B4J Tutorials

B4Xsources: a B4X source code viewer using command line tools to extract and decompile the files.

• By PaulMeuris
• Mar 15, 2023

In this tutorial you can learn how to extract files from a B4Xlib or Jar file.

You can select in the file menu the library type to open and extract.

For each...

 

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[SithasoDaisy] Using EmailJS rest api to send emails

• By Mashiane
• Mar 18, 2023

Hi there

The purpose of this tutorial is showing the functionality of sending emails using EmailJS.

This was discussed on this link...

 

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Simple Layout Designer (SLD) B4J application.

• By PaulMeuris
• Jan 25, 2023

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...

 

Attachments

• sld00.png

  26.5 KB · Views: 1,367
• simple_layout_designer.zip

  270.5 KB · Views: 569
• sld_load_example.zip

  115.4 KB · Views: 518

Last edited: Mar 2, 2023

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The easy way to install your B4J application on Linux

• By MarcoRome
• Dec 31, 2019

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...

 

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[B4X] Faces, Assemblies, Traces, and Points. Standard Classes for creating a story.

• By William Lancee
• Feb 5, 2023

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...

 

Attachments

• Tutor_A.zip

  17.9 KB · Views: 405

Last edited: Feb 5, 2023

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[B4x] Exchange Data via OkHttpUtils and php (or other platforms) via lists, maps, arrays, etc.

• By KMatle
• Sep 21, 2019

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...

 

Attachments

• PHPExamples.zip

  6.1 KB · Views: 736

Last edited: Mar 8, 2020

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[BANano] Calling JavaScript methods with parameters explained

• By alwaysbusy
• Mar 16, 2021

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:

B4X:

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

 

Last edited: Mar 16, 2021

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[B4X, B4xPages]Using the Standard B4XPreferenceDialog Library with B4XPages to Create Effective Forms

• By William Lancee
• Jan 26, 2023

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...

 

Attachments

• PrefFormsV3.zip

  29.3 KB · Views: 514

Last edited: Jan 26, 2023

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"Embedding" JSpice in B4J

• By Johan Schoeman
• Jan 7, 2023

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...

 

Attachments

• JSpice2.zip

  9.6 KB · Views: 369

Last edited: Jan 7, 2023

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Office Scanner tutorial

• By erol34
• Jan 19, 2023

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...

 

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Hansolo Charts

• By Johan Schoeman
• Nov 5, 2022

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)...

 

Attachments

• HansoloCharts.zip

  13.9 KB · Views: 501

Last edited: Dec 3, 2022

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Fxyz3d - samples

• By Johan Schoeman
• Dec 30, 2022

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...

 

Attachments

• MathVis.zip

  4.1 KB · Views: 429

Last edited: Dec 30, 2022

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Galaxy

• By Johan Schoeman
• Dec 27, 2022

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...

 

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[SithasoDaisy] - PocketBase - How to create a Web Push Notification Server with PocketBase SSE

• By Mashiane
• Dec 21, 2022

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...

 

Last edited: Dec 21, 2022

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Web Push Notifications using the Notifications API

• By Mashiane
• Dec 21, 2022

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...

 

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[BANano] TIP: Running a test server

• By alwaysbusy
• Dec 7, 2018

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...

 

Last edited: Dec 19, 2022

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[BANano] SupaBase (FireBase Alternative) User SignUp & SignIn Process

• By Mashiane
• Dec 17, 2022

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...

 

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jSerial + AsyncStreamsText + com0com (virtual serial port)

• By erol34
• Dec 1, 2022

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...

 

Attachments

• Chat.zip

  3.8 KB · Views: 681

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SithasoDaisy: How to create a Client List Report in MS Word

• By Mashiane
• Nov 23, 2022

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...

 

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How to Install an SSL Certificate in B4J Server (Jetty)

• By tummosoft
• Jun 27, 2022

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...

 

Last edited: Jun 27, 2022

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