Tutorials & Examples

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...

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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...

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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...

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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...

 

Localizator is a cross platform solution for strings localization.

The strings are defined in an Excel workbook.

They...

 

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...

 

This issue was solved with the B4A 13 Beta 6.

I saw many users (include me) with the problem "The filename or extension is too long", when try to compile the project with...

 

A C# friend who uses MAUI to develop Android apps, but the friend works well, so I recommend him to use B4A, and he got started after a few hours of basic tutorials. He implemented a way to make...

 

[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

How to change the description text of a property:

AS_Settings1.MainPage.GetProperty("ExportDatabase").Description =...

 

example of getting file property information from uri provided by content chooser or received file shared to the app. Curtesy of Erel’s example: Received Share. Shows File name, Mime Type...

 

Have never done a B4A "wrapper" before making use of JavaObject only and thought I would see if I could get the PieChart of mpAndroidCharts implemented by using B4A's JavaObject only...

 

Hello friends, i wanna share with you a code that can you use it to get video resolutions avilables in played video (m3u8,mp4 ...) and show it in listview to select one of this qualities; :
do not...

 

This simple function converts Markdown-formatted text so that it can be used as CSBuilder.

This is particularly useful if, for example, you have created a text in MS Word with bold and...

 

[B4X] [XUI] AS Onboarding [Payware]

AS Onboarding is a view you can use to attract first-time users when they land on your app. Or to present new features after a major update, with pictures and descriptions. Or to collect user data at the 1st start of the app, many things are possible. The View is modular and can also be...

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In this example I show how you can easily change the theme e.g. from a dark theme to a light one and how to...