1: Introduction​

The minimum code that we need to create a server is as following:
B4X: 
Sub Process_Globals
    Public srvr As Server
End Sub

Sub AppStart (Args() As String)...
 

Attachments

  • server.zip
    78.2 KB · Views: 112
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[Web] How to build Full Stack WebApps with BANanoServer CRUD REST API?

Hi Fam

Download Source Code

Step 1: In the files folder there is an address book sql file. Upload this to your MySQL db. You can install MySQL for that. If you have phpMyAdmin, you...
 
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How to handle "java.io.IOException: WaitForMultipleObjects error=6, Invalid handle"

As I didn't find anything on the forum regarding this error and it took me a while to solve it, I'm posting this here. I was running a B4J program from the IDE on Linux (under wine) and ran into...
 
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[Web] Break and Rebuild Strategy

Designing a web front end from scratch usually requires years of experience.

When you want to create a real world web app, you need to have a dashboard or user panel once the user has login.

The...
 
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[Web][PHP-CRUD-API] Building a Scalable SSE Ecosystem with PHP and JavaScript for Realtime Communication (No Polling)

Hi Fam

This project was inspired by Pocketbase built in SSE and its built on top of PHP-API-CRUD.

Previously we shared a creation about SSE (Server Side Events) using PHP and PHP-CRUD-API...
 
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[PyBridge] Text to speech with Pocket TTS

Attachments

  • Pocket TTS.zip
    4.1 KB · Views: 161
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[B4J+B4A] CCTV example (updated)

This is based on the original example

B4J CCTV example

This example is similar to the previous example: http://www.b4x.com/android/forum/threads/android-based-closed-circuit-tv-cctv-example.23601/#content The server is now implemented in B4J. In order to run this example you will need to allow incoming connections on port 17178 (or other port)...
www.b4x.com

GitHub:
https://github.com/pyhoon/CCTV-example-B4J...
 

Attachments

  • CCTV-B4J.zip
    3 KB · Views: 199
  • CCTV-B4A.zip
    13.5 KB · Views: 195
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[Web][SithasoDaisy5] GifPlayer and Animated WebPPlayer

Hi Fam

With the latest update of the SDUI5Image component, one is able to view animated webp and gif files.

The src attribute should be the path to the webp / gif file, gif should be true and...
 
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[Web][SithasoDaisy5] Edit BJL Layout in JSON format & Convert JSON to BJL

Hi Fam

With the JSONEditor in SithasoDaisy5, one is able to open, view and edit JSON files. With the new additions to SithasoDaisy5, one is also able to convert these JSON layout files back to...
 
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MacSigner - Building notarized Mac packages



It is mostly impossible to run non-notarized and unsigned apps on new versions of Mac.
MacSigner tool will help you with the various steps required to convert the app jar to a...
 
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[pybridge] Mac notarized standalone package with embedded python



This process requires a few extra steps. Before you start, make sure to be familiar with B4J-Bridge and MacSigner. MacSigner v2.01+ is required.

1. Download standalone...
 
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[Web][SithasoDaisy5] Theming your WebApp with some beautiful theme variants.

Hi Fam

DaisyUI has about 35 themes that you can apply for your app. A simple example below is the application of the theme synthwave to the Demo




There are 35 themes that one...
 
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[PyBridge] - create Aztec 2D Codes

[PyBridge] Create barcodes

Based on: https://python-barcode.readthedocs.io/en/stable/getting-started.html Usage: Wait For (CreateBarcode("code128", "abcdef")) Complete (Result As B4XBitmap) ImageView1.SetBitmap(Result) 'dependencies: pip install python-barcode "python-barcode[images]" 'Types: ['codabar', 'code128'...
www.b4x.com
 
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[PyBridge] - create 2D DataMatrix codes

[PyBridge] Create barcodes

Based on: https://python-barcode.readthedocs.io/en/stable/getting-started.html Usage: Wait For (CreateBarcode("code128", "abcdef")) Complete (Result As B4XBitmap) ImageView1.SetBitmap(Result) 'dependencies: pip install python-barcode "python-barcode[images]" 'Types: ['codabar', 'code128'...
www.b4x.com
 
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How to OCR image text

1.Download the following .jar files:
lept4j-1.19.0.jar
slf4j-api-1.7.32.jar
jai-imageio-core-1.4.0.jar
jna-5.14.0.jar
tess4j-5.10.0.jar
Place then in addLibs ( or...
 
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