Talk Python to Me is a weekly podcast hosted by developer and entrepreneur Michael Kennedy. We dive deep into the popular packages and software developers, data scientists, and incredible hobbyists doing amazing things with Python. If you're new to Python, you'll quickly learn the ins and outs of the community by hearing from the leaders. And if you've been Pythoning for years, you'll learn about your favorite packages and the hot new ones coming out of open source.
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In-depth conversations about Swift and software development in general, hosted by John Sundell.
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Swift by Sundell
1 123: “The evolution of Swift”, with special guest Nick Lockwood 1:03:27
1:03:27 Play Later Play Later Lists Like Liked1:03:27
Play Later Play Later Lists Like LikedOn 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? Sponsors Bitrise : Rock-solid continuous integration for your Swift projects. Go to bitrise.io/swift to get started for free. NordVPN : Get an exclusive discount on NordVPN’s excellent VPN service, by going to nordvpn.com/sundell . They even have a 30-day money-back guarantee. Links Nick on Mastodon John on Mastodon ShapeScript Kotlin Rust NSProxy Lisp Macros in C and C++ Reflection in Swift PHP The Result type Classes vs structs Swift’s API design guidelines Swift Concurrency Swift Async Algorithms The Future of Foundation Swift Collections Swift Evolution proposal for function back deployment Building editable lists with SwiftUI The Swift features that power SwiftUI’s API Publish (static site generation in Swift) swift-sh by Max Howell Swift Evolution proposal for adding macros to the language Accessing a property wrapper’s enclosing instance Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 122: “Swift concurrency in practice”, with special guest Ben Scheirman 1:04:22
1:04:22 Play Later Play Later Lists Like Liked1:04:22
Play Later Play Later Lists Like LikedBen 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. Sponsors Essential Developer : Join the iOS Architect Crash Course to accelerate your journey towards becoming a senior developer. It’s 100% free and held entirely online. NordVPN : Get an exclusive discount on NordVPN’s excellent VPN service, by going to nordvpn.com/sundell . They even have a 30-day money-back guarantee. Links Ben on Twitter John on Twitter NSScreencast Combine Swift The Nike SNKRS app Discover concurrency Episode with Doug Gregor about Swift concurrency The delegate pattern PromiseKit RxSwift Discover Combine Implementing debouncing using Combine Grand Central Dispatch (GCD) Async sequences and streams Retrofitting existing APIs with async/await support Async properties The Just publisher The MainActor attribute Point-Free’s Combine schedulers Previous episode with Ben about UICollectionView Connecting and merging Combine publishers Tonal Therapy Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 121: “Responsive and smooth UIs”, with special guest Adam Bell 1:10:13
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Play Later Play Later Lists Like LikedAdam 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. Sponsors NordVPN : Get an exclusive discount on NordVPN’s excellent VPN service, by going to nordvpn.com/sundell . They even have a 30-day money-back guarantee. Bitrise : Rock-solid continuous integration for your Swift projects. Go to bitrise.io/swift to get started for free. Links Adam on Twitter John on Twitter Motion CloudKit Debouncing CATransaction Grand Central Dispatch UITraitCollection SIMD CAAnimation Modifying a view’s transform Snapshotting a UIView CALayer View controller transitions Extracting the animation curve used for keyboard presentation Adding spring parameters to a UIView animation beginFromCurrentState animation option Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 120: “Freelancing and WWDC22 highlights”, with special guest Donny Wals 54:06
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Play Later Play Later Lists Like LikedDonny 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. Sponsors Essential Developer : Join the iOS Architect Crash Course to accelerate your journey towards becoming a senior developer. It’s 100% free and held entirely online. Bitrise : Rock-solid continuous integration for your Swift projects. Go to bitrise.io/swift to get started for free. Links Donny on Twitter John on Twitter “What’s new in SwiftUI in iOS 16?”, with Natalia Panferova SwiftUI’s new NavigationStack API Building “desktop-class” iPad apps Swift Charts The SwiftUI Layout protocol UIHostingConfiguration NSUserActivity WidgetKit Live Activities AsyncCompatibilityKit Swift 5.7’s new optional unwrapping syntax Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 119: “The role of system design”, with special guest Gui Rambo 1:15:38
