Tutorials & Examples

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

Why does this happen?
Well...

 

This is an example of how to build an app and sent intents to your pebble.

 

This intends to be a collection of my work here in b4x, this will cut accross the areas.

Code Snippets

MSMySQL_SelectHelper
MSMySQL_DeleteHelper
MSMySQL_InsertHelper...

 

Hi, am happy to share this project of mine.
What it does is, it accepts normal YouTube link and gets its direct download link from this website https://bitdownloader.com.
The direct download...

 

This example uses SimpleMediaManager to show a list of 400 top sites, based on Alexa dataset.

Each item is made of two panels and a label:
- Panel for the favicon.
- Panel for the...

 

After searching all over the forum, I noticed that there are no examples that speak of a Social Network, so I decided to write one.

This example below...

 

My OS of choice is Linux (Mint-11) so having to dual-boot out to Windows any time I wanted to run B4A was a pain. I tried running B4A via VBox, but when bridging to my android device I got a list...

 

I am presenting a test project - Compass. Post #1
- displays TRUE HEADING with local magnetic declination.

Tested in parallel with the application AndroiTS GPS Test v.1.48 Free...

 

Introduction

I've been developing mobile application for over 25 years (Telxon, Symbol, Windows Mobile, Xamarin, CF.net). Up until now the barcode scanners were integrated into the mobile...

 

Hi,
I have assembled a few examples and I added the code to have a system to control via Bluetooth remote viewing of clips from youtube with two smartphones. A "slave" to be connected with a hdmi...

 

Service Module using CallSub.

A very simple example. I thought you had to use CallSub from an Activity, but had it backwards.

 

Just bought an Android TV box and I mentioned that you can connect to the bridge via LAN (usually WiFi). Even it shows "Not connected to wireless network" and doesn't show a ip address the...

 

I was playing around with the ListView and found it a great use for a menu system.
Following along as much as possible with the design concepts defined on a Material.io design web site.

See...

 

Here's a link to my new tutorial (in french):
Comment font-ils ? #4

The translation by Google Translate in english is horrible. The translation by Bing Translator is much better.

 

Hi
If you use your device with usb debugging in b4a,maybe you love to mirror your device monitor in windows look like other android emulator
Don't worry
I found Android mirror
With this...

 

My need was to sync calendars in which user 'A' changes the calendar and sends the change to other users by writing records to the hosted database.
The other users query periodically to see it...

 

I noticed a lot of beginners are confused about how to use the WebViewExtras library so I made a detailed example.
If you find it useful, kindly consider buying me a coffee.

Code works on Android...

 

Hi,

For an app i'm working on I've created this settings menu class. Currently it is used to set a global value called language in the main activity. Of course you...

 

Hi

I would like to share with you this small example on how to use ABPhysicsEngine and GameSprite View together.

I would like to thanks the authors for those greate libraries...

 

Hi,

normaly B4A use UTF8 encoding, but can create files in ANSI too, but be carefull !
Windows an a Western PC use ANSI codepage 1252, this is in B4A "WINDOWS-1252".
Mostly the encoding...