B4J Tutorials

Mashiane · Mar 10, 2025

Hi Fam

Well, here it is..

Why?

I need a way to receive MQTT push notifications on my webapp. I didnt want to use Firebase but MQTT. The problem is the B4x Broker does not support...

Mashiane · Apr 11, 2025

Hi Fam

V7 of BANano came with background workers. I tested this and I was happy recently to actually use them in a solution...

max123 · Apr 8, 2025

Hello everyone,

a proverb says 'when the going gets tough, the tough get going'.

On this direction, up to now I have posted simple demonstrations of what you can do with the WebGL library.
If...

Mashiane · Apr 3, 2025

Hi Fam

Ensure you create credentials to login to your HiveMQ account.

You get your TSL WebSocket URL which is like..

B4X:

104bbaaaa07a4293456e659cf91023.s1.eu.hivemq.cloud:8884/mqtt

...

max123 · Apr 1, 2025

Hi all,

this is the second part of WebGL library physics engines demos.

Before compile it, you have to download the Resources1.zip file, rename it to Resources.zip
and put it in the...

Mashiane · Mar 30, 2025

Hi Fam

The EasyMDE allows one to have a MarkDown Editor within their app. This is based on this GitHub.

One is able to create Markdown documents and save and retrieve them. The nice thing...

Mashiane · Aug 31, 2024

Hi Fam

I wanted to sign PDF documents in my product. So.. I used the PDF-LIB for this.

1. I designed a screen to enter the signature and initials.

2. The canvas we use...

Mashiane · Dec 28, 2016

Hi there, it's a pleasure to get this working...

My jFreeTTS is a library that I've just managed to cook for text to speech using the FreeTTS library.

1. Download the FreeTTS...

Mashiane · Mar 27, 2025

Hi Fam

This has been one of those components that I postponed to do. The creator of MathJS, a javascript library that I have been using for a while, also created a JSON Editor. I decided to...

Mashiane · Mar 27, 2025

Hi Fam

With SithasoDaisy5, you have the capability to view JSON files as dynamic trees. This is wrapping this Github project.

The code is as simple as feeding the component...

Mashiane · Mar 25, 2025

Hi Fam

With SithasoDaisy5, you will be able to create Organograms / Family Trees. Drop a SDUI5TreeSpider on your form and whala!

This is wrapped from this GitHub Project

B4X:

...

Mashiane · Mar 23, 2025

Hi Fam

Before you start this tutorial, please ensure that your dev environment is setup by following this tutorial...

Erel · Mar 19, 2025

pyvips is a very powerful image manipulation library. It can manipulate very large images. I've created a modified "HugeImageView" based on it as an example. It can show 1-2 GB images...

OliverA · Jun 10, 2019

First post, first issue:
I'm in the process of developing an ABM application. For testing purposes, I uploaded the application on my test server. The application may start fine, but when loading...

Erel · Feb 17, 2025

PyBridge is a framework that allows accessing Python libraries from within B4J.

It works by starting a Python process that connects to the B4J process. The Python process receives commands from...

max123 · Mar 17, 2025

Hi all,

here a simple shooter game using B4J WebGL libary and cannon.js physic engine.

Note that really I use cannon-es that is a port of cannon.js to use inside Javascript ES6 modules.

Note...

Erel · Mar 16, 2025

PyBridge must be accessed from a single thread. In server solutions, each handler runs in its own thread so we need to add some barriers to ensure proper usage.

The way to implement it is by...

Erel · Mar 12, 2025

This sophisticated project does one thing - the user clicks on a hardware button, connected to the RPi, and a notification appears on the PC.

The setup:
RPi running Mosquitto broker...

max123 · Mar 11, 2025

Hi all,

this code will show how to make a simple 3D game, with gravity and collisions by code without use any physics engine.

I want to remember that with WebGL library you can use more than one...

Mashiane · Nov 19, 2022

Hi there

NB: Where possible, please include a simple project that demonstrates your use case.

Do you have any questions about SithasoDaisy UI Toolkit?

You can shoot it here...

B4J Tutorials

Show only:

[Web][BANanoMQTT] Send, Receive Push Notifications in your Local Mosquito Broker in your WebApp.

[BANano] Lessons I learned from building a Background Worker in a BANanoServer Project

WebGL library, working with static and animated models

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[BANano] BANanoMQTT with HiveMQ Cloud

WebGL library, working with physics engines - Part 2

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[SithasoDaisy5] Easy Mark Down Editor & Viewer

[BANano] How to Edit / Sign existing PDF Documents?

jFreeTTS Text2Speech Library

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[SithasoDaisy5] A JSON Web Editor you will love from the creator of MathJS

[SithasoDaisy5] Effortlessly visualize JSON structures as dynamic tree diagrams

[SithasoDaisy5] Creating your Organogram / Family tree

[SithasoDaisy5] Creating your first MySQL CRUD WebApp using REST API With API-Key (Php)

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[PyBridge] pyvips - image manipulation library

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[ABMaterial][BANano] Issue(s) with developing in both

[PyBridge] The very basics

WebGL library, working with physics engines - Part 1

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[PyBridge][server] Using PyBridge in web apps

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[PyBridge] Communicating with Raspberry Pi

Make a simple 3D game with WebGL library, with gravity and collisions in less than 300 lines of code.

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SithasoDaisy TailwindCSS UI Toolkit: Q & A

B4J Tutorials

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