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Play Later Play Later Lists Like LikedGui 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. Sponsors NordVPN : Get an exclusive discount on NordVPN’s excellent VPN service, by going to nordvpn.com/sundell . They even have a 30-day money-back guarantee. Bitrise : Rock-solid continuous integration for your Swift projects. Go to bitrise.io/swift to get started for free. Links Rambo on Twitter John on Twitter Stacktrace AirBuddy ChibiStudio MVVM MVC The factory pattern The observer pattern Combine Swift Concurrency Async streams Diagrams MindNode VirtualBuddy DocC Sparkle Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 118: “What’s new in SwiftUI in iOS 16?”, with special guest Natalia Panferova 1:07:36
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Play Later Play Later Lists Like LikedNatalia 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. Sponsors NordVPN : Get an exclusive discount on NordVPN’s excellent VPN service, by going to nordvpn.com/sundell . They even have a 30-day money-back guarantee. Essential Developer : Join the iOS Architect Crash Course to accelerate your journey towards becoming a senior developer. The next edition starts on July 18th, and it’s 100% free and held entirely online. Links Natalia on Twitter John on Twitter Natalia’s website: nilcoalescing.com The Layout protocol GeometryReader AttributedString Natalia’s article about the new SwiftUI navigation APIs NavigationStack NavigationSplitView NavigationViewStyle Programmatic navigation in SwiftUI (before iOS 16) How to sync the width or height of two SwiftUI views? AnyLayout ViewThatFits Natalia’s article about the new SwiftUI sheet APIs Swift Charts Rendering SwiftUI views within UITableView or UICollectionView cells on iOS 16 Building modern collection views SwiftUI/UIKit interoperability Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 117: “Swift 5.7, generics, and the road to Swift 6”, with special guest Ben Cohen 1:07:57
1:07:57 Play Later Play Later Lists Like Liked1:07:57
Play Later Play Later Lists Like LikedBen 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. Sponsors Bitrise : Rock-solid continuous integration for your Swift projects. Go to bitrise.io/swift to get started for free. NordVPN : Get an exclusive discount on NordVPN’s excellent VPN service, by going to nordvpn.com/sundell . They even have a 30-day money-back guarantee. Links Ben on Twitter John on Twitter Swift Async Algorithms Swift Collections Using the new ‘some’ and ‘any’ keywords Type erasure “What’s New in Swift”, from WWDC22 “Embracing Swift Generics”, from WWDC22 WeatherKit Regex Literals RegexBuilder Result builders App Intents Sourcery Doug Gregor’s “Eliminate data races using Swift Concurrency” talk Ben’s Swift concurrency talk from WWDC21 Grand Central Dispatch Swift Distributed Actors Connecting async/await to other Swift code The Swift Mentorship Program Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 116: “The evolution of SwiftUI”, with special guest Chris Eidhof 1:05:29
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Play Later Play Later Lists Like LikedChris 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. Sponsors Judo : Quickly build native, server-driven UI for iOS and Android, and publish instantly, without having to submit updates to the App Store. Try it for free today, by going to judo.app/sundell . RevenueCat : In-app subscriptions made easy. RevenueCat handles the pain points of implementing in-app purchases and subscriptions, so that you can get back to building your app. Learn more at revenuecat.com . Links Chris on Twitter John on Twitter objc.io Swift Talk The “App Architecture” book Thinking in SwiftUI SwiftUI’s frame modifier How an HStack works under the hood SwiftUI transactions SwiftUI’s state management system Programmatic navigation in SwiftUI SwiftUI animations and transitions Narrated Point-Free’s “Composable architecture” Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 115: “A framework and an app”, with special guest Simon Støvring 1:07:54
1:07:54 Play Later Play Later Lists Like Liked1:07:54
Play Later Play Later Lists Like LikedSimon 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. Sponsors Judo : Quickly build native, server-driven UI for iOS and Android, and publish instantly, without having to submit updates to the App Store. Try it for free today, by going to judo.app/sundell . Bitrise : Rock-solid continuous integration for your Swift project, which now offers 50% faster builds and ad-ons for things like automatic deployment. Go to bitrise.io/swift to get started for free. Links Simon on Twitter John on Twitter Runestone Scriptable Data Jar Jayson Visual Studio Code Working Copy UserDefaults Property wrappers SwiftUI’s state management system UITextView SwiftUI’s TextEditor TextKit CoreText UITextInput JavascriptCore Publish Managing dependencies using Swift Package Manager Simon’s website Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 114: “Accessibility on Apple’s platforms”, with special guest Sommer Panage 1:12:08
1:12:08 Play Later Play Later Lists Like Liked1:12:08
