B4J Tutorials

Hi there

I needed a simple and quick API to send emails and found EmailJS. There are a variety of other emails you can find. One of the things I like about this is the ease if creating...

 

Google Play Developer API allows you to access your developer account and do all kinds of things. For example get the latest app reviews or check the status of in-app purchases.

Like with all...

 

Hi

I have been curious about this, so here is my entepretation so far...

bitcoin.Initialize
    '
    Dim b1 As Block = bitcoin.NewBlock
    bitcoin.SetField(b1, "amount", 5)...

 

Upgrading from a non-tls connection to a tls connection only makes sense when dealing with a protocol that specifically requires it. It is much simpler and also a bit more secure to start with a...

 

Researching the internet I have found two great tools that can be used for testing webapps and webhooks.

The first is called ngrok. What it does is that it creates a tunel to your web app and...

 

Objectives
To install a service on a Raspberry Pi enabling start, stop, status and autostart an ABMaterial application.
The tutorial uses an ABMaterial v4.00 example application [to explore...

 

Wikipedia: Google Authenticator

Most websites where you have to log in offer to protect your account by using a multi-factor authentication. Here you can use an app like Google...

 

Ola

The grouplist enables one to group elements added easily. Thanks to code that @Brandsum for code to unflatten a list of map records to a tree.

We create the grouplist...

 

Hi Fam

The list of apps as at 23 April 2024 for the $5 subscribers is the following. Please check against your downloads and DM me if you have something missing / lack access.

The purpose of...

 

Ola

This tut is based on the BANano based library here.

The ICONRENDERER is a column render to ensure that icons in your rows are rendered. These can be material and fontawesome icons...

 

Hi

The tree-table is a combination of the tree and the data-table.

To create the tree-table, one needs to add the columns they will need, then indicate which column should feature...

 

I was making the switch from Java 8 to Java 11 and wanted to use the 'Integrated B4JPackager11' as explained by @Erel in...

 

A new component for ABMaterial in the next version (1.08): ABMPDFViewer. It allows viewing, printing, downloading, localizing, a side view to show pages and more.

Completely materialized...

 

Foreword:
This solves a very specific case that may just apply to me. For current development, I'm still on JDK version 8. But for future coding/testing, I also have JDK 11 installed. I often...

 

The Pagination container (added in B4J v5.0) is similar to TabPane and Accordion. It holds one or more pages. Each page is created from a layout file.

Sub AppStart (Form1 As...

 

See for a B4JS introduction: https://www.b4x.com/android/forum/threads/abmaterial-b4js-0-9.90249/

Note: for this tutorial, I may use some typical ABM things. You can ignore them as they are...

 

Ola

This lesson is about the 'context' and 'contextmenu' widgets.

Context are popups that one can use in case they want to provide some help on the UX. Both the context and context menus appear...

 

Unhandled exceptions are exceptions that were thrown outside of Try / Catch blocks. Such exceptions cause the process to exit in all cases except of server applications.

Starting from B4J v5.0 it...

 

Sharing Experience ...


How to work banonowebix projects at jServer at least the client-side right / not the php server scripts... (caution!)

well when you open a project at...

 

Ola

The webix system has built int hints system that one can use to provide hints on the usage of the app as demonstrated. To be able to use this widget, one needs to create the...