Tutorials & Examples

The B4X documentation booklets are available in PDF format, Download Link.
All files are included in the zip file in the link above, pdf booklets and all the source code.

You can also...

 

Many things have changed in B4X and also in the underlying platforms. I will try to list here all kinds of (old) features that have better alternatives.
B4X is backward compatible so these...

 

"Code smells" are common patterns that can indicate that there is a problem in the code. A problem doesn't mean that the code doesn't work, it might be that it will be difficult to maintain it or...

 

I was playing around with the ListView and found it a great use for a menu system.
Following along as much as possible with the design concepts defined on a Material.io design web site.

See...

 

In the early days of Android services were simple to use and powerful. They allowed doing all kinds of things in the backgrounds with very few restrictions. That's not the case with newer versions...

 

There is an increasing concern about how to publish apps using the app bundle (aab) format. I will try as much as possible to simplify the steps for you.

IMPORTANT UPDATE IN POST...

 

Ui max_co

Hello friends 👨‍💻👩‍
We are here to show the world the power and beauty of B4X-built apps

New post

17-Drawer Ui (Figma)...

 

Not sure if this can be considered a Tutorial, my first attempt.
Lately I started to play with Widgets, mostly for curiosity.
The main problem I encountered was how to design the Layout to make it...

 

SQLCipher is an open source project that extends SQLite and adds full database encryption.
License: https://www.zetetic.net/sqlcipher/open-source/

B4A SQLCipher is a special subtype...

 

After searching all over the forum, I noticed that there are no examples that speak of a Social Network, so I decided to write one.

This example below...

 

The old version of this social network can be found in this link: https://www.b4x.com/android/forum/threads/social-network-created-by-b4a-chat-included.136071/

After several times of work...

 

Hello every one,

The old version (1.30) of this social network can be found in this link: https://www.b4x.com/android/forum/threads/b4a-social-network-version-1-30.141765/#post-921065...

 

This is a B4i and B4A example, which demonstrates various external files related tasks.

The behavior is not exactly the same as the platforms capabilities and behavior...

 

Hi,

I share with you my method to create a library for B4X, based on corwin42's post (Create a wrapper library with Android Studio).
Feel free to improve it and share your modifications...

 

Introduction

The conversion of the first of my B4A Apps to the newer B4XPages structure was not trivial and involved over 20 hours of research, overcoming misunderstandings, and finding...

 

Posted in the B4J forum: https://www.b4x.com/android/forum/t...e-controller-with-b4x-home-automation.158628/

 

Hello B4X community! If you've ever wanted to use Android apps directly on your Windows 10 or 11 PC, you're in luck. I'll provide you with a detailed tutorial on how to achieve this using...

 

I want to share a few tricks when using the Android Virtual Device or Emulator.

1. Increase font and icon size
Go to Settings (gear icons) from drawer/desktop/slide down menu and choose...

 

This example demonstrates how you can add a full screen button to a video. Clicking on the button, starts a new landscape activity and it then uses the native...

 

What I'm about to write would be more suitable for Erel's thread: [B4X] "Code Smells" - common mistakes and other tips, but it's just my opinion and I don't know if he agrees.

I'll give...

 

For years is scare me to convert a big project from Activities to B4XPages, mainly because the app is only for Android (and I don't have plans to IOS or desktop), but in several issues the answer...

 

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...

 

This Tutorial belongs to the Dropbox SDK V2 - Java Library

See this thread for preparing your app to use this Library.
Especially the Manifest-Entry...