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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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1.3K
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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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[SOLVED] Error Load Bitmap to ImageView
mayahandayani
Sep 5, 2024
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1
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1K
Sep 5, 2024
mangojack
S
Grab Serial Number of Device
Setlodi
Sep 3, 2024
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2
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2K
Sep 5, 2024
Setlodi
S
Class Defined multiple times (SOLVED)
walterf25
Sep 5, 2024
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2
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Sep 5, 2024
walterf25
R
MLwifi400/ MLScan Google induced 'bug'
RJB
Sep 5, 2024
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0
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974
Sep 5, 2024
RJB
R
A
B4XView SetBitmap
Alex_197
Sep 3, 2024
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1K
Sep 5, 2024
Erel
Solved
(Solved) jRDC2 can someone give example on correct authentication
knutf
Jul 24, 2024
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7
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3K
Sep 5, 2024
aeric
S
B4XPage initialize as object
Scantech
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1
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979
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573
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send email using gmail
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10
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sending text messages through message apps
Zeev Goldstein
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12
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3K
Sep 4, 2024
Zeev Goldstein
S
jdbcSQL - WIFI is detects but not connected app don't use 4G
sigster
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6
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2K
Sep 4, 2024
sigster
S
[B4x] PocketBase Mobile Package - Challenge Anyone?
Mashiane
Aug 25, 2024
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1
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1K
Sep 4, 2024
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sending text messages using messaging apps
Zeev Goldstein
Sep 4, 2024
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11
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2K
Sep 4, 2024
Zeev Goldstein
Spinner how to handle focus_change event
Gianni Sassanelli
Sep 4, 2024
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1
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1K
Sep 4, 2024
LucaMs
S
MlWIFI connection problem.
svein berg
Apr 1, 2023
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2K
Sep 4, 2024
RJB
R
K
Is there any library for B4A to use with raspbery header?
kalarius
Sep 2, 2024
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1K
Sep 4, 2024
Ralph Parkhurst
transferring project - what must be included and what can be dropped?
Zeev Goldstein
Sep 3, 2024
2
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22
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3K
Sep 3, 2024
Andrew (Digitwell)
J
refresh token problem in FirebaseMessaging after RemovePermission(com.google.android.gms.permission.AD_ID)
Jurandir Júnior
Sep 3, 2024
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0
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934
Sep 3, 2024
Jurandir Júnior
J
Open spinner with code
ValhallSW
Sep 2, 2024
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5
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2K
Sep 3, 2024
ValhallSW
Locked
SOLVED: Your manifest file includes the com.google.android.gms.permission.AD_ID permission
Robert Valentino
Jul 14, 2023
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3
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5K
Sep 3, 2024
Jurandir Júnior
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