Play Later Play Later Lists Like LikedSommer 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. Sponsors Emerge Tools : Optimize your app’s startup time, binary size, and overall performance using Emerge’s advanced app optimization and monitoring tools. Get started at emergetools.com . Bitrise : Rock-solid continuous integration for your Swift project, which now offers 50% faster builds and ad-ons for things like automatic deployment. Go to bitrise.io/swift to get started for free. Links VoiceOver Voice Control Dynamic Type PSPDFKit’s blog post about Dynamic Type Defining accessibility labels Accessibility traits WWDC session about custom accessibility actions WWDC session about using AXCustomContent isReduceMotionEnabled prefersCrossFadeTransitions shouldDifferentiateWithoutColor SwiftUI’s accessibilityElement modifier Audio graphs Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 113: “Where is Swift headed in 2022?”, with special guest JP Simard 1:08:59
1:08:59 Play Later Play Later Lists Like Liked1:08:59
Play Later Play Later Lists Like LikedOn 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. Sponsors Judo : Quickly build native, server-driven UI for iOS and Android, and publish instantly, without having to submit updates to the App Store. Try it for free today, by going to judo.app/sundell . Bitrise : Rock-solid continuous integration for your Swift project, which now offers 50% faster builds and ad-ons for things like automatic deployment. Go to bitrise.io/swift to get started for free. Links JP on Twitter John on Twitter ZenTuner on the App Store The source code for ZenTuner on GitHub Property wrappers Result builders Generics Opaque return types Advent of Code Codable Swift Numerics Swift Argument Parser Swift Concurrency The MainActor attribute Sendable Combine Ted Kremenek’s “On the road to Swift 6” post OpenCombine The open source version of Foundation Rust Swift System Distributed actors Opaque parameter declarations Swift’s new date/time API Swift Markdown Why can’t certain protocols be referenced directly? Type placeholders Adding SwiftUI’s ViewBuilder attribute to functions JP on GitHub JP’s website Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
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. Sponsors Bitrise : Rock-solid continuous integration for your Swift project, which now offers 50% faster builds and ad-ons for things like automatic deployment. Go to bitrise.io/swift to get started for free. RevenueCat : In-app subscriptions made easy. RevenueCat handles the pain points of implementing subscriptions and in-app purchases, so that you can get back to building your app. Learn more at revenuecat.com . Episodes that the featured clips are from “What’s new in Swift 5.5”, with Antoine van der Lee “Structured concurrency”, with Doug Gregor “A tower of capabilities”, with Chris Lattner “Concurrency beyond app development”, with Tim Condon “All of our wildest Swift dreams”, with Kaitlin Mahar “Is SwiftUI ready for production?”, with David Smith “Cross-platform SwiftUI”, with Malin Sundberg Links Automatic conversions between Double and CGFloat values Conditional compilation within Swift expressions Codable synthesis for Swift enums Using dot syntax with static protocol APIs Actors Async sequences Using Swift’s concurrency system to run multiple tasks in parallel The Task.checkCancellation API Chris Lattner’s original concurrency manifesto Pull Request that adds concurrency to Publish Swift Server Work Group Task local values SwiftUI and UIKit interoperability Connecting async/await to other Swift code Discover SwiftUI Discover Concurrency Swift by Sundell on Twitter Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 111: “Custom rendering”, with special guest James Thomson 54:56
54:56 Play Later Play Later Lists Like Liked54:56
Play Later Play Later Lists Like LikedJames 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. Sponsors MacStadium : The leading provider of cloud solutions built on real Mac hardware. Get started at macstadium.com/sundell . Shortcut : A lightweight, yet powerful project management tool built specifically for software development teams. Try Shortcut for free for two months by going to shortcut.com/sundell . Links PCalc Dice by PCalc The previous episode with James SceneKit Applying rounded corners to a UIKit or SwiftUI view Creating a custom SwiftUI ButtonStyle PostScript Core Graphics Core Animation Metal DragThing Core Image Using Core Animation’s replicator layers CATransaction Using SpriteKit for custom animations Unreal Engine Unity RealityKit Ray tracing Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 110: “Concurrency beyond app development”, with special guest Tim Condon 1:01:19
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Play Later Play Later Lists Like LikedTim 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. Sponsors MacStadium : The leading provider of cloud solutions built on real Mac hardware. Get started at macstadium.com/sundell . Instabug : Incredibly useful bug, crash, and performance monitoring for iOS apps. Go to instabug.com/sundell to start your free trial. Links Tim on Twitter John on Twitter Vapor Swift concurrency Property wrappers Result builders Swift Server Work Group SwiftNIO Futures and Promises Combine Async sequences Actors Retrofitting existing APIs with async/await support Using Swift’s concurrency system to run multiple tasks in parallel Distributed actors Task local values Swift System Episode with Kaitlin Mahar Fluent MultipartKit Tim’s website Vapor’s async/await migration guide The Vapor Discord server Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 109: “Code maintenance”, with special guest Nick Lockwood 1:09:57
