B4J Tutorials

B4J currently supports two types of applications: UI applications (based on JavaFX) and Non-UI applications.

Non-UI applications are standard Java applications. Usually the input to such...

 

When you create a new UI project, the project starts with a single code module with the following code:

#Region  Project Attributes
   #MainFormWidth: 500
   #MainFormHeight: 500
#End Region...

 

The ABMDateTimePicker has, next to date and time selection now also week selection. I've searched some time to find a good one, but didn't so I decided to write it myself. Looks like a great...

 

Online example: http://basic4ppc.com:51042/reports/google_charts.html

Google Charts is a free web...

 

The common entry point for a ABMaterial webapp is the “Application Name” page or AppName in the code.

When you visit ABMaterial.com, the site redirects you to the entry page named “demo”...

 

The views below are shown as phone portrait size ( < 600px )

Prior to 2.0

Version 2.0

Sub ConnectPage()
  
    ABMShared.ConnectNavigationBar2(page...

 

I ran some tests to check how these boards perform as web servers.

The tests were similar to the tests done here and here.

Data was read and written to a SQLite database in wal mode...

 

Custom views are implemented as B4X classes or in a library.
A custom view includes a set of properties that can be set...

 

Before you use this tutorial

1. You need to know how to compile JRDC 2 jar file. Kindly Search the forum.
2. You should have installed openjdk or oracle jdk in your server. For more...

 

Hi there

Ok, I'm just a newbie when it comes to ABMaterial, my fourth week now. It's been a wonderful journey and very interesting too.

For a while now I have been struggling to understand the...

 

Hello,

I don't know if I am handling it the right way.
I have I ABmaterial app running on my RPI.
Now in the main, I have a serial connection with a device that get counters every 60 seconds.
It...

 

ABMaterial includes the GoogleMap object (class - API exposure) to allow us to do some interesting tasks. The basics are now supported but I am sure it will expand in the future. I have...

 

In keeping with the PDF viewer layout, I created this page.

Driver Photos

Pictures are taken on the device at certain times (like when the Drive Screen pops up).
These are to show if the driver...

 

In the last years there were many reports in the media about Java security. All these security issues are related to vulnerabilities that allow the process to exit the sandbox boundaries.

These...

 

Wow...

In my quest to replicate my android app to ABMaterial framework, just managed to execute my php scripts that access mysql db directly from my experiment web app.

Check this out......

 

B4J jSQL library is similar to Basic4android SQL library.

This tutorial will cover the differences between the two libraries. You can read more about the library methods here...

 

Hi there

I have been working on a helper tool for ABMaterial as discussed in this post.

One of the most amazing feautures that have been added now is the ability to see the source code...

 

New tutorial: https://www.b4x.com/android/forum/threads/server-conscrypt-and-http-2.93040/

Spoiler: old tutorial

B4J v4.00 adds support for Http/2. This is the new version of the Http protocol.

The two main...

 

This post is no longer valid! B4JS has been rewritten from the ground up and will first introduced in In ABM 4.25. Stay tuned......

 

Hello,

today i will share my Experience with the DS 18B20 Temperature Sensor.
The first step is to prepare the Raspberry PI.
edit the file:

sudo nano /boot/config.txt

insert the following...