B4X Programming Forum

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B4A - Android

Android Questions

Please post any technical question in this forum.
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mcqueccu
Android Question AS_TabMenuAdvanced scroll on multiple tabs,divider and icon position left

Tutorials & Examples

Android development starts here. Please do not post questions in this sub-forum.
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AnandGupta
Android Example B4Xgoodies_from_walt61 Online

Additional libraries, classes and official updates

Users contributed libraries, classes and official updates.
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Johan Schoeman
B4A Library ANPR with YOLOv8 + OCR (B4A) – rectangles OK, OCR optimized

Code Snippets

A place to share useful code snippets.
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884
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Cadenzo
Android Code Snippet Using SQLite

Bugs & wishlist

The place to discuss bugs and missing features.
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Erel
Wish Force IDE Reload for externally edited code
  • Erel

Share Your Creations

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HNICofCODE
Share My Creation AI Code Injector

B4i - iOS

iOS Questions

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Carlos marin
iOS Question Error Compile upgrading to B4i 10.00

iOS Tutorials

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Erel
iOS Tutorial CSBuilder - AttributedStrings builder

iOS Libraries

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215
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Gijsen
B4i Library Photo Browser Library

iOS Code Snippets

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139
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500
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Erel
iOS Code Snippet Connect to wifi network programmatically - NEHotspotConfigurationManager

iOS Bugs & Wishlist

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Erel
Wish Latest version of LocalBuilder Version 10 with changes made since the first release

iOS Share Your Creations

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156
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869
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J
Share My Creation b4i : View PDF pages in an imageView

B4J - Desktop, Server and Raspberry Pi

B4J Questions

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teddybear
B4J Question FTP-ERROR

B4J Tutorials

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W
B4J Tutorial How to handle "java.io.IOException: WaitForMultipleObjects error=6, Invalid handle"

B4J Libraries & Classes

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802
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tummosoft
B4J Library Thread library

B4J Code Snippets

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586
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J
B4J Code Snippet b4j Get Battery Info

B4J Bugs & Wishlist

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5.5K
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5.5K
aeric
Wish Option to copy full sub path

B4J Share Your Creations

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738
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aeric
Share My Creation MiniHtml2 Code Generator
  • aeric

B4R - Arduino, ESP8266 and ESP32

B4R Questions

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13.3K
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Peter Simpson
B4R Question ArduinoBLE lib wrapping EMPTY issue

B4R Tutorials

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209
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peacemaker
B4R Tutorial esp32 MCU family SDK in Arduino v2.3.7

B4R Libraries

Additional libraries
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165
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922
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922
Peter Simpson
B4R Library Adafruit_Neopixel - Based on V1.15.2 (Release date 15/10/2025)

B4R Code Snippets

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132
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381
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381
peacemaker
B4R Code Snippet [ESP32] WatchDog

B4R Bugs & Wishlist

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259
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peacemaker
Wish #include "file.bas"

B4R Share Your Creations

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148
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475
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475
Cesar_Morisco
Share My Creation I’d like to share my newest project using B4R with ESP32

General

The Business Forum

The place for business (ads, sales, money, ...) related questions and tips.
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446
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Magma
Business Continuity - UK Based
  • Magma

🐢👩‍🏫 Teaching Programming with B4X

B4X is a great option for teaching programming.
This forum is intended for parents and teachers who teach or like to teach programming using B4X.
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128
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1.3K
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1.3K
P
[B4A] pmMindmap: a mindmap app written in B4A for a tablet

Share Your B4X Story

What are you using B4X for? What have you learnt along the way?
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52
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428
Messages
428
epiCode
How Lognote Helps People in Everyday Life and Work

Game Development

Game development related questions and discussions
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368
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zed
Games Kings and Pigs - X2 [B4x Game in progress]
  • zed

Chit Chat

The place for open discussions.
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mcqueccu
Build ANY App - Poster

Forum Discussion

Please post any question or idea regarding the forum here.
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959
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LucaMs
Bots - I wonder if Copilot can be useful.

Job Offers

Do you have a job offer / project for developers? Post it here.
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B
UK Job Opportunity

More Languages

Italian Forum

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ken87
Italian Estendere un video full screen
  • ken87

German Forum

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German Alternative zum PlayStore

Spanish Forum

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Situ LLC
Spanish (SOLVED) La App no es compatible con el telefono

French Forum

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French Gestion des caractères accentués

Portuguese Forum

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Claudio Oliveira
Uma duvida com o Xml2Map

Chinese Forum

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M
我的第一程序出炉：自用的短信通知群发

Even More Languages

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Theera
[บทเรียน, Tool] รวมไฟล์AAR กับJAR เข้าด้วยกัน

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