Swift by Sundell

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John Sundell & guests answer questions about Swift development from the community.

John Sundell


    • Dec 19, 2022 LATEST EPISODE
    • monthly NEW EPISODES
    • 1h 4m AVG DURATION
    • 123 EPISODES

    4.9 from 173 ratings Listeners of Swift by Sundell that love the show mention: swift, ios, software, john, development, blog, wish, topics, best, keep up the great, guests, awesome, show, work, listening.



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    Latest episodes from Swift by Sundell

    123: “The evolution of Swift”, with special guest Nick Lockwood

    Play Episode Listen Later Dec 19, 2022 63:27


    On this final episode of 2022, Nick Lockwood returns to the show to discuss the overall evolution of Swift and its ecosystem of tools and libraries. How has Swift changed since its original introduction in 2014, how does it compare to other modern programming languages, and how might the language continue to evolve in 2023 and beyond?

    122: “Swift concurrency in practice”, with special guest Ben Scheirman

    Play Episode Listen Later Nov 18, 2022 64:22


    Ben Scheirman returns to the show to discuss how Swift's built-in concurrency features, such as async/await and tasks, can be used in practice when building apps for Apple's platforms.

    121: “Responsive and smooth UIs”, with special guest Adam Bell

    Play Episode Listen Later Oct 31, 2022 70:13


    Adam Bell returns to the podcast to discuss different techniques and approaches for optimizing UI code, and how to utilize tools like animations in order to build iOS apps that feel fast and responsive.

    120: “Freelancing and WWDC22 highlights”, with special guest Donny Wals

    Play Episode Listen Later Sep 17, 2022 54:06


    Donny Wals returns to the show to talk about being an iOS developer freelancer, and to discuss some of the key new APIs, Swift language features, and frameworks that were introduced at WWDC22.

    119: “The role of system design”, with special guest Gui Rambo

    Play Episode Listen Later Aug 31, 2022 75:38


    Gui Rambo returns to the show to talk about the role and importance of system design when building apps and open source tools, and how common app architectures and design patterns can be augmented with custom systems.

    118: “What's new in SwiftUI in iOS 16?”, with special guest Natalia Panferova

    Play Episode Listen Later Jul 11, 2022 67:36


    Natalia Panferova joins John to discuss some of the key new features that are coming to SwiftUI and UIKit in iOS 16, and to talk about her experience working on SwiftUI at Apple.

    117: “Swift 5.7, generics, and the road to Swift 6”, with special guest Ben Cohen

    Play Episode Listen Later Jun 10, 2022 67:57


    Ben Cohen, manager of the Swift team at Apple, joins John on this WWDC22 special to discuss Swift 5.7, how generics have been made more powerful and easy to use, and how the language is expected to evolve towards Swift 6.

    116: “The evolution of SwiftUI”, with special guest Chris Eidhof

    Play Episode Listen Later May 18, 2022 65:29


    Chris Eidhof returns to the podcast to talk about how SwiftUI has evolved since its initial release, to share several key learnings from using it over the past few years, and to discuss concepts like app architecture and state management.

    115: “A framework and an app”, with special guest Simon Støvring

    Play Episode Listen Later Apr 30, 2022 67:54


    Simon Støvring returns to the show to talk about how he built his new text editor Runestone, how to effectively manage an app's settings, performance tuning, and implementing an app's core logic as a stand-alone framework.

    114: “Accessibility on Apple's platforms”, with special guest Sommer Panage

    Play Episode Listen Later Mar 21, 2022 72:08


    Sommer Panage returns to the show to discuss Apple's various accessibility APIs and tools, how to incorporate accessibility support into a team's overall development workflow, and what it was like being an engineering manager at Apple.

    113: “Where is Swift headed in 2022?”, with special guest JP Simard

    Play Episode Listen Later Feb 27, 2022 68:59


    On this 2022 season premiere, JP Simard returns to the show to discuss what's next for Swift in 2022, and what kinds of improvements and new features that might be coming to the language during the year.

    112: “The 2021 Season Finale”

    Play Episode Listen Later Dec 30, 2021 52:13


    To wrap up the 2021 season of the show, John revisits some of the key themes and topics that were discussed both on the show itself, and within the Swift community in general, throughout the year.

    111: “Custom rendering”, with special guest James Thomson

    Play Episode Listen Later Dec 20, 2021 54:56


    James Thomson returns to the show to discuss the various technologies that enable us to render custom UIs on Apple's platforms. From rendering views using Core Graphics and Core Animation, to building completely custom 3D-based UIs using SceneKit and RealityKit.

