Tutorials & Examples

I have had some luck using JavaCV inline, here is how to do it:

Download this:
http://search.maven.org/remotecontent?filepath=org/bytedeco/javacv/0.11/javacv-0.11-bin.zip

Extract the .zip...

 

I am leaving this project here for now. The majority of the work has been done to extract the critical information of a QR code - it is reported in the text box to the right of the qr...

 

The attached project (VariousUtilities.zip) has a large number of Bitmap and String Utilities. There is also a utility that lists the sensors of your device in the Log. Three B4A classes are...

 

Check this other excellent example from @Jack Cole.

To help the new members to make money with B4A, I tried to compile all the relevant Admob code (except mediation) of the...

 

This is what I have done to be able to control the width/height of the scanning window in Nelson's project posted at...

 

For those having problems with the Android Videoview, here is a possible alternative that may be worth trying.

It's a javascript open source HTML5 video player for playing videos in a webview...

 

The attached project shows the use of the USB library to communicate with Midi Devices over USB. I realize that this may open a can of worms, as it seems nothing about Midi communication is...

 

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...

 

Important: This tutorial is for educational purposes only, so we are not encouraging you to use this information for illicit purposes.

Required Andoird 4.4+ (sdk 19+)...

 

Hi,

I decided to post this working example in the hopes that it can be useful to some people, and also maybe eventually someone will update it. I find database one of the most useful things in...

 

As you know, Map is a kind of list of pairs of data; each pair is composed of a key and a value which can be of any type.

An example that I believe can be useful:

You have a beautiful table...

 

Attached project simulates a 7 segment LED digital clock. No libs other than the B4A core lib are required.
You can also try this analog clock here

 

When you register to FCM your app will receive a FCM token. Another app can send a message to this token. Probem here: How do I know the token of another device/user? Usually you have a server...

 

Hi all.
I found this example in some old folders on my pc and decided to share here.
it is a simple example of how send a firebase notification via php

<?php
        $url =...

 

p/s: i have uploaded patch file audio.xml

you must replace this file to your core library folder
(Exam: C:\Program Files (x86)\Anywhere Software\Basic4android\Libraries)

Thank @Erel and...

 

The attached project has a dual purpose:
1. Send Morse Codes with the camera flash
2. Serve as a Torch

The Morse Code functionality might be useful when you are lost in mid ocean and need to...

 

Update: Code to reconnect added


I've bought a BT handheld scanner on Ebay for about 45€ like this:


It comes with a sheet with barcodes which can be scanned to do some...

 

Update 29/8/2018: i uploaded new version without FIREBASE to help who dont need

B4A is very good app to build Android app.
I want to use it built app same as Android Studio, so i make a...

 

hi i make a simple code using the google and intent *-*

This code is very very simple and call the native crop later save the image
with native camera or galery

#Region  Project Attributes...

 

B4A-Interpreter

I've made a B4A interpreter that runs B4A-Code on Android
to write easy B4A-test programs on my Phone.
To make an app only copy the source code back to the...