Tutorials & Examples

B4A Convertidor de Numeros a Letras

 

This is another example of GameView: GameView - Create 2D Android games - Part I

This is a simple "jumping" game where the user controls the movement by tilting the device...

 

hi,

this is a simple example that shows how you can use a scrollview and create a photo gallery.

(source code is included)

have fun

 

This example implements a simple "walkie talkie".

(src: wikipedia)...

 

I am happy to announce that the B4A tutorial and reference book "Rapid Android App Development using BASIC" by Wyken Seagrave has now...

 

Note: You should use B4A 6.0 or above for this tutorial.

In the first Material Design tutorial we created a simple app with Material Design for Android 5.0 (Lollipop) devices. But what about...

 

This is an example of choosing a phone number from native android contacts picker.

 

GoogleTasks are a Task list (ToDo List, Shopping List, whateveryouwant list)

In this small Tutorial i want to share my findings while i played around with GoogleTasks. In fact i´m not...

 

I share this little code to handle translation within the app

regards

 

Hi all,

I see a very nice book for programming PI, Arduino and more with B4A

I hope somebody like this...

 

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

 

Hi,

Here is how you can set the scale mode of an ImageView like CSS background-size property.

'scale = cover,contain,fill
Public Sub SetImageView(iv As ImageView,bmp As Bitmap, scale As...

 

This guide is obsolete ! It is no more updated.
Please use the B4X Booklets.

Here is a Beginner's Guide in pdf format.
The source code for the example programs is included.

All...

 

Google Play App Signing service allows developers to let Google store the app signing key for them.
Developers need to use a different key, the upload key, to sign the app before release.
The...

 

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...

 

if you want run any shell command as superuser(you must have rooted phone), try this:

Dim Command, Runner As String
Dim StdOut, StdErr As StringBuilder
Dim Result As Int
Dim Ph As Phone...

 

* * * UPDATE * * *

July 8th, 2012 - New DataBase Class http://www.b4x.com/forum/additional-libraries-classes-official-updates/22118-class-databases.html


JUST POSTED - The...

 

Edit: Better to use CLVExpandable class: https://www.b4x.com/android/forum/t...g-or-collapsing-xcustomlistview-items.106148/

Compatible with B4A...

 

1. Edit: In B4XPages the permission result event signature is: Wait For B4XPage_PermissionResult (Permission As String, Result As Boolean)
2. Important to read...

 

Error:
It might happen that, when combining multiple native (JNI) libraries, your Android app will crash with an UnsatisfiedLinkError.

Why does this happen?
Well...