    110: “Concurrency beyond app development”, with special guest Tim Condon

    Play Episode Listen Later Dec 6, 2021 61:19


    Tim Condon joins John to discuss how both client and server-side Swift developers could utilize the new built-in concurrency system, as well as how distributed actors and other upcoming language features might continue to make Swift even more capable on the server.

    109: “Code maintenance”, with special guest Nick Lockwood

    Play Episode Listen Later Nov 22, 2021 69:57


    Nick Lockwood joins John for a discussion about maintaining Swift code bases — from open source projects, to ones worked on by teams of various sizes. Also, the design of ShapeScript, using async/await within unit tests, and much more.

    108: “Concurrency and Swift-DocC”, with special guest Marin Todorov

    Play Episode Listen Later Nov 4, 2021 73:18


    Marin Todorov returns to the podcast to discuss Swift's new concurrency system and its newly announced backward compatibility, his new book about that topic, and his work on Apple's open source documentation tool, Swift-DocC.

    107: “UIKit in 2021”, with special guest Ben Scheirman

    Play Episode Listen Later Oct 30, 2021 69:24


    Ben Scheirman returns to the show to talk about modern UIKit-based app development, how UIKit has evolved over the past few years, and how its API design and usage has been influenced by the introduction of frameworks like SwiftUI and Combine.

    106: “Opportunities for optimization”, with special guest Christian Selig

    Play Episode Listen Later Oct 7, 2021 69:19


    Christian Selig returns to the show to talk about how he used the new Safari extension system on iOS to build Amplosion and Achoo, the pros and cons of open source, and how developers can utilize other iOS 15 and iPhone hardware features.

    105: “Building various kinds of editors”, with special guest Marcin Krzyzanowski

    Play Episode Listen Later Sep 28, 2021 54:09


    Marcin Krzyzanowski returns to the show to talk about building editors for Swift code, backend-driven user interfaces, and more. Also, the challenges of working with text-based data, the pros and cons of composition, and managing hobby projects.

    104: “The magic of Augmented Reality”, with special guest Roxana Jula

    Play Episode Listen Later Sep 2, 2021 64:10


    Roxana Jula joins John to discuss Apple's various tools, frameworks, and APIs for building Augmented Reality experiences. How to get started building AR-based apps, what's the current state of AR on Apple's platforms, and how might that change if Apple were to introduce dedicated AR hardware in the future?

    103: “What's new in Swift 5.5”, with special guest Antoine van der Lee

    Play Episode Listen Later Aug 23, 2021 71:48


    Antoine van der Lee, creator of SwiftLee, joins John to discuss the new language features that are being introduced as part of Swift 5.5 — from the brand new concurrency system, to convenience features and various improvements.

    102: “WWDC21, two months later”, with special guest Jordan Morgan

    Play Episode Listen Later Aug 2, 2021 65:41


    Jordan Morgan returns to the show to discuss some of the key new APIs and frameworks that were announced at WWDC21, and how they can be integrated into the apps that we build, now that about two months have passed since the conference took place.

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

    Play Episode Listen Later Jul 15, 2021 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

    Play Episode Listen Later Jul 2, 2021 60:20


    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

    Play Episode Listen Later Jun 11, 2021 68:10


    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

    Play Episode Listen Later May 31, 2021 69:38


    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

    Play Episode Listen Later May 21, 2021 63:27


    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

    Play Episode Listen Later Apr 29, 2021 72:57


    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

    Play Episode Listen Later Apr 15, 2021 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

    Play Episode Listen Later Mar 30, 2021 71:17


    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

    Play Episode Listen Later Mar 14, 2021 69:49


    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

    Play Episode Listen Later Feb 27, 2021 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.

    91: “Is SwiftUI ready for production?”, with special guest David Smith

    Play Episode Listen Later Feb 15, 2021 69:15


    David Smith, creator of apps like Widgetsmith, returns to the show to discuss whether SwiftUI is currently capable and stable enough to build production-level apps, and what sort of things that can be good to keep in mind when starting to deploy SwiftUI in production.

    90: “The essence of app architecture”, with special guest Matt Gallagher

    Play Episode Listen Later Jan 28, 2021 72:45


    Matt Gallagher, creator of Cocoa with Love, returns to the show to discuss how the introduction of SwiftUI and Combine has impacted how apps are architected on Apple’s platforms, and what sort of principles that are good to keep in mind when designing a solid app architecture.

    89: “Framework and SDK development”, with special guest Ellen Shapiro

    Play Episode Listen Later Jan 18, 2021 55:19


    Ellen Shapiro returns to the show to discuss framework and SDK development, and how that often requires a somewhat different process from app development. Also, API design, GraphQL, using the standard library’s protocol-oriented design, and more.

