B4X Programming Forum

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B4A - Android

Android Questions

Please post any technical question in this forum.
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drgottjr
Android Question Looking for a program, or help writing it. Below possible?

Tutorials & Examples

Android development starts here. Please do not post questions in this sub-forum.
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stevel05
Android Example MidiSystem Midi Monitor

Additional libraries, classes and official updates

Users contributed libraries, classes and official updates.
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69.6K
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69.6K
W
Tool B4Xgoodies: a maintained library/class/code module/... inventory (last updated 2025-07-19)

Code Snippets

A place to share useful code snippets.
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855
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4.6K
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Matt S.
Android Code Snippet Back to edge-to-edge with B4A Ver13.4 and SDK 35

Bugs & wishlist

The place to discuss bugs and missing features.
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LucaMs
Wish Constants of PhoneSensors

Share Your Creations

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Magma
Share My Creation [B4X] Video Conference, Audio, Text Chat app - meet@point - Source Code only 20€

B4i - iOS

iOS Questions

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B
iOS Question Closing the DatePicker panel

iOS Tutorials

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172
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fredo
iOS Tutorial Using AppRefresh and Processing background tasks in your app

iOS Libraries

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213
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Messages
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K
B4i Library [class] PDFView

iOS Code Snippets

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137
Messages
484
Messages
484
J
iOS Code Snippet Show iOS System Dictionary Screen

iOS Bugs & Wishlist

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740
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2.9K
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A
Wish Exec script instead of sending to Builder

iOS Share Your Creations

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157
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897
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897
ilan
Share My Creation Quizon - Let's Quiz

B4J - Desktop, Server and Raspberry Pi

B4J Questions

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88.4K
Messages
88.4K
stevel05
B4J Question remove created page

B4J Tutorials

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888
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7.8K
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7.8K
aeric
B4J Tutorial Pakai framework v5
  • aeric

B4J Libraries & Classes

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756
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12K
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Mashiane
B4J Library [Web][SithasoDaisy5] - Create WebSites & WebApps with the power of the Abstract Designer (OpenSource)

B4J Code Snippets

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542
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max123
B4J Code Snippet Get a size of structure

B4J Bugs & Wishlist

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5.4K
Messages
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Erel
Bug? Unexpected result of initialising a Long value
  • Erel

B4J Share Your Creations

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677
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5.5K
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teddybear
Share My Creation [B4J] An odometer control

B4R - Arduino, ESP8266 and ESP32

B4R Questions

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2.3K
Messages
13.1K
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Cableguy
B4R Question Anyone uses STM32 in B4R ?

B4R Tutorials

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204
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1.2K
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Arf
B4R Tutorial ESP32 Camera Picture Capture and Video Streaming! (Updated with code!)
  • Arf

B4R Libraries

Additional libraries
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154
Messages
895
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895
peacemaker
B4R Library ESP32extras Library

B4R Code Snippets

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125
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367
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367
peacemaker
B4R Code Snippet LED lighting PWM control

B4R Bugs & Wishlist

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258
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1.1K
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1.1K
peacemaker
Bug? IDE parsing HEX

B4R Share Your Creations

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138
Messages
445
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445
peacemaker
Share My Creation i2c bus devices scanner with found address description

General

The Business Forum

The place for business (ads, sales, money, ...) related questions and tips.
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446
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3.5K
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3.5K
aeric
ROI for Custom Software
  • aeric

🐢👩‍🏫 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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122
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1.3K
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1.3K
Marc DANIEL
MusicBoxCenter

Share Your B4X Story

What are you using B4X for? What have you learnt along the way?
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48
Messages
427
Messages
427
K
B4X to the rescue .... @ilan

Game Development

Game development related questions and discussions
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364
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3.3K
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3.3K
R
Games Develop full 3D games with WebGL library

Chit Chat

The place for open discussions.
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44.6K
rabbitBUSH
19GB 7zip file Headers Error

Forum Discussion

Please post any question or idea regarding the forum here.
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946
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6K
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Magma
Problem Solving Skill

Job Offers

Do you have a job offer / project for developers? Post it here.
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859
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3.7K
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3.7K
almontgreen
B4A mouse coordinate on android to arduino - communicate mouse down coordinate. App runs on top of all other android apps.

More Languages

Italian Forum

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Vasmar
Italian Spostare La cartella Android dal disco C a D

German Forum

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15.8K
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SirHarry
German keyword für ausgewählte checkbox

Spanish Forum

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19.4K
Messages
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G
Spanish Buscar y obtener URL de video YouTube

French Forum

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681
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J
French Copie externalisée d'un fichier

Portuguese Forum

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213
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969
Messages
969
J
[B4X] Abrir PDF

Chinese Forum

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240
Messages
805
Messages
805
aeric
B4A爱好者自学群

Even More Languages

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398
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Theera
[บทเรียน,B4X] การกำหนดตำแหน่งพิกัดจำเพาะ(gravity)ของ B4XViews

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