B4J Tutorials

The purpose of this example is to demonstrate how you can interact with the server through ajax requests.

The server...

 

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

Google Charts is a free web...

 

This is an example of building a data collection solution. The solution is made of three components:
- (B4J) Server - Manages the data in a SQLite database.
- (B4A) Device client and (B4J) desktop...

 

Starting from B4J v1.80 you can configure custom error pages. This means that instead of the default error page:

You can...

 

Edit: It seems like there is an issue with Http/2 enabled with Conscrypt (https://github.com/eclipse/jetty.project/issues/2342). For now it is recommended to use Java 9+ without...

 

In a previous example we shown you how you can use B4J to create a desktop application that connects to a number of devices and shows the camera frames: B4J CCTV example

In this example we...

 

Edit: Web Apps tutorial: http://www.b4x.com/android/forum/threads/webapp-web-apps-overview.39811/

The server implementation is based on a popular and powerful Java server library...

 

PrintHtml is a Windows utility that prints html files. You can see more information about it here: http://www.b4x.com/android/forum/threads/print-with-printhtml-tool.35492/

In this example...

 

jServer v2.70 adds support for background workers (https://www.b4x.com/android/forum/threads/updates-to-internal-libaries.48274/#post-465493).

A background worker is a class instance that...

 

When working with WebSocket handlers the client maintains an online connection. The connection is expected to be kept alive for as long as needed.

However there are cases where the connection can...

 

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...

 

jPi4J library supports the PiFace Digital extension. However it doesn't support the CAD module as the...

 

I have just purchased this kit and have started to go through the examples. In an effort to help others like me with little or no knowledge of how to port the examples to B4J, I thought it might...

 

With Gluon JavaFXPorts it is possible to run JavaFX on Embedded like the Raspberry Pi.
JavaFXPorts is the name of the open source project maintained by Gluon.
The JavaFX application...

 

As part of my ABMaterial explorer tendencies, I delved on working on a dashboard that will give stats about the previous and latest version of ABMaterial. This is based on 3.5 and 3.75 libraries...

 

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...

 

A couple of days ago I posted an article, Android2ABMaterial: A Personal Experiment. This article is about how I created that ABMaterial WebApp using MyMaterial.Show, a code...

 

Hi there

I have been requested to do a simple something on how one can create a simple ABMaterial WebApp using the Pen&Paper code generator. The attached video seeks to demonstrate with a simple...

 

Hi there

Well, this is not new. The ABMGenerator has been an inspiration to this, so I have just adjusted a few things for my liking. As you might know, MyMaterial.Show is a code generator for...

 

Hi there

MashPlugIns
Pen & Paper


In this part of the ABMaterial WebApp, we will demonstrate how to create a ListView that will load all the contacts from our...