    88: “The 2020 Holiday Special”

    Play Episode Listen Later Dec 21, 2020 64:45


    On this special episode of the show, John wraps up the 2020 season by revisiting some of the key themes and topics that were discussed on the show during the year.

    87: “The SwiftUI layout system”, with special guest Chris Eidhof

    Play Episode Listen Later Dec 3, 2020 59:07


    Chris Eidhof returns to the show to go on a deep dive into the SwiftUI layout system. What are the different phases involved in determining a given view’s layout, how do concepts like layout priorities and flexibility work, and what makes SwiftUI different from UIKit and AppKit in terms of layout?

    86: “Map is a design pattern”, with special guest Daniel Steinberg

    Play Episode Listen Later Nov 19, 2020 58:37


    Daniel Steinberg joins John to discuss how various functional programming patterns can be adopted in Swift, and how many of those patterns can be found in both the standard library and in frameworks like Combine and SwiftUI.

    85: “Cross-Apple platform development”, with special guest James Thomson

    Play Episode Listen Later Nov 5, 2020 67:00


    James Thomson, creator of PCalc, returns to the show to discuss how developers can bring their apps to multiple Apple platforms using technologies like Catalyst and SwiftUI, and how and when it can be a good idea to share code across platforms.

    84: “Key paths, functions and closures”, with special guest Vincent Pradeilles

    Play Episode Listen Later Oct 22, 2020 65:05


    Vincent Pradeilles joins John to discuss various ways to use Swift language features like key paths and closures, how they relate to patterns typically used within functional programming, and when and how to adopt such patterns.

    83: “Adventure into widgets”, with Scriptable developer Simon Støvring

    Play Episode Listen Later Oct 8, 2020 54:13


    Simon Støvring, the developer behind several powerful iOS productivity apps, including Scriptable, joins John on an episode all about the new home screen widgets introduced in iOS 14. Topics include how to create and update dynamic widgets, managing and sharing data between an app and its widgets, and much more.

    82: “Translating designs into code”, with special guest Jordan Singer

    Play Episode Listen Later Sep 24, 2020 52:00


    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.

    81: “How big iOS teams typically operate”, with special guest Carola Nitz

    Play Episode Listen Later Sep 10, 2020 51:11


    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.

    80: “Lists and loops”, with special guest Nick Lockwood

    Play Episode Listen Later Aug 28, 2020 63:11


    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.

    79: “All about UICollectionView”, with special guest Ben Scheirman

    Play Episode Listen Later Aug 13, 2020 59:36


    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?

    78: “What’s new in Swift 5.3”, with special guest JP Simard

    Play Episode Listen Later Jul 28, 2020 48:07


    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.

    77: “Adopting new system features”, with special guest Jordan Morgan

    Play Episode Listen Later Jul 16, 2020 54:42


    Jordan Morgan joins John to discuss various strategies for adopting new system features and APIs, how to keep up with the rapid changes to iOS, macOS and Apple’s other platforms, and how to allocate time between different projects.

    76: “A huge year for SwiftUI”, a WWDC20 special with Josh Shaffer and Eliza Block

    Play Episode Listen Later Jun 30, 2020 74:35


    Josh Shaffer and Eliza Block from Apple join John to talk about what’s new in SwiftUI, how Xcode Previews work under the hood, the new home screen widget system, Apple’s internal process of adopting and improving SwiftUI, and much more.

    75: “The Swift package ecosystem”, with special guests Dave Verwer and Sven A. Schmidt

    Play Episode Listen Later Jun 19, 2020 67:33


    Dave Verwer and Sven A. Schmidt join John to talk about their newly launched Swift Package Index, and what the overall state of Swift’s package ecosystem currently is. Also, dependency management, composing libraries, deploying sever-side Swift in production, and much more.

    74: “Let’s build a camera app”, a conversation with the Halide and Spectre team

    Play Episode Listen Later Jun 4, 2020 58:29


    On this special episode, John is joined by the entire team behind the award-winning apps Halide and Spectre, Apple’s 2019 App of the Year. Ben, Sebastiaan and Rebecca share their stories of how these apps came to life, how they’re working together between design and development, and how technologies like Computational Photography and Augmented Reality are influencing their work.

    73: “Truly a general-purpose language”, with special guest Kilo Loco

    Play Episode Listen Later May 19, 2020 67:50


    Kyle Lee, also known as Kilo Loco, joins John to go behind the scenes of Publish — the static site generator used to build Swift by Sundell. Also, how to make a code base accessible to new team members, learning from open source, getting started with Swift-based web development, and much more.

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