B4J Tutorials

I took my inspiration from Erels JavaObject to make a similar one for BANano. This is the 'Object' that rules them all... (in version 1.08+)

What is the difference between a...

 

EDIT 1.04: Method syntaxes have changed!

With BANano, it is easy to make a Ajax call (e.g. to call a B4J REST API method).

There are two ways to do so:

1. Using events (the prefered way...

 

Running UI apps on Raspberry Pi with Java 11 is relatively simple.

1. Download Liberica JDK.
Download the lite version...

 

New tutorial based on Java 11: Raspberry Pi with Java 11

The first step is to download and run B4J-Bridge: Remote debugging with B4J-Bridge


Raspberry Pi is a low-cost...

 

BANano has a simple system to use events:

HandleEvents: does the same as On, BUT prevents the default behaviour
On: handles one or more events
Off: disables an event

To explain...

 

Maybe this is old news, but I was wondering if wait for could work with ABM events, and it seems they do!

Here for example (it is a page_ event, so I put it in the same class as where the page is...

 

Note: This example will be included in the upcoming 3.02 Maintenance Update.

I had a question if it was possible to create a Facebook-like WebApp with ABMaterial so I had some time to spare...

 

I was curious as to whether I would be able to create my first ABMaterial component. Well, the journey has been very interesting.

This comprises of more than 60 examples of setting the chart...

 

hello everyone !

It is with great honor that I present to you my tool for creating websocket & socket servers, it was developed using C ++ [libwebsocket, enet, winsock, lua_wrapper, scintilla and...

 

Hi there...

Anyway, this should not be long. Many moons I was requested to work on a firebase wrap for ABM. Im not there yet, but this should be a start. I'm still getting a hang of it and more...

 

Hi,

wanted to learn more about jRDC2. Let me share testing jRDC2 accessing a MySQL database, running on a Raspberry Pi (RPi), via a B4J UI application.

Raspberry Pi MySQL Setup

• ...

 

hello,

abmaterial provides this: ipaddressort/appname/

Is there a way to have this: ipaddress/

If you run your abmaterial application and you enter the ip address of the server, you need to...

 

This tutorial is no longer relevant. Use B4JPackager11: B4JPackager11 - the simplest way to distribute UI apps

Spoiler

When you compile in Release mode the complete app is packed as an executable...

 

Edit: XUI2D version of Tetris: https://www.b4x.com/android/forum/threads/xui2d-tetris.107698/

...

 

Using a CDN (Content Delivery Network) for your WebApp can be very beneficial:

The Benefits of using a CDN:

• Different domains. Browsers limit the number of concurrent...

 

ABMaterial For Dummies​

This has often been asked for - so it is high time to produce a simple set of guidelines to help get you across the short...

 

This is the B4J version of this B4A example: Network + AsyncStreams + B4XSerializator
Note that B4XSerializator is cross platform, so it should be simple to use similar code to communicate...

 

It is recommended to use B4JPackager11: Integrated B4JPackager11 - The simple way to distribute standalone UI apps

Spoiler: Older tool

B4J Packager is a small utility that uses javapackager to...

 

This "My B4J Packager" started as the B4Jpackager provided by Erel. I have added the text entry fields for the extra things like, Menu Group, JavaVM Options (to set memory requirements)...

 

Objectives
Create an ABM custom component to display line and bar charts.

The custom component build, CustomChartJS, is a minimal solution based upon the Chart.js project...