Programmatic changing of button images
- By Mark Turney
For my latest app, Less Note 1.0.0 (currently WFR), I wanted to show when a particular colored pen or the eraser was active and the others inactive. So, I used Photoshop to create glowing...
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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
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iOS Tutorials
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Automating the iLibrary Creating with XCODE
The process to creating a B4i Library after build a objectiveC Code is:
Locating the .a and .h files, copy this files to a folder in a another folder with B4Ih2xml.jar and iCore.h
Execute the...
Locating the .a and .h files, copy this files to a folder in a another folder with B4Ih2xml.jar and iCore.h
Execute the...
Designer Script & AutoScale tutorial
- By Erel
Designer script feature allows you to write simple scripts that manage the user interface in the visual designer.
The main advantage of the scripts over the program code is that you can see the...
The main advantage of the scripts over the program code is that you can see the...
Porting (game) from B4A > B4i and the differences
- By sorex
Hello,
Last night I ported a small game (CLAUStrophobia) from B4A > B4i just to get used to B4i & IOS and to know the differences in the B4i language & OS.
As I ran into some issues and some...
Last night I ported a small game (CLAUStrophobia) from B4A > B4i just to get used to B4i & IOS and to know the differences in the B4i language & OS.
As I ran into some issues and some...
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DrawBitmapRotated over ImageView
- By Mark Turney
The latest version of my Face Flashcards app (waiting for review) had one issue that was nagging me. I had used the designer to create an imageview called "flashCards", for which a randomly...
How to "Screenrecording"
- By ilan
You can record the screen of your device for free.
what you will need is an IOS8+ device and OS Yosemite on your mac
what you will need is an IOS8+ device and OS Yosemite on your mac
Static Modules and Classes
- By Erel
There are two types of modules in B4i: static modules and classes.
A class is a template. At runtime you can create any number of instances based on the class template.
Each instance will have...
A class is a template. At runtime you can create any number of instances based on the class template.
Each instance will have...
Workaround for strange pause during installation
- By Erel
In the last week or two I encountered a strange pause which happened during full installations.
There were two symptoms:
1. The installation paused for a few seconds after it started.
2. It took...
There were two symptoms:
1. The installation paused for a few seconds after it started.
2. It took...
[example] Coordinates Calculator source code
- By Erel
The code of Coordinates Calculator app is attached.
You can download this app from Apple App Store: https://itunes.apple.com/us/app/b4i-coordinates-calculator/id915366768?mt=8
You can download this app from Apple App Store: https://itunes.apple.com/us/app/b4i-coordinates-calculator/id915366768?mt=8
Attachments
B4i Change Log (versions history)
- By Erel
v10.0 - November 18, 2025
B4i compilation process has been rewritten from scratch based on Apple's latest methodology. All native libraries were rebuilt and most external dependencies were...
B4i compilation process has been rewritten from scratch based on Apple's latest methodology. All native libraries were rebuilt and most external dependencies were...
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