Tutorials & Examples

Material Design 1 - Basics

• By corwin42
• Dec 11, 2014

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

Android 5.0 (also called "Lollipop") introduced a new design for apps called "Material Design".

With this tutorial series I will...

 

Attachments

• SimpleMaterialExample2_0.zip

  8 KB · Views: 2,326

Last edited: Jul 31, 2016

Click to expand...

App to sync photos using FileObserver library

• By jsanchezc
• Dec 30, 2016

I will thanks to warwound for FileObserver Library.
Also Thanks to all who share knowledge.

This App receive event when a new file (photo) is created al DCIM folder.
Also You can take photos...

 

Attachments

• JSC_SyncSample.zip

  339.6 KB · Views: 673

Click to expand...

Dropbox SDK V2 - Uploading big files to Dropbox

• By DonManfred
• Dec 22, 2016

This Tutorial will show you all needed Code to do Uploads to Dropbox.

Requirement for this tutorial: you need to have your App Dropbox-ready (see Tutorial I - Authentification).

Asuming...

 

Last edited: May 20, 2018

Click to expand...

[B4X][OOP] Generic Sorter

• By Erel
• Dec 21, 2016

The Sorter class uses quick sort algorithm to sort a list of objects.

There are exactly three assumptions about the list items:
1. All the items in the list are of the same type (or each item can...

 

Attachments

• Sorter.zip

  8.2 KB · Views: 788

Click to expand...

SQL tutorial here

• By hibrid0
• Dec 21, 2016

Hi, I want to share an small course of SQL.
For me was so helpful.
Web:
https://www.sololearn.com/Course/SQL/

App:
https://play.google.com/store/apps/details?id=com.sololearn

This...

 

Click to expand...

Alternative to B4A Bridge: USB Cable Connection

• By wonder
• Aug 4, 2016

Step 1: On your mobile device, make sure you have USB Debugging activated.

Spoiler: How do I do it?

- Go to "Settings".
- Scroll down to the bottom and tap "About phone" or "About tablet",
- Scroll down to the...

 

Last edited: Sep 20, 2016

Click to expand...

Discovering iBeacon devices with BLE2 library

• By Erel
• Nov 8, 2015

This example uses the BLE2 library to continuously scan for BLE devices, looking for iBeacons.
It never connects to any device. It parses the advertising data and calculates...

 

Attachments

• iBeacons.zip

  11.4 KB · Views: 2,207

Last edited: Dec 7, 2015

Click to expand...

Perfect Crop + TouchImageView

• By Douglas Farias
• Jul 30, 2014

Hi all i made a simple crop example, later many try and try its here
if this help someone

Im using the @warwound lib TouchImageView
many thx to @warwound

this sample have one...

 

Attachments

• Crop Sample.zip

  496.3 KB · Views: 2,510
• 10511109_807459332617618_2723995257439844685_n.jpg

  41.9 KB · Views: 1,387
• 10514572_807459602617591_7148849783199956125_n.jpg

  47.5 KB · Views: 1,800
• 10527643_807459462617605_5852512570621737594_n.jpg

  57.2 KB · Views: 1,235

Last edited: Jul 30, 2014

Click to expand...

Custom WebSocket Based Push Framework

• By Erel
• Apr 24, 2014

The online example is currently disabled due to spam

Now that both B4A and B4J support WebSockets it is possible to implement a full push framework solution.
The solution is made of two...

 

Attachments

• Push_Client.zip

  11.5 KB · Views: 4,811
• WebSocketPush.apk

  143.7 KB · Views: 3,153

Last edited: Jul 28, 2014

Click to expand...

DBUtils - Android databases are now simple!

• By Erel
• Mar 30, 2011

Latest version available here: https://www.b4x.com/android/forum/threads/b4x-dbutils-2.81280/

The DBUtils code module is designed to help you integrate SQLite databases in your...

 

Attachments

• DBUtils.zip

  14.4 KB · Views: 6,020

Last edited: Jul 3, 2017

Click to expand...

Automatic adjustment of system date and time through GPS (root only)

• By rtek1000
• Dec 5, 2016

Please see:

GPS tutorial
Toggle Library
Toggle on/off GPS in any Android version
Set phone clock from GPS

Advantages:
- System date and time are updated periodically.
-...

 

Attachments

• GPS DateTime.zip

  10.4 KB · Views: 660
• Android 6.png

  40.7 KB · Views: 726
• Android 2.3.6.png

  13.9 KB · Views: 747

Click to expand...

Simple Code Module to implemente a License file using StringFunctions Encrypt

• By Pedro Caldeira
• Dec 3, 2016

B4X:

Type=StaticCode
Version=6.48
ModulesStructureVersion=1
B4A=true
@EndOfDesignText@
'******************************************************************************************************
'*...

 

Attachments

• Licensing.bas

  3.5 KB · Views: 496

Click to expand...

Colourful Indicator

• By Johan Schoeman
• Jul 18, 2015

It comes from here. The project displays as an example a colourful battery level indicator. Lib files are in the /files folder of the B4A project. The indicator will only update/redraw when...

 

Attachments

• FitChart.zip

  42.2 KB · Views: 727

Last edited: Jul 18, 2015

Click to expand...

SQL tutorial

• By Erel
• Dec 2, 2010

Update 2018:

New video tutorial:


The source code is available here...

 

Attachments

• SQL.zip

  8.1 KB · Views: 12,462

Last edited: Oct 2, 2019

Click to expand...

[Example] Creating a sticky service - long running background tasks

• By rtek1000
• Nov 25, 2016

Please see the original post:

About sticky service - long running background tasks...

 

Attachments

• Services_example.zip

  9 KB · Views: 803
• Screenshot_2016-11-25-12-23-53.png

  18.9 KB · Views: 842
• Screenshot_2016-11-25-12-35-40.png

  77.4 KB · Views: 869
• Screenshot_2016-11-25-12-37-41.png

  46.7 KB · Views: 800

Last edited: Nov 25, 2016

Click to expand...

Creating and Packaging a Wear App

• By barx
• Sep 5, 2014

This tutorial will show you how to create an app for a Wearable device and how to package it so it auto installs.

What is Android Wear?
For those that do not know, Google has released...

 

Attachments

• WearTest(handheld).zip

  109.1 KB · Views: 1,047
• WearTest(wearable).zip

  5.5 KB · Views: 1,006

Last edited: Sep 8, 2014

Click to expand...

Android Beam Tutorial

• By Erel
• Nov 25, 2015

Android Beam is a feature introduced in Android 4 that allows one device to transfer a message to another device by placing the devices back to back. The communication is based on NFC.

The main...

 

Attachments

• Beam.zip

  8.2 KB · Views: 1,187

Last edited: Nov 16, 2016

Click to expand...

How to make games

• By Informatix
• Sep 12, 2013

How to make games​

A great idea, but a disappointing result

You woke up one morning with a great idea for a game. You rushed to your phone to convince your best friend to...

 

Last edited: Oct 22, 2014

Click to expand...

Shared Code Modules

• By Erel
• May 8, 2014

Edit: shared modules are still supported however more powerful options are available in newer versions of B4X: https://www.b4x.com/android/forum/threads/86587

B4A v3.80 adds support...

 

Last edited: Jun 19, 2018

Click to expand...

Auto send KeyCodes.KEYCODE_BACK at runtime

• By Ganiadi
• Nov 1, 2016

Hi,
How to send / trigger the KeyCodes.KEYCODE_BACK at runtime without user clicking it

tks

 

Click to expand...