April 2020
A summary of all Swift by Sundell content published during March 2020.
Weekly Swift articles, podcasts and tips by John Sundell.
Weekly Swift articles, podcasts and tips by John Sundell.
A summary of all Swift by Sundell content published during March 2020.
Let’s continue exploring the SwiftUI layout system by taking a look at a couple of more advanced techniques, such as how we can align views with dynamic dimensions and how to read a view’s geometry in order to build custom layouts.
Let’s take a look at the SwiftUI layout system by starting to build a full-screen view from scratch. Along the way, we’ll use many different techniques and APIs, which lets us explore the underlying rules of the SwiftUI layout system.
This week, let’s explore the topic of UI modularization in the context of SwiftUI, by taking a look at a few different techniques that can be useful in order to avoid trading Massive View Controllers for Massive Views.
A summary of all Swift by Sundell content published during February 2020.
Let’s take a look at how SwiftUI’s various stacks and spacers can be used to achieve many kinds of flexible, adaptive layouts with very little code. While SwiftUI does include several more advanced layout APIs, stacks and spacers are a great starting point for most UIs.
This week, let’s take a look at a few different ways of configuring views when using SwiftUI, and the sort of pros and cons that each of those approaches gives us in terms of code structure and flexibility.
Meng To, founder of Design+Code, joins John to go on a deep dive into SwiftUI from a design perspective, and to talk about how developers and designers can build scalable and flexible UIs using it. Also, structuring view code and components, the power of modifiers, and how SwiftUI compares to other UI tools and platforms.
Indie iOS and watchOS developer “Underscore” David Smith joins John to discuss the current state of Apple Watch app development, and how SwiftUI is changing how watchOS apps are built. Also, managing and prioritizing multiple projects, Swift vs Objective-C, and whether SwiftUI is actually production-ready.
Josh Shaffer, engineering director with the UIKit and SwiftUI team at Apple, joins John to go on a deep dive into SwiftUI. What inspired the creation and design of SwiftUI, how does it impact the way apps are developed and architected, how is Apple using and improving SwiftUI internally, and much more.
Adam Bell joins John to talk about audio programming in Swift, and how SwiftUI makes rendering visual representations of audio and other custom shapes easier than ever before. Also, reverse engineering, mixing SwiftUI with UIKit and other view frameworks, and much more.
A recap of the basics of SwiftUI, Apple’s declarative new UI framework for building apps across all of their platforms. How to build custom views and modify existing ones, how to manage local state within a view, and how to compose multiple views to form new ones.
Longtime Apple platforms developer Brent Simmons joins John to discuss how SwiftUI is ushering in a new era for Apple’s developer tools, and how we as third party developers can prepare for it. Also, Mac development, lots of tips for writing efficient code, and dynamic programming in Swift.
Deploying generics in a more gentle fashion — to make a code base simpler, not more complicated.
Kaya Thomas joins John to talk about Apple’s various accessibility technologies and how SwiftUI is taking things to a whole new level. Also, how UI testing and accessibility are closely related, and what makes declarative UI development so powerful.
This week, let’s take a look at a few techniques that we can use to prepare ourselves for undergoing major paradigm shifts when it comes to the APIs and technologies that we use to build apps — using the shift from imperative UI development with UIKit to the declarative nature of SwiftUI as an example.
SwiftUI brings a new, declarative way to build UIs for Apple’s platforms, and also pushes the Swift language itself to new limits — by making heavy use of a set of key new syntax features, that are being introduced as part of Swift 5.1, in order to provide a very DSL-like API. This week, let’s take a first look at those features and how they work.
It’s time for the 2019 Swift by Sundell WWDC special, featuring PCalc creator James Thomson — who, with his over 25 years of experience developing apps for Apple’s platforms, joins John to discuss SwiftUI, Catalyst, and the other exciting tools and frameworks introduced at this year’s WWDC.