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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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Latest activity
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Latest activity
JGParamo
reacted to
Peter Simpson's post
in the thread
B4R Library
ArduinoBLE GATT - Peripheral & Central in one
with
Like
.
Hello everyone, This has been a long time coming, but B4R now has an ArduinoBLE library supporting both Peripheral and Central roles...
Jan 21, 2026
Johan Schoeman
reacted to
William Lancee's post
in the thread
B4J Library
[B4J][PyBridge] PyWorks: a Class to Facilitate Running Python Code
with
Like
.
This class arose from my experience with PyBridge. PyBridge is a powerful interface to Python. With PyBridge you can use Python code in...
Jan 21, 2026
S
Segga
posted the thread
iOS Question
[SOLVED] Can I change the launch screen color to black?
in
iOS Questions
.
Is there a way to change the launch screen color? The white background flash that appears before the actual app loads is extremely...
Jan 21, 2026
asales
posted the thread
iOS Question
AdSizeMediumRectangle and SIZE_FULL_BANNER
in
iOS Questions
.
In the documentation of iAdmob: https://www.b4x.com/b4i/help/iadmob.html#adview_size_full_banner I get this information to...
Jan 21, 2026
Johan Hormaza
reacted to
Peter Simpson's post
in the thread
B4R Library
ArduinoBLE GATT - Peripheral & Central in one
with
Like
.
Hello everyone, This has been a long time coming, but B4R now has an ArduinoBLE library supporting both Peripheral and Central roles...
Jan 21, 2026
Johan Hormaza
reacted to
Peter Simpson's post
in the thread
B4R Question
ArduinoBLE lib wrapping EMPTY issue
with
Like
.
Hello Everyone, I'll be releasing my rArduinoBLE for B4R, I wasn't going to do so originally, but after @rwblinn tested it and gave me...
Jan 21, 2026
asales
reacted to
Erel's post
in the thread
iOS Question
How to use iAdMob ADAdSizeMediumRectangle with admob 3
with
Like
.
You are referring to a different inline code. This is the correct ones: #if OBJC - (NSArray *)GetAdaptiveSize:(float)width {...
Jan 21, 2026
aeric
reacted to
William Lancee's post
in the thread
B4J Library
[B4J][PyBridge] PyWorks: a Class to Facilitate Running Python Code
with
Like
.
This class arose from my experience with PyBridge. PyBridge is a powerful interface to Python. With PyBridge you can use Python code in...
Jan 21, 2026
Johan Hormaza
reacted to
Erel's post
in the thread
B4A Library
Updates to internal libraries
with
Like
.
JavaObject v2.07 - fixes the issue discussed here...
Jan 20, 2026
JGParamo
reacted to
DonManfred's post
in the thread
Android Tutorial
Working with Calendars using ContentResolver (Query, Insert, Update, Delete)
with
Like
.
Hello, i´m playing around with the Calendars on my Device and want to Query them. I found out how it works using ContentResolver...
Jan 20, 2026
kimstudio
reacted to
William Lancee's post
in the thread
B4J Library
[B4J][PyBridge] PyWorks: a Class to Facilitate Running Python Code
with
Like
.
This class arose from my experience with PyBridge. PyBridge is a powerful interface to Python. With PyBridge you can use Python code in...
Jan 20, 2026
JGParamo
reacted to
Colin Evans's post
in the thread
Share My Creation
Calendar with Database
with
Like
.
Many thanks to 'walt61' who pointed me in the correct path many times. And thanks to 'DonManfred' who originally came up with the...
Jan 20, 2026
JGParamo
reacted to
Erel's post
in the thread
B4J Tutorial
[PyBridge] The very basics
with
Like
.
PyBridge is a framework that allows accessing Python libraries from within B4J. It works by starting a Python process that connects to...
Jan 20, 2026
JGParamo
reacted to
William Lancee's post
in the thread
B4J Library
[B4J][PyBridge] PyWorks: a Class to Facilitate Running Python Code
with
Like
.
This class arose from my experience with PyBridge. PyBridge is a powerful interface to Python. With PyBridge you can use Python code in...
Jan 20, 2026
P
Pinyo
reacted to
Peter Simpson's post
in the thread
B4R Library
ArduinoBLE GATT - Peripheral & Central in one
with
Like
.
Hello everyone, This has been a long time coming, but B4R now has an ArduinoBLE library supporting both Peripheral and Central roles...
Jan 20, 2026
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