Tutorials & Examples

These instructions are outdated.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...

 

Part 2 see here: http://www.b4x.com/android/forum/th...a-server-using-httputils2-part-2-mysql.42456/

Well. Today we want to:

- make an app which...

 

The B4A Trial Version allows to get a good impression of the possibilities of B4A.

The trial version is limited to 30 days.

Following steps are needed to use the trial version.

Two solutions...

 

What is the keystore alias password? I know that alias is b4a but how about the password?

 

Hello,

I have a TabHost which holds 4 tabs.
I want to have a list with two columns and a checkbox for each line in the list on the forth tab of the TabHost.

How can I do it? In case it's...

 

Nice & easy: http://www.mysqltutorial.org/import-csv-file-mysql-table/

So you can import Excel sheets by saving as *.csv before or if you have files, just put some delimiters between it.

 

Hi Guys

I would like to share with you something that most of you maybe allready know but also if there are some people that still dont know that, it could be very helpfull for them.

There are...

 

I learned to read XML file, thank you all! Now I need to learn how to change XML elements and save it. file. For example is XML file

<?xml version="1.0" encoding="UTF-8"?>
<group>...