Tutorials & Examples

In this tutorial we will use the following web service to convert currencies:
http://www.webservicex.net/CurrencyConvertor.asmx/ConversionRate?FromCurrency=USD&ToCurrency=EUR...

 

It only prints to the log. Change the "message" in Sub Activity_Create

 

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...

 

Android 6.0 Marshmallow introduced a new floating text selection toolbar, which brings the standard text selection actions, like cut, copy, and pastes, closer to the text you’ve selected...

 

Creating and Using a Virtual SD Card - A Tutorial

Here is a tutorial for creating a virtual SD-Card, copying your SD-card files and reading them. It includes screen-shots of each stage and a...

 

This tutorial will show you how to create an app for a Wearable device and how to package it so it auto installs.

What is Android Wear?
For those that do not know, Google has released...

 

So, Google released the new Android Wear platform and obviously we all want to try it out. I have been very lucky and have managed to get my hands on a real device. A Samsung Gear Live to be...

 

A much improved version is available here.

You can use the code in this example to show data in tabular form.

The table is...

 

Edit: Things have changed with newer versions of Android and new restrictions. Sticky services should not be used any more.

Background service example...

 

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...

 

With this video I intend to show how simple it is to create a native based B4A lib, using my Native Library Generator.
For that purpose, I'll be writing and testing my code in Visual...

 

I have been working on a tool to create a prototype app using JQuery Mobile inside B4A. Currently the only way to create a prototype is via code. You can later distribute this prototype as an apk...

 

The Type keyword is used to create your own types or structures. You can use such types to create simple structures that group some values.
However you can also use it to create more complex...

 

This is for people like me - B4A libraries for Dummies 101 (via SLC). I will attempt to explain it the best I can (there is nothing in this library that one can't do via B4A code. This is purely a...

 

I'm currently developing an App that'll be released for Android and IOS. It presents "files" to the user, allows them to select a file and then presents the content for editing, and finally allows...

 

It has been discussed in other places on wish lists etc that each time we compile our projects under B4A that it would nice to have a BUILD number increment by 1.

Using the CustomBuildAction...

 

The attached project has 10 classes that create the following 1D and 2D barcodes:

1. QR Code - 2D
2. Datamatrix - 2D
3. Aztec Codes - 2D
4. PDF417 - 2D
5. Code 128
6. EAN8
7. EAN13
8. Code 39
9...

 

Hello Erel:

Do we have a Logo "Created by b4a" or similar to put it in our programs? It is a good idea to extend the use of b4a...

 

Searching the internet I found a service that allows you to convert any google sheet into a json api, it has a free version that allows you to consult and add data, connecting to the api is quite...

 

[EDIT: my Adapt your layouts using SetLayout is more useful]

Waiting for this feature in the Designer
(I don't know if Erel will add it, see these threads...