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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
Latest activity
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Cableguy replied to the thread B4R Library AString for B4R : arduino String for B4R.@Erel, will we ever get a new B4R version? I know the board market is somewhat stable, but, Arduino (628) base boards are no longer THE... -
Almora reacted to Serge Nova's post in the thread Share My Creation Showcasing a High-Frequency Trading (HFT) Arbitrage Bot developed with B4J with
Like.
Hello everyone, After more than a year of silence, I am returning with my most advanced project since I started as a Developer and... -
RRenewMe replied to the thread B4A Library MPAndroidCharts - Various type of graphs / charts (Latest library V1.22 in post #1).Hi, i'am using AS_DatePicker ver. 1.32
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Yes. And delete the builder folders before unzipping. -
Erel replied to the thread iOS Question B4i Local Builder error.Yes. And delete the builder folders before unzipping. -
ilan replied to the thread iOS Question B4i Local Builder error.ok now i am not sure i understand what to do? should i download again the local builder zip from the email i received? if so i will...
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Erel replied to the thread iOS Question B4i Local Builder error.Make sure to delete the Firebase libraries before unzipping the new one. The logs should show the path to the signature file. There...
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ilan replied to the thread iOS Question B4i Local Builder error.Thanks Erel for your reply. i downloaded the zip directly on my mac but still got that error. i will try again. and i will also run the...
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Erel replied to the thread B4J Question buffer.Length vs Blob.A Null field returns Null, not a zero length array. 1. Better to remove the Try / Catch block. 2. If Initialized(Buffer) And...
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Erel replied to the thread Android Question Socket is null inside Connected event (Successful = True) — what can cause this?.Is it possible that you are calling Connect more than once? Or that psocket is initialized after the call? The socket should be...
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Erel replied to the thread Android Question Issue with WebView: Image Upload, Camera Access, and WhatsApp Integration.Check this example: https://www.b4x.com/android/forum/threads/upload-files-with-webview.98623/#content
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Dave O reacted to Erel's post in the thread Android Question Got a Pixel phone + usb connection + Android 16? with Like.
This is a different issue. Application_Error will continue to work as usual. Stopping the service should make no difference. It will... -
Erel replied to the thread Android Question Got a Pixel phone + usb connection + Android 16?.This is a different issue. Application_Error will continue to work as usual. Stopping the service should make no difference. It will...
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Erel replied to the thread Bug? Fix to error: Failed resolution of: Landroidx/core/view/ViewGroupKt.Adding this will probably fix it: #AdditionalJar: androidx.core:core-ktx You need to provide more information - which libraries are...
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Erel reacted to AnandGupta's post in the thread Android Example B4Xgoodies_from_walt61 Online with Like.
What's New Since Last Week (04 Apr 2026 to 11 Apr 2026) B4X B4X VS Code B4X IDE Companion — A Complete Tutorial for Cross Platform...
