Deep dive into decoding JSON to Swift
Codable is standardised approach to encoding and decoding data in different formats to and from Swift. In simple this means converting say from JSON to Swift and back. Additionally you can do the same conversion from and to other formats too.
The Codable mechanism along with the JSONDecoder and JSONEncoder…
Computer Vision
Are you looking to make your physical business contactless? COVID-19 has transformed how business with physical presence need to interact with their customers. Many customers now expect the ability to perform transaction on their mobile devices. Restaurants in the UK only allow to view their menu through your mobile phone…
Swift Programming
Observing and getting notified when properties changes
KVO and KVC or Key-Value Observing and Key-Value Coding are mechanisms originally built and provided by Objective-C that allows us to locate and interact with the underlying properties of a class that inherits NSObject at runtime. …
MODULAR IOS
Learn how to modularise a SwiftUI based framework for iOS
This is an update to my original post Reusing code with Swift frameworks. The original post showed how to reuse UIKit based code packaged as a framework. Since then Apple has introduced SwiftUI and this post will show you how to reuse your SwiftUI code.
SwiftUI has brought a natively…
UIKit
Learn how to create and manage UIScrollView and its content programmatically
Storyboards and Interface Builder(IB) are great when you start a new UIKit based iOS project. However they can soon loose their appeal as you develop more complex screens, UIs and user flows.
Alternatively you can start develop your UI programmatically. …
Swift Programming
Learn how to do Dependency Injection using Swift Property Wrappers
This article is about how to do Dependency Injection in Swift using Property Wrappers. I assume you are familiar with Dependency Injection and Swift Property Wrappers. Furthermore you should be familiar with the basics of Swift and iOS development.
But before I show you how to do dependency injection using…
Swift Programming
Learn what property wrappers are and how to use them
What is a property wrapper in Swift?
A property wrapper adds a layer of separation between code that manages how a property is stored and the code that defines a property.
In all honesty when I read this bit from Swift.org’s documentation I did not quite understand what property…
Concurrency
Learn how to perform multiple task concurrently in iOS
How do you execute multiple pieces of code at the same time? When beginning coding we are taught code that executes serially or one after the other in order.
Let’s look at an example. Let’s say you’re making a simple salad. Here are the ingredients:
- lettuce
- tomatoes
- red onion
- sweetcorn
- …
Computer Vision
Everything you need to get up and running to develop and debug an OpenCV C++ algorithm
Looking to solve Computer Vision problems using OpenCV? Maybe you are developing an OpenCV algorithm to be used on multiple platforms like iOS and Android.
A great way to develop cross-platform OpenCV algorithms is by writing them in C++ and using Xcode. Both platforms support running and binding to C++…
Security
Does the word cryptography sound cryptic? Read on to learn about cryptography and remove the mystery
The word Cryptography is derived from the Greek words Kryptos and Graphy. Kryptos means hidden and Graphy means writing. Thus Cryptography means hidden writing.
Cryptography:
the science or study of the techniques of secret writing, especially code and cipher systems, methods, and the like
This post is an introduction…