1:09:57 Play Later Play Later Lists Like Liked1:09:57
Play Later Play Later Lists Like LikedNick 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. Sponsors RevenueCat : In-app subscriptions made easy. RevenueCat handles the pain points of implementing subscriptions and in-app purchases, so that you can get back to building your app. Learn more at revenuecat.com . MacStadium : The leading provider of cloud solutions built on real Mac hardware. Get started at macstadium.com/sundell . Links Nick on Twitter John on Twitter ShapeScript on the App Store The source code for ShapeScript on GitHub fastlane ShapeScript’s iteration syntax VRML Layout AppleScript Lisp SwiftFormat SwiftLint Recent episode with Christian Selig about open source Euclid OpenSCAD Publish Semantic Versioning Compiler directives in Swift Danger Unit testing The Swift Package Manager Using async/await when writing unit tests Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 108: “Concurrency and Swift-DocC”, with special guest Marin Todorov 1:13:18
1:13:18 Play Later Play Later Lists Like Liked1:13:18
Play Later Play Later Lists Like LikedMarin 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. Sponsors Quickly checking out either of the following two sponsors is a great way to help support this podcast, if you wish to do so. Instabug : Incredibly useful bug, crash, and performance monitoring for iOS apps. Go to instabug.com/sundell to start your free trial. Bitrise : Rock-solid continuous integration for your Swift project, which now offers 50% faster builds and ad-ons for things like automatic deployment. Go to bitrise.io/swift to get started for free. Links Marin on Twitter John on Twitter Marin’s new book about Swift concurrency Swift-DocC Marin’s blog with articles about Swift concurrency Swift’s concurrency system’s new backward compatibility Making SwiftUI views refreshable using async/await Using the MainActor attribute The Actor protocol Marin’s “Actor vs queue vs lock” article Making async system APIs backward compatible Publish The Swift-DocC contribution guide Marin’s podcast conversation with Tim Mitra Marin’s website: underplot.com Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 107: “UIKit in 2021”, with special guest Ben Scheirman 1:09:24
1:09:24 Play Later Play Later Lists Like Liked1:09:24
Play Later Play Later Lists Like LikedBen 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. Sponsors RevenueCat : In-app subscriptions made easy. RevenueCat handles the pain points of implementing subscriptions and in-app purchases, so that you can get back to building your app. Learn more at revenuecat.com . MacStadium : The leading provider of cloud solutions built on real Mac hardware. Get started at macstadium.com/sundell . Links Ben on Twitter John on Twitter NSScreencast The Combine Swift course Tonal Therapy The previous episode with Ben about UICollectionView “What’s new in UIKit”, from WWDC21 Using compiler directives in Swift Discover Combine PromiseKit Ben’s NSSpain talk about PromiseKit and Combine Map, FlatMap and CompactMap Episode with Daniel Steinberg Using Combine’s subjects Async sequences The coordinator pattern View models Previewing UIKit-based code Published properties The delegate pattern Logic controllers Grand Central Dispatch Handling view loading states KVO (Key-Value Observing) NotificationCenter UIColorPickerViewController UIMenu SwiftUI and UIKit interoperability UIAppearance Peter Steinberger on Twitter Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 106: “Opportunities for optimization”, with special guest Christian Selig 1:09:19
1:09:19 Play Later Play Later Lists Like Liked1:09:19
Play Later Play Later Lists Like LikedChristian 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. Sponsors Quickly checking out either of the following two sponsors is a great way to help support this podcast, if you wish to do so. Bitrise : Rock-solid continuous integration for your Swift project, which now offers 50% faster builds and ad-ons for things like automatic deployment. Go to bitrise.io/swift to get started for free. Instabug : Incredibly useful bug, crash, and performance monitoring for iOS apps. Go to instabug.com/sundell to start your free trial. Links Christian on Twitter John on Twitter The previous episode with Christian Apollo Amplosion Achoo The new UIKit button system Modern UICollectionView APIs AMP Cloudflare Safari Web Extensions on iOS Sharing UserDefaults values within an app group The new ExtraLarge widget size on iPadOS SharePlay Quick Note Optimizing an app for ProMotion CADisplayLink Publish Splash Christian’s website Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 105: “Building various kinds of editors”, with special guest Marcin Krzyzanowski 54:09
