Tutorials & Examples

The app I'm building will allow the user to configure a series of timed actions, then execute them in order using "play" controls looking much like a music player (play/pause, skip...

 

A few days ago I've helped a developer with implementing a MJPEG client: https://www.b4x.com/android/forum/threads/73702/#content
It was a good experience as while implementing it I've...

 

Hi everyone !

I would like to share my own way to manage multi languages for my Android App.
I'm sure there are more than one method to do it, I just want to share mine.

This functionnality is...

 

UPDATE

Please ensure you use https:// to call the Google fcm api. "Out of the sudden" one of my apps didn't work anymore

$ch = curl_init();
        curl_setopt(...

 

This is an old tutorial. I recommend to instead watch the visual designer video tutorial: https://www.b4x.com/etp.html

There are several features in B4A that help you target Android...

 

Edit: Tutorial about BitmapCreator performance: https://www.b4x.com/android/forum/threads/b4x-bitmapcreator-maximizing-performance-with-bc.93907/


I made some tests to better...

 

Ciao a tutti, ho creato un nuovo corso rivolto a chi già si muove un po con B4A e non è proprio alle prime armi. Il...

 

[UPDATED]

Lately I've fallen into the habit of using Not instead of <> for Boolean comparisons - eg: Not(a = b) instead of a <> b. I'm not sure why I started doing this - probably because I think it...

 

Hi everyone,

in the following link you can find an animation about how the AES128/Rijndael cipher is implemented. As you will see, it is a mix of shifting/mixing/substituting (simple or by matrix...

 

This example shows how to work with the GPS library.

The GPS object is declared in the Starter service. It is easier to put the GPS in a service and not in an Activity as the...

 

This tutorial will demonstrate how you can use CustomBuildAction attribute to deploy to multiple connected devices at once.

The "additional" devices should be connected in USB debug mode. This...

 

Hi everyone,

I do not know if this is a suitable tutorial for this forum but I just found out and I am absolutely thrilled with it. There is a way to send SMSs from your mobile phone even from...

 

The purpose of this tutorial is to show a way of compiling Kotlin into your developed library as a “fat” JAR (a JAR file containing all necessary dependencies and classes bundled in).

Compared to...

 

Started here i released a tutorial about wrapping a library for b4a.
Basically this is the same here but i´ve caputed the hole process

Have fun (or be bored watching it). Hope it helps a...

 

Edit: If you are using B4A v7.8+ then a newer version of B4A Sdk Manager is preinstalled. Follow these instructions instead: https://www.b4x.com/b4a.html#installation

The GUI...

 

https://www.facebook.com/groups/177632729563622/

 

1. This tutorial is about BitmapCreator v3.5+.
2. It is relevant for B4A, B4i and B4J.
3. The features discussed are only needed when making hundreds or more drawings per second.

Drawing...

 

I know it has already been said that it is not easy to change colour of the progressbar.

but would this solution be possible to use within B4A?

How to Add Text Over a Progress Bar on...

 

This is a new feature added in B4A v8.0.

Starting from Android 8.0, services cannot be simply started while the app is in the background or not running at all. Background means that there isn't...

 

XUI library v1.4 adds support for asynchronous msgbox dialogs.

The API is simple:

xui.MsgboxAsync("Hello", "World")...