Tutorials & Examples

The online example is currently disabled due to spam

Now that both B4A and B4J support WebSockets it is possible to implement a full push framework solution.
The solution is made of two...

 

Latest version available here: https://www.b4x.com/android/forum/threads/b4x-dbutils-2.81280/

The DBUtils code module is designed to help you integrate SQLite databases in your...

 

Please see:

GPS tutorial
Toggle Library
Toggle on/off GPS in any Android version
Set phone clock from GPS

Advantages:
- System date and time are updated periodically.
-...

 

Type=StaticCode
Version=6.48
ModulesStructureVersion=1
B4A=true
@EndOfDesignText@
'******************************************************************************************************
'*...

 

It comes from here. The project displays as an example a colourful battery level indicator. Lib files are in the /files folder of the B4A project. The indicator will only update/redraw when...

 

Update 2018:

New video tutorial:


The source code is available here...

 

Please see the original post:

About sticky service - long running background tasks...

 

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...

 

Android Beam is a feature introduced in Android 4 that allows one device to transfer a message to another device by placing the devices back to back. The communication is based on NFC.

The main...

 

How to make games​

A great idea, but a disappointing result

You woke up one morning with a great idea for a game. You rushed to your phone to convince your best friend to...

 

Edit: shared modules are still supported however more powerful options are available in newer versions of B4X: https://www.b4x.com/android/forum/threads/86587

B4A v3.80 adds support...

 

Hi,
How to send / trigger the KeyCodes.KEYCODE_BACK at runtime without user clicking it

tks

 

Here is my first tutorial for the community!

This tutorial will show you how to sign a B4A generated apk with a non-B4A keystore. I needed a way to do this for myself since I had some apps out...

 

The anchors feature is simple to use and is...

 

JSON format is a a format similar to XML but usually it is shorter and easier to parse.
Many web services now work with JSON. JSON official site: JSON

Using the new JSON library, you can...

 

The code in this tutorial should not be used for new projects.
New tutorial: https://www.b4x.com/android/forum/threads/android-bluetooth-bluetoothadmin-tutorial.14768/#content

This...

 

Large projects and especially projects maintained by a group of developers usually require a source control system.
Using SVN with Basic4android is quite straightforward with a client tool such as...

 

Hi there

I'm hoping there are other methods of doing this..., if so, let's please share.

Anyway, a client was indicating the app I just sent does not work on their S7 samsung phone. So me, #bang...

 

This is the same project as what you can find here wrapped by @somed3v3loper - but only converted to inline Java Code. It was originally posted here

Copy...

 

On your form you use an EditText to input time. If you want to calculate with this, may be the following example will help:

Sub AddTime(OriginalTime As EditText,HoursToAdd As Int,MinutesToAdd...