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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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B4A - Android
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Android Questions
Please post any technical question in this forum.
Libraries developers questions
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8.1K
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8.1K
Java Question
First mistake when recompiling an old project
Mar 2, 2026
Sergio Castellari
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Android Question
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Old program
JJ-M
Feb 17, 2024
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1
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981
Feb 18, 2024
Erel
J
wrap java code
JJ-M
Feb 16, 2024
Answers
1
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1K
Feb 18, 2024
Erel
B
Solved
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Brad Henderson
Feb 17, 2024
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4
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3K
Feb 18, 2024
Brad Henderson
B
Looking for a subscription library not google play
tsteward
Feb 18, 2024
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0
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965
Feb 18, 2024
tsteward
M
Generate XML from JAR file
MARCELO KROL
Feb 13, 2024
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2
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Feb 17, 2024
MicroDrie
QUESTION : regarding [B4X] [XUI] AS CardSlider
rabbitBUSH
Feb 16, 2024
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2K
Feb 16, 2024
rabbitBUSH
[Firebase Auth] android.content.res.Resources$NotFoundException: String resource ID #0x0
VictorTandil
Jan 31, 2024
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1
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2K
Feb 16, 2024
walterf25
B
[B4X] Looking for a solution to select multiple images and upload them to a REST-api
Bernaert Dominique
Feb 16, 2024
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3
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2K
Feb 16, 2024
Alexander Stolte
Dubble declaration in manifest
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Feb 16, 2024
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2
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Feb 16, 2024
Cenny
[SOLVED] Starter Service doe not appear in running services
Jmu5667
Feb 13, 2024
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13
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3K
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Jmu5667
Solved
Attempt to invoke virtual method 'void anywheresoftware.b4a.objects.collections.List.Initialize()' on a null object refere
Filippo
Feb 16, 2024
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2K
Feb 16, 2024
Filippo
M
problem with Sub SendLargeSms
Masoud44
Feb 13, 2024
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Feb 16, 2024
Masoud44
M
Solved
Focus Title Text on Read Only mode in As_TextFieldAdvanced
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Feb 15, 2024
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8
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3K
Feb 16, 2024
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Clip Path ... I need Help on this one...
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Brian Dean
B
How to detect devices using Erel's GoogleMaps example
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2K
Feb 15, 2024
Jorge Santamaria Magana
Problems connecting to Server
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3K
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OliverA
Solved
hide app icon from theme
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Feb 15, 2024
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4
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2K
Feb 15, 2024
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Remove reference to unused library
warwound
Feb 14, 2024
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5
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2K
Feb 15, 2024
udg
Solved
Doubt On AS_TextFieldAdvanced?
RishiKumar2210
Feb 13, 2024
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8
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2K
Feb 15, 2024
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R
create a map with a loop within
Robby Mamotte
Feb 14, 2024
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10
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3K
Feb 15, 2024
DonManfred
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