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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
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Libraries developers questions
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Java Question
First mistake when recompiling an old project
Mar 2, 2026
Sergio Castellari
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[libart.so] art::ConditionVariable::WaitHoldingLocks(art::Thread*)
madrigal115
Jan 7, 2023
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7K
Jan 9, 2023
madrigal115
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Firebase notification body is ellipsized
Mostez
Jan 6, 2023
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Jan 9, 2023
Mostez
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[SOLVED] Error compiling B4A portion of B4x project after moving it to a different computer - animatedcounter.java:1: error
MrKim
Jan 6, 2023
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1K
Jan 9, 2023
MrKim
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Translating an old app to B4XPages: App runs first time fresh, then crashes.
GuyBooth
Jan 8, 2023
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Jan 9, 2023
Erel
C
Video play speed for SimpleExoPlayer
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Jan 8, 2023
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E
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Jan 7, 2023
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A
How to code Sql which has the complex condition?
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Translating an old app tp B4XPAges: How to keep my existing navigation (no left arrow in title bar)?
GuyBooth
Jan 6, 2023
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1K
Jan 6, 2023
Mahares
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Translating an old app tp B4XPAges: How to Add More Menus?
GuyBooth
Jan 4, 2023
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Jan 6, 2023
GuyBooth
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