John Sundell

In-depth conversations about Swift and software development in general, hosted by John Sundell.

Popular episodes

101: “Cross-platform SwiftUI”, with special guest Malin Sundberg

Jul 15 • 59:42

Malin Sundberg joins John to talk about her experiences of using SwiftUI to build and ship the time-tracking and invoicing app Orbit on most of Apple’s platforms, and what sort of things that can be good to keep in mind when using SwiftUI in a cross-platform context....

100: “A tower of capabilities”, with special guest Chris Lattner

Jul 2 • 01:00:20

Chris Lattner returns to the show to discuss Swift’s new concurrency features, the ongoing evolution of the language, and the importance of both language and API design. This, and much more, on this special 100th episode of the show....

99: “Structured concurrency”, with special guest Doug Gregor

Jun 11 • 01:08:10

Doug Gregor from Apple joins John to discuss Swift 5.5’s new concurrency features in great detail. How do features like async/await and actors work under the hood, and how were those concepts adapted in order to feel right at home within Swift’s existing ecosystem? That, and much more, on this WWDC21 special episode of the show....

98: “An entire spectrum of apps”, with special guest Sean Allen

May 31 • 01:09:38

Sean Allen returns to the show to talk about using the MVVM design pattern within SwiftUI-based apps, building a course around MapKit and CloudKit, how to approach all of the new material that WWDC has to offer, and what goes into making a really great developer portfolio....

97: “Anything can happen during WWDC”, with special guest Ish ShaBazz

May 21 • 01:03:27

Ish ShaBazz returns to the show for a special pre-WWDC episode about what new APIs and developer tools that Apple might announce at this year’s edition of the conference. What’s in store for Swift and SwiftPM, how might UIKit and SwiftUI continue to evolve, and will this be the year when we’ll finally see Apple’s new AR/VR platform?...

96: “Gesture-driven animations”, with special guest Adam Bell

Apr 29 • 01:12:57

Adam Bell returns to the show to talk about animations, both how to make great use of the built-in animation tools that the iOS SDK ships with, but also how to drive custom, gesture-driven animation logic and the sort of performance optimizations that are typically required when writing that sort of code....

95: “Concurrency orchestration”, with special guest Brent Simmons

Apr 15 • 57:25

Brent Simmons returns to the show to discuss multi-threading and concurrency, and how to make good use of tools like Grand Central Dispatch. Also, building NetNewsWire in the open, the current state of SwiftUI, and the type of responsibilities that senior developers typically have....

94: “A Mac-like Mac app”, with special guest Benedikt Terhechte

Mar 30 • 01:11:17

Benedikt Terhechte returns to the show to discuss the pros and cons of using technologies like Catalyst and SwiftUI to build Mac apps, and also to share tips and tricks on how to use AppKit for use cases that Apple’s more modern frameworks do not yet support....

93: “Combine and Core Data”, with special guest Donny Wals

Mar 14 • 01:09:49

Donny Wals, book author and iOS developer at Disney Streaming Services, joins John to give practical tips on Combine and Core Data. How to manage and test increasingly complex Combine pipelines, and how come the opinions on Core Data are so divisive? Also, working on internal SDKs and frameworks, and taking a pragmatic approach to unit testing....

92: “All of our wildest Swift dreams”, with special guest Kaitlin Mahar

Feb 27 • 45:42

Kaitlin Mahar, lead engineer at MongoDB and member of the Swift Server Work Group, joins John to discuss the current state of server-side Swift, designing APIs for server-side libraries, and Swift’s upcoming suite of structured concurrency features....

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