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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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How to adapt the APK developed with low version B4A to high version Android phones
wuxuetie
Apr 27, 2025
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2
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797
Apr 28, 2025
wuxuetie
W
What happens when an error occurs after running the file linked below?
bskotu555
Apr 27, 2025
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4
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aeric
Running NLG (NativeLibraryGenerator)
aedwall
Apr 27, 2025
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aedwall
R
Trying to update buttons on a panel but only first button being updated
Robert S
Apr 26, 2025
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Apr 27, 2025
Robert S
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MLKit TextRecognition and Text Orientation
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Apr 26, 2025
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Apr 27, 2025
Pitag
P
b4a_bridge.apk where are download old Version for SAMSUNG NOTE 4 ?
a6000000
Apr 24, 2025
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Apr 27, 2025
Erel
Solved - Release or Release (obfuscated)
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Apr 26, 2025
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1
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J
How to copy Scrollview contents to CustomListView
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Apr 25, 2025
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1
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Erel
Type com.google.firebase.encoders.DataEncoder is defined multiple times: error while trying to run document scanner demo.
MrKim
Apr 23, 2025
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3
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1K
Apr 27, 2025
Erel
Loading Image loads cached image
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Notice enabled changed
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Apr 25, 2025
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Guenter Becker
M
B4XPages stop in background on android 15
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Apr 24, 2025
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Apr 25, 2025
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Locked
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Mar 24, 2025
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F
Zebra Datawedge usage
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F
java.lang.SecurityException: Starting FGS with type location callerApp=......
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Solved
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Apr 9, 2025
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968
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MrKim
How can I click Button1 and call the camera to take photos, and load the photos into the ImageView1 control?
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Apr 23, 2025
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Firebase Auth usage?
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1
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988
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aSyncStream flush and sync
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Apr 18, 2025
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Apr 22, 2025
Erel
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