B4J Tutorials

BANano 2.19+ has a new object: BANanoPromise. It allows you to easily use Javascript Promises.

A promise can be useful e.g. if you want to upload/download files, which can take some time to do...

 

Dear All,

While learning and exploring B4J, captured B4J HowTos. The B4J HowTos are either from own experience or inspired by hints from the B4J forum (Thanks to All!).

Please note, due to...

 

Hi there

First and foremost, thank you for making a decision to view and even read this thread. Whilst not being an expert in BANano and still learning the ropes, the article is mainly about the...

 

Hi there

This is just my method (without abstract designer views) of adding and binding events to elements.

1. Elements are added to the page
2. After the page content is updated, events are...

 

Ola

Part 2

UPDATE: BANanoSQLite now available for actual sqlite db CRUD using PHP

I've been wondering if I could be able to do this as I want to distribute my app with an...

 

TreeTableView is a new control added in B4J v5.80.

TreeTableView is very similar to TreeView where each item has...

 

BANanoSQL makes it possible to use 'normal' SQL queries on the IndexedDB database located in the browser.

There are three ways on how to work with BANanoSQL:

1. Event Driven
This is...

 

Hi

UPDATE 2020-05-19: Please use this library instead

Source Code

Honestly I am not qualified enough to write this tutorial, but anyway, its a shot. I want to use this...

 

DOWNLOAD THE LATEST VERSION OF BANANO:

https://www.b4x.com/android/forum/threads/banano-progressive-web-app-library.99740/#post-627764

Check out part 1 of this tutorial here...

 

DOWNLOAD THE LATEST VERSION OF BANANO:

https://www.b4x.com/android/forum/threads/banano-progressive-web-app-library.99740/#post-627764

INTRODUCTION

BANano v2 has a completely new...

 

Peter had a great idea for a new feature in BANano:

Hello Alain,

So you don't get bored , I have an idea for another BANano killer feature: ServerCode

Imagine, it would be...

 

NOTE: This system is depreciated in V2 and replaced by a much better and complete solution. See here...

 

A friend of mine created a docker image for me to debug apps on my server quickly and easily.
I am happy to share this with you.

https://hub.docker.com/r/o0shojo0o/b4jbridge

 

Javascript acts differently compared to java when doing some async stuff and is rather complex. However, I've tried to make it as comfortable as possible for you, the programmer. All you have to...

 

A better tutorial: https://www.b4x.com/android/forum/threads/banano-v2-2-b4j-abstract-designer.101544

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In...

 

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...