Tutorials & Examples

Question: How can I build a layout with X controls spread horizontally or vertically?

Answer: You can use the designer script for this. As the designer script engine (currently) doesn't support...

 

Several developers were interested in adding support for signature capturing in their Android application.
The attached code module makes it easy to capture the signature and save it to a file...

 

What is Version Control?

Spoiler

Version control software keeps track of every modification to the code in a special kind of database. If a mistake is made, developers can turn back...

 

Part 1: The key

This is just a write up of my findings regarding the exchange of encrypted data between B4A/B4J and LockBox3 (Delphi). This write up focuses just on LockBox3's implementation of...

 

Google Maps uses the GPS as its location provider. It will not show the current location if GPS is disabled.
It is possible to switch to a custom location provider.

For example, here is me...

 

Installation instructions:

- Register your app in Google developer console: https://console.developers.google.com
You need to enable Google Maps Android API.
Then click on...

 

Hi all.
I found this example in some old folders on my pc and decided to share here.
it is a simple layout example, the app is whatsapp

This example use a clv and tabstrip

...

 

Hi all.
this example play Happy birthday to you music with beep. (Audio librarie)

Sub Globals
    Private lNotas As List
    Private lbNotas As Label
    Private tocando As Boolean
End Sub...

 

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 notcreate a ventilator in B4A.

On this example have, image...

 

Hi all.
I made a simple collision example, where our player (black square) can collide with any other view that has the tag = 1

This example is in Portuguese obviously because I am Brazilian, I...

 

This is a full working example of real time ObjectDetection (in this case, cars) using cascadeClassifiers, getting the input from a recorded video file, making use of Videocapture. The example was...

 

If you have modern processor from AMD (Ryzen) - x86-variants of AVD cannot work by default.
Android emulator now requires the processors with a virtualization only.

By default Intel processors...

 

============= MANIFEST =====================

AddManifestText(
<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="19"/>
<supports-screens android:largeScreens="true"...

 

Hi,

On one of my projects, I had to transfer sensitive data from Android to PC but - with RC4 encription.
I wrote a little code that I want to share with you...
Maybe Android supports RC4...

 

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...

 

Blockchain
A digital ledger in which transactions made in bitcoin
or another cryptocurrency are recorded chronologically and publicly.
In more general terms, it’s...

 

Hi,

If your Facebook and firebase configurations are all ok but the auth event is not raising or if you are getting An account already exists with the same email address but different...

 

This app save each image into a server via FTP
and if you want download all images to merge into a video

Esta App salva cada imagen en un servidor via FTP
y si lo deseas puedes bajar todas las...

 

Hi everyone,

there is a new way to create the localizator class csv file and it is as easy now as it could never be in the past. Just watch the following video:

(23-6-2019)

In order...

 

I finally have reliable, stable printing to a blue tooth printer (Citizen CMP-10 and CMP-20) from my Samsung 5570L Galaxy Mini Android Device running v2.3.6

Attached is a skeleton project...