iOS Tutorials

This tutorial is relevant for B4i v4.40+.

App icons

iOS apps require a wide range of icon sizes. Starting from 20x20 and up to 1024x1024.

B4i will create all icons automatically based on...

 

This is a B4A + B4i project that shows a possible method for handling the keyboard visibility changes.
Resizing the CLV will cause the list to lose the scroll position. Instead of...

 

Ola

Erel's Overview from Walts B4xGoodies

B4I

Class - Ads - Beaconparser B4i
Class - Colour - Color Picker [class] [custom View]
Class - Database - Keyvaluestore...

 

Hello,

With the great help from Erel, I want to post a very short and easy tutorial for showing facebook audience network ads on our iOS apps. This will be a short one as I described every step...

 

This is a short tutorial/code snippet on how to successfully implement Touch ID in your app.
Thanks to @Semen Matusovskiy for his code.

You need this OBJC Code

#IF OBJC
#import...

 

Hello to you all,
Here is an extremely simple example on how to easily recreate Google Trends results using B4XPages with B4i and the xChart library. In this example I used Google...

 

HI everybody, it will be interesting to know how to add launch images on a IOS app?

Here is Apple guidance...

 

Hello to you all,
I decided to recreate this simple but effective game example, the game is based on the B4XPages library. The game is designed for hand, eye and memory coordination, so I called...

 

Hello to you all,
Welcome to Sheldon Coopers and Amy Farrah Fowlers fun with flags

Here is a simple example on using B4XPages with both an SQLite database and also a CSV file with multiple...

 

Hello to you all,
Here is a simple example on retrieving data from a REST API requested using the JSON Generator (you could also use http URL download), the same JSON library is also used to parse...

 

Hello All
Here we have an simple example on how you use your iOS device Location in conjunction with OpenWeather API, this is just a simple example and can obviously be changed and updated by...

 

hi, B4X is definitely the best platform to generate applications, but every time I go to work with push notification I panic because I can't get the way to create development and production...

 

hi
this full Example CubeExample ( GPUImage gruop)
THIS example showing the video is a 3D square
I collected the codes and put them inside the code main b4i
the wrapper class inside main ...

 

B4i libraries are written in Objective C. You need to use a Mac with Xcode and you need to know Objective C.
From my experience it is more difficult to write B4i libraries compared to B4A / B4J...

 

HI all
this Example Image Face Detection
Contains a lot of codes:
Find the color of the face
Find the face, eyes, and nose
Find the angle of the face
Find a smile
Eye open or closed
Correctly...

 

I just found out that Application Loader is no longer exist or missing from the latest XCode 11.5 or 11.6 so to upload our B4i app, we need to download Transporter from the App Store.

...

 

Mac, Local Build Server, and Xcode are needed.

Now you can show an image in push notification just like android.

Usually in ios, the system handles the push notification. But there...

 

Hi, how can I pass the parameter Page1 (for example), if I'm using B4XPages.?

I tried.. Dim mp As Page = B4XPages.GetPage("B4XMapPage")

But I get an error....

   Dim avc As...

 

This is not an official tutorial and is just one option for developing cross platform apps with b4x. I have found it to work very well in creating cross platform apps that share their code base...

 

This example demonstrates how you can use a different code module for each page.

B4i structure (like B4J) is very flexible. Pages are regular objects like all other objects. You can use a single...