Tutorials & Examples

Generate random valid EAN13 barcode string:

Public Sub BarcodeEAN13() As String
    
    Dim brcod As String = Rnd(100000000,214000000)
    brcod = "950" & brcod  '<<< change the beginning 3...

 

After having used the RSS Viewer library in the past, and now finding that it won't function with my secure sites, I decided to start with Erel's XUI CustomListView example and then...

 

Here is a nice tool that visualizes the JSON like a diagram. Pretty cool.

JSON Crack | Online JSON Viewer - Transform your data into interactive graphs

JSON Crack Editor is a tool for visualizing into graphs, analyzing, editing, formatting, querying, transforming and validating JSON, CSV, YAML, XML, and more.

jsoncrack.com

 

Every developer must understand this article if developing any kind of network communication app.

Android os recent versions put end apps users privacy at the heart of its platform, the network...

 

Intel's Bridge technology will allow Android apps to run natively on Windows 11, now Microsoft released the beta version。

1. download windows11 from...

 

In this example project you can see how to add an auto play feautre to the AS ViewPager.

[B4X] [XUI] AS ViewPager based on xCustomListView

Hey, thanks to @KZero for his good zPager class, i was able to extract a few things from it to make this cross platform view. I spend a lot of time in creating views, some views i need by my self, but some views not and to create a high quality view cost a lot of time. If you want to support...

www.b4x.com

...

 

Hello All
Here we have an simple example on how you use your Android device GPS in conjunction with OpenWeather API, this is just a simple example and can obviously be changed and updated by...

 

Hi to all
Based on this link https://www.b4x.com/android/forum/threads/b4x-cross-platform-chat-layout-example.112649/#content
I have added MQTT.
It's a simple example that I want to share...

 

Google never seizes to surprise us and its latest miracle is the following:

In order to fix this no matter if you have an EmailList set with the testers I have done two things. I do...

 

This is a example how to use the AS_TabMenuAdvanced together with the ASPopupMenuAdvanced.

For this example you need the 2 libs...

 

This applies to Google Billing V4.

I was following the tutorial to add in app billing to my app and I found that it would not work in test...

 

Searching the internet I came across this site that cumulates all the necessary data for the B4A developer:

Android API Levels

A quick reference table of Android versions with SDK & API levels, version codes, codenames, cumulative usage, and more.

apilevels.com

 

This is a small example to demonstrate what is possible with the beautiful view...

 

This Tutorial is how to use the free service from fixer.io
in your own apps.

Fixer.io is a free JSON API for current and historical foreign exchange rates published by the European Central...

 

The soon to be released versions of B4A, B4i and B4J include a new feature named: designer script extensions. The new feature allows calling B4X code from the visual designer scripts.
Note that...

 

Hi,
I played around with push notifications based on Firebase Cloud Messaging (FCM).
I followed the tutorial at...

 

Well, from today I am here to help you create more beautiful applications.
B4X Family is a wonderful yet very simple tool for designing functional and beautiful applications
I have been acquainted...

 

Hello to you all,
Welcome to Sheldon Coopers and Amy Farrah Fowlers fun with flags

Here is a simple example on using B4XPages with both an SQLite database and also a CSV file with multiple...

 

Hey everyone,

This is a tutorial on how you can add In App Purchases to your Android App in the New Google Play Console.

1) Add GooglePlayBilling library in your project and the following code...

 

Here i'll post one or two examples showing how to use the DownloadManager library.

DownloadManager simple example.
Here's what must be the most simple way to use DownloadManager...