Tutorials & Examples

Some users asked here for a simple SQLite project as an example to make their first steps in SQLite.
The already existing examples seem beeing somewhat complicated for beginners.

These...

 

Dialogs v4 is an extension to @agraham original dialogs library. It requires B4A v7+.

The main changes are...

 

The #AdditionalJar module attribute (introduced in B4A v3.80) allows us to reference external jars.
With the help of JavaObject it is now possible to integrate third party jars without a wrapper...

 

Better implementation, based on B4XPages: https://www.b4x.com/android/forum/t...-asyncstreams-b4xserializator.119011/#content

New video tutorial...

 

Several developers were interested in adding support for signature capturing in their Android application.
The attached code module makes it easy to capture the signature and save it to a file...

 

SQLite Viewer is an open source application that allows you to view the contents of SQLite databases right from your Android device...

 

Here's a library tutorial to hopefully show the basic steps required to create a custom ListView.

The custom ListView creates each ListView ListItem from a layout XML file - your...

 

This tutorial is relevant for B4A and B4J.
During compilation B4A generates Java code which is then compiled with the Java compiler and converted to Dalvik (Android byte code format).
There...

 

The SMB library allows you to access Microsoft Windows Network file system.
You can read more information about this protocol here: Server Message Block - Wikipedia, the free encyclopedia...

 

Better example is available here: https://www.b4x.com/android/forum/threads/mjpeg-cctv-server.73792/

This example is made of two components:

Client - Basic4android program that takes...

 

B4A v6.80 adds several new features related to the ability to format rich strings.

CharSequence is a...

 

The following solution allows you to access your Android device over the internet. The device must be connected to a...

 

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

 

Correct link: https://www.b4x.com/android/forum/t...s-firebase-cloud-messaging-fcm.67716/#content

 

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...

 

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...

 

Remember that that a call to Sleep or Wait For in a resumable sub causes the code flow to return to the parent.

Example:

Sub Button1_Click
Sum(1, 2)
Log("after sum")
End Sub

Sub Sum(a...

 

WebView tutorial

I wanted an easy way to provide in-app documentation such as help screens etc.

I was thinking of going with the CustomListView and then trying to colour some of the lines of...

 

This is a new feature added in B4A v8.0.

Starting from Android 8.0, services cannot be simply started while the app is in the background or not running at all. Background means that there isn't...

 

Android supports a special format of PNG images that can be resized by replicating specific parts of the image.
This images also include padding information.
These images are named nine-patch...