B4J Tutorials

This is my first attempt at B4J. Have not tried to do anything special to the layout etc. The aim was to get back the correct binary strings to draw Code11, Code39, Code93, EAN8 and EAN13 barcodes...

 

Ola

I have about 125 questions and each question has 1 possible answer from 4 responses.

Let me depict everything like this...

1. Responses ( a user should only select one using a radio box)...

 

Ola

BANAno4Dummies

TERMS OF ENGAGEMENT: Please DO NOT POST QUESTIONS ON THIS THREAD.

I AM ONLY DOING THIS DUE TO THE NUMEROUS REQUESTS I HAVE RECEIVED TO DO IT. I AM NOT A BANANO...

 

Less of a tutorial, more to point out another option which doesn't seem to have a mention anywhere on here yet....

I was searching for options to create a backup copy of an SQLite database. There...

 

If you use SQlite in your apps in you need to do backups. A bad decision is just to copy the database file:

- there will be more than one file when the database is online (e.g. *.wal and other...

 

Hi

I am attempting to use a B4xTable as a property bag. I found B4xTable Inline Editing fit for this as i can set and get any component. You can use that as reference.

The magic is keeping which...

 

Hola, si has utilizado [B4X] Localizator - Localiza tus aplicaciones B4X, sabes que tienes que usar Excel para añadir las claves y luego traducir cada una de ellas al idioma de destino. Con...

 

It is very simple to read data from an Excel workbook and show it with B4XTable.

The almost complete code:

...

 

I am working on app where I need the B4XTable.
With the help of this forum I learnt a lot already.
The following functions are very handy to me, maybe you can use them too.

1) Getting the column...

 

In this tutorial you can learn how to extract files from a B4Xlib or Jar file.

You can select in the file menu the library type to open and extract.

For each...

 

B4XPages Video Tutorial Series

Hello, I intend to share my knowledge using B4XPages through this beginner tutorial. Please subscribe and share. Part 1 - Getting Started with New Project Part 2 - Adding Multiple Pages and Navigating Part 3 - B4XPages Folder Structure and creating new Modules

www.b4x.com

 

Very very rough (and code not optimized at all)....planets in orbit around the sun:
1. Assumed all orbits are circular
2. Have not scaled the orbits (else I will run out of UI space)
3. Have not...

 

This is a Bash shell script that allows installing B4J and B4A in linux systems, along with their required dependencies. It is very functional. But for now only Ubuntu is fully...

 

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

 

This is not really a tip or a tutorial, more of a warning for others.

I made a small B4J program and wanted to distribute the program on a Windows 10 PC. As I was using jSerial, I followed the...

 

Here's an example B4J app which

- creates RSA Keys
- send the public key to a php script with a message
- the php will encrypt/decrypt/Send the server's keys
- concert/load the server's keys to...

 

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

 

1. Check out this Nice and Clean Dashboard UI Tutorial for B4j
Whiles there, please SUBSCRIBE TO MY YOUTUBE CHANNEL...

 

B4J development tool is similar to Basic4android. The language and IDE are mostly identical.

The APIs (methods, keywords and libraries) are identical in some cases and different in other cases...

 

Just for the fun of it....

Button Create = uses class dlx_generator to create a new puzzle
Button New Puzzle = use a variant of 1 of the 742 puzzles embedded in the code (randomly swapping...