B4J Tutorials

Starting from B4J v2.00 the server can listen to two ports, the standard insecure port (http) and a secure port (https).

The default port for http is 80 and for https is 443. These ports are used...

 

Better to start with the integrated packager: https://www.b4x.com/android/forum/t...-way-to-distribute-standalone-ui-apps.117880/
B4JPackager11 is a...

 

Ola

Whilst this is being tested with BANanoVueMaterial, the LOGIC is applicable for any related code like this. We are loading an autocomplete input based of a fetch results from a...

 

Hi,

using it as a non-ui program works well, but I prefer using it as a ui program.
Therefore, I have now changed the application as ui program.
This wrapper is derived from "B4JPackager11 v1.14"...

 

Is there a way to catch this error “java.lang.OutOfMemoryError: Java heap space”?

When the error happens it just seems to close the app.. I don’t want the app to close just display the error to...

 

Ola

NB: First set up BANanoVueMaterial The code for this tutorial is under the folder 4. Examples\6. Form Utilities


This tutorial will take you through the process...

 

FontAwesome and Material Icons are two free icon sets including more than 1500 icons.
They are implemented as regular font files which means that each icon is a regular character...

 

https://www.b4x.com/android/forum/threads/b4x-b4x-programming-technics-track-changes-tool.112452/

 

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...

 

Hello

There has been a few tutorial & posts about this already, but most of them are outdated or buried somewhere. I found an updated tutorial which explains very well the steps for installing...

 

This procedure starts from a freshly installed AWS EC2 Linux instance and installs a B4J server, named B4J.jar, configured as a daemon.
This tutorial assumes a basic knowledge of a Linux...

 

Sharing my first experience on how to develop a B4J UI application using the B4J-Bridge, in a window on Ubuntu 18.04.3 LTS (Codename bionic) running on an ACER Aspire.
My aim is to develop...

 

Ola

NB: Update browser settings to view PDF internally!!!

Test Drive

We started with BANanoPDFMake, which was a coding based approach to creating PDF Documents. To be able to...

 

Ola

The newest version of BANano comes with a lot of enhancements and some very interesting stuff. There's so much to learn.

So I decided to check one interesting thing out, Getting / Executing...

 

In this tutorial, I want to show you, how you can upload your Java Application to the Mac AppStore.
Here you can find a test Application in the Store.

Requirements:

• MacOS...

 

Ola

Simply put, this google map allows one to display a google map on their apps. One is able to also add markers that properties can be set up for.

One needs to get their own...

 

Ola

I recently had an issue. My app was working perfectly on the desktop and any other device except the mobile devices.

Using google chrome i found this extension named Inspect Devices...

 

Ola

The world has changing at a very lightning-fast speed. Gone are the days when websites were static. Ajax came for dynamic websites and soon React, Angular, Vue, the list is long.

A couple of...

 

Before you start: You need some experience with php, Apache Servers, OkHttpUtils, Lists, Maps and JSON structures.

This is an updated example of how to

- communicate with a apache server via...

 

We had an elections yesterday and I saw a nice widget which can serve as a small example.

There are several parties each one with a...