One of the most commonly used iOS application architectures is MVVM: Model View View-Model.
As you’re no doubt aware, MVVM was proposed to combat the tendency towards “Massive” View Controllers when doing classic MVC (Model View Controller) development in UIKit. …
Design patterns come and go, and one of the fads currently ascendant in the iOS/Swift programming world is the concept of Immutable Objects.
To quote Wikipedia:
In object-oriented and functional programming, an immutable object is an object whose state cannot be modified after it is created.
Pretty straightforward. Immutable objects…
We’ve all written code where we need some function to create and return a configured object.
func makeButton(_ title: String?) -> UIButton {
let button = UIButton()
button.translatesAutoresizingMaskIntoConstraints = false
button.titleLabel?.text = title
button.titleLabel?.font = .headline
button.setTitleColor(.red, for: .normal)
return button
}The pattern is the same. Create a variable…
If you’re an Apple developer then there’s no doubt you’ve seen and heard all about SwiftUI, Apple’s new declarative framework for creating apps that run on iOS, iPadOS, macOS, watchOS, and tvOS.
But what you may not know is that Android also has a brand new declarative framework for creating…
Don’t get me wrong. I’ve used quite a few languages in my career, and I wouldn’t want to go back to any of them. Swift in 2021 is modern, type-safe, highly-functional, and with new features like actors and async/await it keeps getting better and better.
I love Swift.
But… there…
With Actors and Async/Await, Apple has finally brought modern, asynchronous concurrency support to the Swift language. The syntax and concepts are powerful, clean, and elegant.
But Async/Await and Actors both suffer from a single, minor, almost insignificant issue… we can’t use them in our code.
I’ve written about this problem…
I was in an Apple store last week looking to buy another HomePod. No, not the new HomePod mini, but the original HomePod. Only to find out that they were no longer in stock in the store — or online, for that matter.
Yes. I know that the original HomePod…
Apple announced iPadOS 15 during WWDC 21 and — to put it mildly — this wasn’t the iPadOS I was looking for.
Time to move along.
To understand exactly what it was I was looking for, and why, we need to go back in time to Apple’s “Spring Loaded” event.
…
In a recent article, Using Data Transfer Objects (DTO) in Swift Code, Steven Curtis makes an argument for using DTO’s in Swift code as a standard practice. I disagree with that premise, and in this article I hope to demonstrate why.
First, we need to define our terms. Here I’m…
From what I gather, you're adding objects primarily for Separation of Concerns.
Okay... I get that. But adding another object means that I now have to write code that maps data to and from the model to the domain object. So the question here is that did the benefits of…
