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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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Latest activity
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Aldo's
posted the thread
Android Question
Open a pdf file
in
Android Questions
.
Good morning everyone. Up until now, I've used the PDFium V. 1.4 library to view PDFs in an app. Now the problem arises with the 16 KB...
Mar 11, 2026
Alexander Stolte
reacted to
ranul's post
in the thread
Other
B4J v10.5 with integrated Code Bundle tool has been released
with
100%
.
Hi @Erel, What will help a lot to AI is if the layout file (the bjl) will be a text file and not a binary file. I use Claude Code to...
Mar 11, 2026
Claudio Oliveira
reacted to
Erel's post
in the thread
B4A Library
[B4X][LOA] ListOfArrays - lightweight, powerful and flexible collection
with
Like
.
v0.91 - API changes in LOASet. New methods: OrRowsSelections, AndRowsSelections and GetRowIndicesByValue Examples were also updated.
Mar 11, 2026
Claudio Oliveira
reacted to
Erel's post
in the thread
B4A Library
[B4X][LOA] ListOfArrays - lightweight, powerful and flexible collection
with
Like
.
CSV Example: StringUtils.LoadCSV returns a list with arrays of strings. We create a LOA based on this list and then call...
Mar 11, 2026
Claudio Oliveira
reacted to
Erel's post
in the thread
B4A Library
[B4X][LOA] ListOfArrays - lightweight, powerful and flexible collection
with
Like
.
v0.92 improved the support for Null values. Some examples: This is our data: Dim table As ListOfArrays =...
Mar 11, 2026
Claudio Oliveira
reacted to
Erel's post
in the thread
B4A Library
[B4X][LOA] ListOfArrays - lightweight, powerful and flexible collection
with
Like
.
Saving and loading: Assuming that all values are serializable with B4XSerializator (RandomAccessFile library) then: Dim ser As...
Mar 11, 2026
aeric
reacted to
xulihang's post
in the thread
B4J Library
ThumbnailView
with
Like
.
I need to display images in thumbnail and manage them. I didn't find suitable libraries so I created one. Usage...
Mar 11, 2026
Claudio Oliveira
reacted to
Erel's post
in the thread
B4A Library
[B4X][LOA] DBQuery - SQL made easy
with
Like
.
DBQuery is a thin wrapper around the platforms' SQL libraries: SQL, iSQL and jSQL. Features: A simpler and more coherent API. It fixes...
Mar 11, 2026
scsjc
reacted to
Erel's post
in the thread
B4A Library
[B4X][LOA] DBQuery - SQL made easy
with
Like
.
DBQuery is a thin wrapper around the platforms' SQL libraries: SQL, iSQL and jSQL. Features: A simpler and more coherent API. It fixes...
Mar 11, 2026
byz
reacted to
Erel's post
in the thread
Android Code Snippet
[B4X] Throw errors / exceptions
with
Like
.
Cross platform code to raise exceptions. Mostly Useful for libraries development. Private Sub ThrowError(Message As String)...
Mar 11, 2026
byz
reacted to
klaus's post
in the thread
B4A Class
[B4x] xFFT Class and b4xlib
with
Like
.
This class performs Fast Fourier Transformations forward and inverse. The class has been updated to a B4XLibrary. The name hase changed...
Mar 11, 2026
Erel
replied to the thread
Other
B4J v10.5 with integrated Code Bundle tool has been released
.
CodeBundle includes the json representation of the layout. The AI should understand it. And you can use this tool to automatically...
Mar 11, 2026
Mashiane
reacted to
Erel's post
in the thread
B4A Library
[B4X][LOA] ListOfArrays - lightweight, powerful and flexible collection
with
Like
.
Saving and loading: Assuming that all values are serializable with B4XSerializator (RandomAccessFile library) then: Dim ser As...
Mar 11, 2026
Mashiane
reacted to
Erel's post
in the thread
B4A Library
[B4X][LOA] ListOfArrays - lightweight, powerful and flexible collection
with
Like
.
v0.92 improved the support for Null values. Some examples: This is our data: Dim table As ListOfArrays =...
Mar 11, 2026
Mashiane
reacted to
Erel's post
in the thread
B4A Library
[B4X][LOA] ListOfArrays - lightweight, powerful and flexible collection
with
Like
.
CSV Example: StringUtils.LoadCSV returns a list with arrays of strings. We create a LOA based on this list and then call...
Mar 11, 2026
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