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Welcome to B4X forum!
B4X is a set of simple and powerful cross platform RAD tools:
B4A
(free) - Android development
B4J
(free) - Desktop and Server development
B4i
- iOS development
B4R
(free) - Arduino, ESP8266 and ESP32 development
All developers, with any skill level, are welcome to
join the B4X community
.
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Matt S.
posted the thread
Android Tutorial
Less back and forth with your smartphone and PC
in
Tutorials & Examples
.
As mobile developers, we all have the frustrating experience of taking our eyes off our smartphone and staring at the PC screen, and...
Oct 31, 2025
V
vinpolins
replied to the thread
Android Question
StartServiceAtExact / Receiver or Service ?
.
I used: RestDurationMillis = 1 * 60 * 1000 (1 min) My B4A version is 11.50, if that makes sense (this is the latest 32-bit version for...
Oct 31, 2025
aeric
replied to the thread
Android Question
[SOLVED] B4XPreferencesDialog. Set steps of numeric range to 0.5
.
How about? "options": [ "0", "8.5", "0.5" ]
Oct 31, 2025
josejad
reacted to
jkhazraji's post
in the thread
Share My Creation
Using the webcam to control the mouse
with
Wow
.
Virtual Mouse Using OpenCV (HERE) This project is using the live feed coming from the webcam to create a virtual mouse using hand...
Oct 30, 2025
josejad
posted the thread
Android Question
[SOLVED] B4XPreferencesDialog. Set steps of numeric range to 0.5
in
Android Questions
.
Do you now a way you can choose numbers with 0.5 steps? This don't work { "options": [ "0, 8.5, 0.5"...
Oct 30, 2025
J
jkhazraji
replied to the thread
Share My Creation
Using the webcam to control the mouse
.
Sub Class_Globals Private Root As B4XView Private xui As XUI Public Py As PyBridge End Sub Public Sub Initialize End Sub...
Oct 30, 2025
J
jkhazraji
posted the thread
Share My Creation
Using the webcam to control the mouse
in
B4J Share Your Creations
.
Virtual Mouse Using OpenCV (HERE) This project is using the live feed coming from the webcam to create a virtual mouse using hand...
Oct 30, 2025
Alexander Stolte
replied to the thread
B4J Question
AS_SelectionList - Object should first be initialized (B4XView)
.
Please try
Oct 30, 2025
Alexander Stolte
reacted to
Erel's post
in the thread
B4i - working on refactoring the build chain
with
Like
.
Getting the first ML Kit project to run was absurdly difficult. At least I learnt a few useful tricks along the way...
Oct 30, 2025
sagmill
replied to the thread
B4R Library
library for PCF8574
.
I think this library has a problem with b4r version 4. When I add the library to the program, I get the following error...
Oct 30, 2025
Mashiane
reacted to
cheveguerra's post
in the thread
Share My Creation
jRDC2 MultiDB Server (JSON, HikariCP)
with
Like
.
1. Introduction and Architecture This project is a modified version of the original jRDC2 Server. The multi-database support is based on...
Oct 30, 2025
K
kohlenbach
posted the thread
Android Question
[SOLVED]editfield and Android setup font size change
in
Android Questions
.
Hi, I have editText fields in the layout and if the screen size changes they are auto scaled. My problem is if a user changes in...
Oct 30, 2025
JordiCP
reacted to
Erel's post
in the thread
B4i - working on refactoring the build chain
with
Like
.
Getting the first ML Kit project to run was absurdly difficult. At least I learnt a few useful tricks along the way...
Oct 30, 2025
Gianni M
reacted to
Erel's post
in the thread
B4J Question
[Server] Java runtime version
with
Like
.
No problem. It should work.
Oct 30, 2025
Johan Hormaza
reacted to
Erel's post
in the thread
B4i - working on refactoring the build chain
with
Wow
.
Getting the first ML Kit project to run was absurdly difficult. At least I learnt a few useful tricks along the way...
Oct 30, 2025
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