Weekly Swift articles, podcasts and tips by John Sundell.
Swift by Sundell is updated every single week, all year round. This page contains the latest updates.
Subscribe via RSS to get notified when new content gets published.
Jordan Singer joins John to discuss various approaches of turning designs into fully implemented UIs, how to manage things like mock data during the development process, and when to turn a given view into a reusable component. Also, the story behind the Airport app and Jordan’s recent SwiftUI experiments.
A few different techniques that can help us share common networking logic, while also utilizing Swift’s advanced type system to make that kind of code more robust.
A new addition to UIKit in iOS 14.
A roundup of some of the key ways in which Swift 5.3 enhances the overall experience of building views using SwiftUI.
Carola Nitz, iOS developer at Netflix, joins John to discuss how larger iOS development teams typically operate, and how smaller teams can prepare their code bases for future growth. Also, organizing remote conferences, balancing feature development with bug fixing, and much more.
An overview of the key new UICollectionView APIs introduced in iOS 13 and 14, such as compositional layouts, diffable data sources, and cell registrations.
A tip for more dynamic navigation.
A look at various ways to use the many file system-related APIs that Swift offers — both on Apple’s own platforms, and on platforms like Linux — and a few things that can be good to keep in mind when working with those APIs.
Nick Lockwood returns to the show to go on a deep dive into data structures and algorithms, what some of the pros and cons of writing high-performance code in Swift are, and how all of that relates to parallelization and performance.
With or without storyboards.
This week, let’s take a look at a few examples of building custom debugging utilities for SwiftUI-based views — from specific methods to general-purpose abstractions.
An overview of the tools and directives that enable us to influence how our Swift code gets compiled, and what sort of situations that each of those tools might be particularly useful in.
Ben Scheirman, creator of NSScreencast, joins John on an episode all about UICollectionView. How have UICollectionView’s features evolved over time, and how are modern APIs like compositional layouts and diffable data sources changing the way collection views are built and used?
And how that can be customized.
This week’s article is about Swift’s function builders feature, and how it can give us some really valuable insights into how SwiftUI’s DSL operates under the hood.
A few features that make Swift’s multiline string literals really useful.
Tips on how to texture SwiftUI views using tiling images, and how to ensure that such views are rendered in a smooth and predictable manner.
Really useful for utility methods.
JP Simard returns to the show to discuss Swift 5.3’s main new features and improvements, and what those changes might tell us about the current state of Swift and its evolution process.
This week, let’s take a look at what goes into building a custom Combine publisher, and what sort of situations that might require us to do that.
Useful for both apps and widgets.
A look at a few somewhat lesser-known ways in which enums can be used to solve various problems in Swift-based apps and libraries.
Specializing container views.