Tutorials & Examples

The purpose of this tutorial is to cover the various communication options available for B4X developers.

Will start with two important utilities:

• AsyncStreams...

 

AsyncStreamsObject is a small framework built over AsyncStreams.

Instead of sending and receiving bytes, AsyncStreamsObject allows you to send and receive objects. This makes it much...

 

Attached you find a pdf tutorial about Designer Scripts & AutoScale.
It includes Erels Designer Scripts Tutorial and a new AutoScale Tutorial.
It's an extract of two chapters from the next...

 

Having just posted the jFugue jar file and examples of accessing it, I thought it would be a good opportunity to show how I would go about creating a wrapper in B4x for this.

This is only one way...

 

It took me some time to check how GCM works. See Erels example: https://www.b4x.com/android/forum/t...ion-gcm-framework-and-tutorial.19226/#content

A lot of...

 

Hi All,

Below are my notes on getting a widget preview image to appear in the widget list. The preview image appears in place of the app icon (if used).

1) Create a png with the preview in...

 

This tutorial is deprecated. You can still use it to understand the basic communication. A newer one can be found here...

 

These instructions are outdated. Please see the instructions here instead: https://www.b4x.com/b4a.html

 

This is an old tutorial. All new implementations of network solutions should be based on AsyncStreams.

The Network library allows you to communicate over TCP/IP with other computers or...

 

For new projects it is recommended to use OkHttpUtils2: https://www.b4x.com/android/forum/threads/54723/#content

Multipart POST requests are usually used by Html Form components to...

 

I am happy to announce that the B4A tutorial and reference book "Rapid Android App Development...

 

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...

 

See attached B4A project. It implements a digital clock with Arabic numerals. You can edit the png files in the /files folder of the B4A project with something like GIMP and clean them up / change...

 

I think CustomViews are great addition to B4A, one of it's best features, and a fantastic way to increase productivity, reuse code, and add intelligence to the views we use.

The ability to add...

 

1. Looking for application sample b4A to send and receive text messages (chat system) over blue tooth between two mobiles

2. Looking for application sample b4A to receive messages and reply over...

 

StateListDrawable is a drawable objects that holds other drawables. Based on the view's current state a child drawable is selected.
StateListDrawable holds a list of states. States can be...

 

Hi,
I found a site that create style and theme for your app.
You can select color and views and android sdk and other
It return res folder for you that can use in your app.
For use theme in your...

 

This is just some simple inline Java code to check if a device has a Back facing camera, a Front facing camera, and a Flash (it requires the JavaObject library to be enabled).

...

 

Just a small request for the wishlist. It would be nice to be able to use Select Case using the 'greater than' and 'less than' operators <>. It makes for cleaner code than 'if' 'else' and 'end if'...

 

As B4R (Arduino) will soon be released, I've made a short video that shows some of the communication features available in B4X.

Make sure to watch it in HD mode:


The source...