Tutorials & Examples

[B4X] Supabase - The Open Source Firebase alternative

Supabase is an open source Firebase alternative. It provides all the backend services you need to build a product. Supabase uses Postgres database with real-time capabilities. Basically, supabase provides an interface to manage postgres database that you can use to create table and insert, edit...

www.b4x.com

This is a simple B4X broadcast example with supabase as backend.

...

 

Based on the original example: https://www.b4x.com/android/forum/threads/b4x-bitmapcreator-cross-platform-falling-sand-game.94276/

This is just a conversion from individual platform into...

 

Hi all,

This is a simple example of moving files across the internal/external memory boundary.
EG Transferring a CSV file from an external location to an internal folder to load a database in the...

 

Great tutorial about building MQTT topic:

MQTT Topics, Wildcards, & Best Practices – MQTT Essentials: Part 5

Learn about MQTT Topics, naming conventions, MQTT $SYS topics, MQTT Prefix, MQTT Topic Wildcards, and more in this MQTT Essentials article.

www.hivemq.com

 

I had to deal with a database format transformation problem from Firebird to SqliteDb
I want to share my experience because I've already seen some users who asked questions about Firebird...

 

I just wanted to say thank you. I am new to coding, and trying to learn it. There is a lot of useful information if you search and dig for it.. no pain no gain LOL

Also some cool guys I...

 

Hi guys,

how to use :

1. copy the starter into your project

    If Starter.GPS1.GPSEnabled = False Then
        ToastMessageShow("Please enable the GPS device.", True)...

 

1. Download the skins from https://github.com/larskristianhaga/Android-emulator-skins

You can download skin for just one device or download all as an archive

2. Create a...

 

[B4X] Supabase - The Open Source Firebase alternative

Supabase is an open source Firebase alternative. It provides all the backend services you need to build a product. Supabase uses Postgres database with real-time capabilities. Basically, supabase provides an interface to manage postgres database that you can use to create table and insert, edit...

www.b4x.com

Supabase Storage offers the functionality to transform and resize images dynamically. Any...

 

Searching the internet I came across this site that cumulates all the necessary data for the B4A developer:

Android API Levels

A quick reference table of Android versions with SDK & API levels, version codes, codenames, cumulative usage, and more.

apilevels.com

 

Recently for a web project I was forced to seek a solution in the use of Regex. I have found this site which teaches you and allows you to check the use of regex for matching strings etc. I...

 

Yesterday I have found out something searching in Google and checking it, it seems that it worked for me (until ipv4 is deprecated). So this is by 50% a tutorial and by 50% a request for other...

 

Finally, I got my project completed. I learnt a lot of things about Android from this community. This community has generously provided source code to various UI's and more, without which I would...

 

I ran into this one today and fortunately my penny dropped rather quickly, though I didn't find anything on the forum about this error; hence this post as it might be useful for others. I was...

 

[B4X] Supabase - The Open Source Firebase alternative

Supabase is an open source Firebase alternative. It provides all the backend services you need to build a product. Supabase uses Postgres database with real-time capabilities. Basically, supabase provides an interface to manage postgres database that you can use to create table and insert, edit...

www.b4x.com

This is a simple B4X chat example with supabase as backend.


Setup...

 

Trying to find an automated way to build a B4X library, I found this method, I'd like to share for improvements and suggestions.
I'm using B4J as the development environment for the sake of...

 

I wanted a freeware pdf viewer without ads, tracking, data collection, and what have you. Besides, it wasn't obvious (to me at least) how to make an app that would be offered as default to open a...

 

[B4X] Supabase - The Open Source Firebase alternative

Supabase is an open source Firebase alternative. It provides all the backend services you need to build a product. Supabase uses Postgres database with real-time capabilities. Basically, supabase provides an interface to manage postgres database that you can use to create table and insert, edit...

www.b4x.com

In this example, we will take a look at how we can implement authentication using Google...

 

ENGLISH:
Good morning,
I would like to share the free course "Preparing development environment for B4 IOS".
This course helps prepare the B4I development environment and the MAc to start...

 

I have written a few Financial Calculators over the past couple of weeks, and one approach I've found extremely useful is Approximation and Guesswork.
So I figured, why not share the approach with...