Tutorials & Examples

Hi all,

My contribute to the community a TTS service for 2 Activitys, you can add more activitys...

If you like this please press "like"

Thanks

camolas

 

See attached project. I have created this simple torch (on / off) by making use of java code found on the web and compiling it with Simple Library Compiler. Library files inside the /files folder...

 

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...

 

I noticed this being asked a few times so I thought I'd share the version I've created.

This implementation requires that you have a server with PHP and MySQL. I am by no means a PHP or MySQL...

 

Hi all. In this example we have Raspberry Pi Rasbian and Android App ( communicate via BlueTooth ).

Through Android we give the command to access and turn off/on the LED, and from the Raspberry...

 

Hi

Here is a tutorial that shows the steps of how to make an Android connection to MS SQL Server using jRDC2.

Download tutorial here:
Attached the Mobile...

 

This example no longer works as it is based on an old Twitter API.
An updated example is available here...

 

An improved version, based on CallSubDelayed is available here.
This example demonstrates how to work with more than one activity and how to pass information between the activities.
In...

 

Hello Everyone,
wants to have a two dimensional database.
Is it feasible using the great DBUtils by Erel.

the table should look like this...

 

Pending confirmation by Erel, I post three functions about arrays and maps that may be useful.

The first is to verify that an object variable is an array:

Public Sub IsArray(Var As Object) As...

 

This is an ULV example I wanted to share for a long time, since I thought it was *very* cool.

It demonstrates:
- Sticky headers
- Swipe gestures
- Animations (appearing out)
- Selected State...

 

This is an UltimateListView example that I made with a help of @Informatix and your library:
https://www.b4x.com/android/forum/threads/lib-chargeable-ultimatelistview.22736/

It...

 

The attached example presents the user with a two-level hierarchical view of data and uses ULV to implement the following:

• Showing the hierarchy using indentation of sub-items
• Drag/Drop...

 

By default, when there is an uncaught exception the program will show a message box with the error title and the user will be asked whether they want to continue or not.

There are several...

 

Every developer must understand this article if developing any kind of network communication app.

Android os recent versions put end apps users privacy at the heart of its platform, the network...

 

Normally a homescreen widget can only update itself every 30 minutes. A lower value is not possible in the ConfigureHomeWidget() call.

But what if you want to create something like a clock which...

 

To deliver more engaging viewing experiences to their users, many Android OEMs are experimenting with new, super widescreen smartphones. Samsung has just announced a new flagship device, the...

 

A common task we face while enhancing our apps is the need to update the structure of a running DB.
This is relatively easy if you know for sure that your users will all go from version 1 to...

 

I decided to become Google's darling. After a very old B4A app, that went perfect for many many years (API 8, targetSDK 14), was threatened to be thrown out of the app store, I decided to waste my...

 

A small example like loading an image with PostMultipart and PHP, I have been useful, you can adapt it needs.

Code B4A

Sub CargaImagen
    Dim j As HttpJob
    Dim img As String =...