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...

 

[B4X] [XUI] AS FeatureRequest [Payware]

AS FeatureRequest is a lightweight, easy-to-integrate library that allows you to present a list of potential features to your users, enabling them to vote on the ones they find most valuable. By collecting and prioritizing user feedback, you can accelerate the development of the most desired...

www.b4x.com

In this example I show how easy you can display 2 pages, with the features that are under development and...

 

[B4X] [XUI] AS FeatureRequest [Payware]

AS FeatureRequest is a lightweight, easy-to-integrate library that allows you to present a list of potential features to your users, enabling them to vote on the ones they find most valuable. By collecting and prioritizing user feedback, you can accelerate the development of the most desired...

www.b4x.com

In this example I show you how to use supabase as a backend for the AS_FeatureRequest quickly and easily...

 

Well,

As JamesGreaves requested,
"So do you not think it would be of value to have even something like @walt61 has created but online?"...

 

This example is a response to this thread.

You can click the labels to edit Player's name and score.
The results will be showed after click on OK.

Player's name cannot be...

 

I have used @Erel's sample project from here:

Camera2 - Still images and videos

Camera2 library is based on the Camera2 API introduced in Android 5 (API 21). It is designed to work together with CamEx2 class. It is supported by B4A v7.3+. The library will be included as an internal library in the next update. Both image capturing and video recording are supported. CamEx2...

www.b4x.com

Have added a timer to get the preview bitmap every...

 

B4A v13.0+ should be used with targetSdkVersion 34+.

Android 14 continues the longtime trend of making services less flexible and more difficult to use (converging to iOS background tasks...

 

[B4X] [XUI] AS BottomActionSheet

This view makes it quick and easy to let the user make an action. You need: AS_DraggableBottomCard I spend a lot of time in creating views, like this and to create a high quality view cost a lot of time. If you want to support me and further views, then you can do it here by Paypal or with a...

www.b4x.com

In this example I will show you how you can add a small icon to an item and customize it to your needs.

A...

 

For some time now, it has not been possible to place short links to contacts on the home screen via the Contact Apps. Instead, the selected contact is always placed as a widget. However, since I...

 

[B4X] [XUI] AS Settings

Introducing a new library that allows you to create your own settings page with minimal code. This library comes equipped with automatic saving and loading features, making it incredibly easy to manage your settings. It supports booleans, free text, numbers, comboboxes, action buttons and more...

www.b4x.com

This setting allows users to select a color. For example, to change the main app color, which is a premium feature in...

 

hello, a small library of TessBaseAPI "tesseract4android-2.1.0" Ocr, you need to download tesseract4android-2.1.0.aar and junit-4.4.jar as Depends, for the tessdata languages...

 

The user can set live wallpapers by long pressing on the home screen and choosing Wallpapers - Live Wallpapers.
Creating a live wallpaper is not too difficult.
A service is responsible for...

 

Localizator is a cross platform solution for strings localization.

The strings are defined in an Excel workbook.

They...

 

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...

 

Check this other excellent example from @Jack Cole.

To help the new members to make money with B4A, I tried to compile all the relevant Admob code (except mediation) of the...

 

I have just managed to install B4A and make it run (including B4ASdkManager) on my Xubuntu 18.04 and, since I have lost two days and one night putting things together, I thought it will be a good...

 

Hi everyone,

I posted a thread long ago about the audio/video calling over the internet. Here is a simple example of how you can call almost (will discuss below) realtime.

Why only a...

 

Introduction to the libGDX library​

What is libGDX ?

libGDX is a game engine. As we saw in the first tutorial, a game engine provides a framework to create...

 

B4A-Bridge is made of two components. One component is running on the device and the other is embedded in the IDE.
The device side is the server side. It waits for connections and when a...

 

This is a very old project which is unlikely to function correctly on newer versions of Android. The link to the project should still be active and if you want to use it for reference to...

 

Android has very good support for custom input method editors (IMEs).
The downside for this powerful feature is that interacting with the soft keyboard can be sometimes quite complicated.

This...