Tutorials & Examples

Hi, How do I display a animated GIF?
Now it just shows up as a static image.

 

[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...

 

@Pendrush recently introduced its wrap of the In-App Review Library.
After a rework, the solution now works great...

 

Hi,

On one of my projects, I had to transfer sensitive data from Android to PC but - with RC4 encription.
I wrote a little code that I want to share with you...
Maybe Android supports RC4...

 

When I try to start B4A, I get a .net error that says

"Unable to find a version of the runtime to run this application"

I tried uninstalling and reinstalling .net, but that didn't help...

 

There is a nice "Getting Started" article in the August Nuts and Volts magazine:

Fred Eady, "Putting Basic4Android in the Driver's Seat", Nuts and Volts, August, 2012 (pp 68-73)

Baxter

 

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...

 

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...

 

Hi all,

I see a very nice book for programming PI, Arduino and more with B4A

I hope somebody like this...

 

How do you make changes to the basic layout (design) of a program? I opened the following sample file: DataBaseProgSample1.5.b4a I wanted to change the sizes of the edit fields, but when I...

 

Every time your app draws a pixel on the screen, it takes time. Every time your app draws an opaque pixel to replace something that has already been drawn, it wastes time. Drawing a pixel more...

 

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...

 

B4A: Getting Started for Delphi Developers

Borland introduced the Delphi programming environment in 1995. At the time Delphi was a revolutionary new tool for Microsoft Windows-based application...

 

I wanted to provide this simple code for beginners like me.
The code is derived from the one written by the my teacher Klaus here.

This ListView is made with a ScrollView inside of which is...

 

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 hope I have got this example right. Any positive criticism or improvements will be welcome!
I have made this to try learn and understand how this all works. This could also help others to...

 

Hi guys. I write here hoping to help a few people.

Recently I started a project that makes heavy use of user personalization. I had bad experiences with nine patches in the past, even though I...

 

Two people have complained that the EPUB version of the B4A-Rapid book version 12-50 is corrupt.
We have not been able to reproduce any errors.
We can read the EPUB on a Windows 11 PC using...

 

An example of using Listview.
Open and save dialogs.
Screen orientation.
Don't forget to twist.

Done on 7 inch tablet.
B4A 2.3

 

The attached project is a "short cut" that will enable you to create Progress Indicators for your projects. It makes use of GIF files to simulate the progress indicators. The B4A...