B4J Tutorials

Simple Layout Designer (SLD) B4J application.

Check out message #31 for the latest update!

In this tutorial you can learn how to create a layout using the Simple...

 

This is meant to be a tutorial for you to easily distribute your applications developed in linux.
Through B4JPackager11 and B4JPackager v1.50 the excellent tool developed by Erel gives us the...

 

Since retiring some time ago, I have been thinking about creating stories that involve
computer operated robots which carry out actions and speech - like actors in a drama.

It would have at least...

 

I made 7 examples how to exchange data between B4x apps and php. I use the POSTSTRING method as it is simple, secure (get-methods will be logged with the data autmatically on the server...

 

Suppose we use the plotly library (https://plotly.com) as an example to add a chart.

When we look at their example on how to use it:

Plotly.newPlot( "chart", [{
    x: [1, 2, 3, 4, 5]...

 

If you are in a hurry, or if you don't want to design your own form, you can use the standard PreferencDialog
in combination with FormsBuilder to create a pretty nice form, one form per B4XPage...

 

It is based on this Github posting (JSpice) and the post that was placed here.

"Waar daar 'n wil is, is daar 'n weg" - where there is a will, there is a way....

The...

 

Hi friends,

I wrote a B4J program and a comprehensive tutorial in my blog page. It shows who is online in local network by names of persons. It scans 254 ip numbers in less than one...

 

Hansolo Charts have some very nice looking charts. Download the Jars from the link below and copy the jars into your B4J additional library folder.
A sample project is attached ( draws 8x charts)...

 

It is a sample project for this Github posting - using fxyz3d (have added it via inline Java code in a B4J class and then added some setters to the class.

Download...

 

Not to scale but all planets as well as the sun rotating on their respective axis's at the same rate (for now) - a 3D view of all of the planets and the sun (have included Pluto)

Download it from...

 

Hi there

By the end of this, you should be able to have your own Web Push Notification Server running. Below is an example of a notification coming from a cloud deployed PocketBase server...

 

Hi

I just had the pleasure of looking at this Notifications API again. Below is my example.

You can get more infomation about it here...

 

UPDATE: since december 2022, chrome plugins like this have stopped working. Luckcely, the author of this plugin has created a standalone alternative you can install on your computer:

Simple...

 

Hi

This is a continuation of this thread.

[BANano] SupaBase (FireBase Alternative) crud example with SSE

Hi Supabase is an open source Firebase alternative. It provides all the backend services you need to build a product. Supabase uses Postgres database with real-time capabilities. Basically, supabase provides an interface to manage postgres database that you can use to create table and insert...

www.b4x.com

In this tutorial, we look at user...

 

Hello friends,

This is my first but not last post in forum When I checked B4J_chat.zip file in Erel's post, I see that there is an old .fxml designer file that can not be recognized by...

 

Hi

By the end of this, you will be able to:

1. Get a client list from a REST API database. For this case we will use a fake REST API fom https://randomuser.me/
2. Load this client list to...

 

This is a easy way to install SSL Certificate on a VPS with Jetty.

(1) Goto ZeroSSL to create free sll for your domain: https://zerossl.com/

(2) Download your Certificate...

 

B4J v4.00 adds support for SplitPane container. SplitPane is a container made of two or more sections divided with movable dividers.

The SplitPane orientation is either horizontal or vertical...

 

Hello.

Today I would like to present how to combine PyScript with B4X. I have taken ABMaterial as an example.
First, let's start what PyScript is. In the simplest way, it is the execution of non...