Tutorials & Examples

Convertir Numeros a Letras

• By hacosta
• Jan 14, 2019

B4A Convertidor de Numeros a Letras

 

Attachments

• ConvLetras2.Zip

  425.1 KB · Views: 783

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JumpingSmiley - GameView example III

• By Erel
• Feb 7, 2013

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...

 

Attachments

• JumpingSmiley.zip

  27.7 KB · Views: 1,974

Last edited: Feb 9, 2016

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Simple Photogallery using a Scollview

• By ilan
• Dec 29, 2018

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

 

Attachments

• ScrollView - B4A.zip

  49.9 KB · Views: 737
• Screenshot_20181228-154021.jpg

  132 KB · Views: 1,004

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Walkie Talkie - Audio streaming over Wifi or Bluetooth

• By Erel
• Jun 30, 2013

This example implements a simple "walkie talkie".

(src: wikipedia)...

 

Attachments

• Walkie-Talkie.zip

  10.7 KB · Views: 11,751

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B4A Book Updated to Version 8.30

• By PhilipBrown
• Jun 19, 2018

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

 

Last edited: Jun 25, 2018

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Material Design 2 - Using the AppCompat library

• By corwin42
• Dec 19, 2014

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...

 

Attachments

• AppCompatExample1_2.0.zip

  8.1 KB · Views: 2,902
• AppCompatExample2_2_0.zip

  8.3 KB · Views: 3,394

Last edited: Jul 31, 2016

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Android Native Contacts Phone Number Picker

• By Hamied Abou Hulaikah
• Jan 4, 2019

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

 

Attachments

• nativeandroidphonenumberpicker.zip

  11.8 KB · Views: 807

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[B4X] Working with GoogleTasks using REST

• By DonManfred
• Dec 26, 2018

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...

 

Last edited: Dec 26, 2018

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Easy Sample Translator inside a Code

• By scsjc
• Dec 28, 2018

I share this little code to handle translation within the app



regards

 

Attachments

• translate.zip

  8.7 KB · Views: 981

Last edited: Dec 28, 2018

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Book for programming Pi, Arduino and more applications with B4A

• By Swissmade
• Dec 27, 2018

Hi all,

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

I hope somebody like this...

 

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No-IP Android client - Access your device over the internet

• By Erel
• Feb 21, 2013

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

 

Attachments

• DynamicIp.bas

  2 KB · Views: 3,311

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Fill or Fit image to ImageView

• By Brandsum
• Dec 26, 2018

Hi,

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

B4X:

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

 

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B4A Beginners Guide

• By klaus
• Jun 6, 2011

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...

 

Last edited: Feb 14, 2020

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Google Play App Signing

• By Erel
• Apr 10, 2018

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...

 

Last edited: Mar 7, 2021

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SQLiteLight four simple SQLite projects

• By klaus
• Dec 7, 2013

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...

 

Attachments

• SQLiteLight1.jpg

  18.6 KB · Views: 6,739
• SQLiteLight2_1.jpg

  41.1 KB · Views: 6,597
• SQLiteLight2_2.jpg

  20.1 KB · Views: 6,060
• SQLiteLight2_3.jpg

  16.4 KB · Views: 5,840
• SQLiteLight2_4.jpg

  32.3 KB · Views: 6,210
• SQLiteLight1.zip

  130.9 KB · Views: 990
• SQLiteLight2.zip

  204.2 KB · Views: 893
• SQLiteLight3.zip

  230.8 KB · Views: 865
• SQLiteLight4.zip

  229 KB · Views: 913

Last edited: Nov 29, 2018

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Running shell commands as SuperUser

• By m0narX
• Dec 14, 2010

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

B4X:

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

 

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New Easy to Use DataBase Functions V1.0 with Samples

• By margret
• Aug 1, 2011

* * * UPDATE * * *

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


JUST POSTED - The...

 

Attachments

• ADR.DataBaseProgram_1.5.zip

  12.6 KB · Views: 2,128
• ADR.DataBaseSample_1.6.zip

  9.3 KB · Views: 2,501

Last edited: Aug 15, 2013

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[B4X] [XUI] Expandable list based on xCustomListView

• By Erel
• Nov 23, 2017

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

Compatible with B4A...

 

Last edited: May 26, 2019

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Runtime Permissions (Android 6.0+ Permissions)

• By Erel
• Jun 8, 2016

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

 

Last edited: Mar 16, 2022

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How to fix the multiple native libraries problem

• By wonder
• Nov 10, 2018

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

Why does this happen?
Well...

 

Attachments

• native-libs.pdf

  157.6 KB · Views: 1,927

Last edited: Nov 11, 2018

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