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Play Later Play Later Lists Like LikedMarcin 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. Sponsors RevenueCat : In-app subscriptions made easy. RevenueCat handles the pain points of implementing subscriptions and in-app purchases, so that you can get back to building your app. Learn more at revenuecat.com . MacStadium : The leading provider of cloud solutions built on real Mac hardware. Get started at macstadium.com/sundell . Links Marcin on Twitter John on Twitter CryptoSwift Judo Swift Studio The previous episode with Marcin The Judo SDK on GitHub SwiftUI’s state management system NSTableView NSOutlineView Swift Package Manager as a library UITextView TextKit Core Text “Meet TextKit 2”, from WWDC21 Swift’s new AttributedString type CFAttributedString’s source code swift.best Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 104: “The magic of Augmented Reality”, with special guest Roxana Jula 1:04:10
1:04:10 Play Later Play Later Lists Like Liked1:04:10
Play Later Play Later Lists Like LikedRoxana 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? Sponsors Stream : Build scalable in-app chat or activity feeds in record time using Stream’s open source, Swift-native SDK that’s backed by enterprise-grade server infrastructure. Get started for free at getstream.io/sundell , or browse their open job positions at getstream.io/team . Instabug : Incredibly useful bug, crash, and performance monitoring for iOS apps. Go to instabug.com/sundell to start your free trial. Links Roxana on Twitter John on Twitter Roxana’s website ARKit RealityKit SceneKit SpriteKit Metal Reality Converter and Reality Composer The USDZ file format Blender Maya Child view controllers Ray Wenderlich’s “ARKit by Tutorials” book Max Frazer’s RealityKit shader tutorial Ryan Kopinsky’s “Reality School” YouTube channel Shaders Apple’s Human Interface Guidelines for AR ARCoachingOverlayView LiDAR ARDepthData IKEA Place T he “Create 3D models with Object Capture” WWDC session SwiftUI Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 103: “What’s new in Swift 5.5”, with special guest Antoine van der Lee 1:11:48
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Play Later Play Later Lists Like LikedAntoine 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. Sponsors Stream : Build scalable in-app chat or activity feeds in record time using Stream’s open source, Swift-native SDK that’s backed by enterprise-grade server infrastructure. Get started for free at getstream.io/sundell , or browse their open job positions at getstream.io/team . RevenueCat : In-app subscriptions made easy. RevenueCat handles the pain points of implementing subscriptions and in-app purchases, so that you can get back to building your app. Learn more at revenuecat.com . Links Antoine on Twitter John on Twitter WeTransfer SwiftLee RocketSim The 2019 holiday special with Antoine and Donny Wals Xcode source editor extensions Automatic conversions between Double and CGFloat values Effectful read-only properties Computed properties vs methods Sendable Using the if compiler directive within expressions Unwrapping optionals within SwiftUI views Codable synthesis for enums with associated values Attaching property wrappers to function arguments Antoine’s article about using property wrappers for dependency injection Using static protocol APIs to create conforming instances The original Swift concurrency manifesto Previous episode about Swift’s concurrency features, with Doug Gregor from Apple Async/await NSLock Actors Structured concurrency Async let Connecting async/await to other Swift code The Operation type Using Combine subjects Async sequences Async streams RxSwift Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 102: “WWDC21, two months later”, with special guest Jordan Morgan 1:05:41
1:05:41 Play Later Play Later Lists Like Liked1:05:41
Play Later Play Later Lists Like LikedJordan 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. Sponsors Bitrise : Rock-solid continuous integration for your Swift project, which now offers 50% faster builds and ad-ons for things like automatic deployment. Go to bitrise.io/swift to get started for free. Instabug : Incredibly useful bug, crash, and performance monitoring for iOS apps. Go to instabug.com/sundell to start your free trial. Links Jordan on Twitter John on Twitter The “A Best-in-Class iOS App” book series The “A Best-in-Class iOS App” article Spend Stack The previous episode with Jordan Swift by Sundell Discover DocC ShazamKit Taking UIKit’s new button configuration API for a spin Building modern collection views in Swift UISheetPresentationController Accessibility audio graphs SwiftUI’s accessibilityRepresentation API The new AttributedString type New SwiftUI list customization APIs Jordan’s “Spend Stack: Year One” article with an email reply from Craig Federighi SharePlay Previous episode all about Swift’s concurrency features Combine NotificationCenter AsyncStream Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 101: “Cross-platform SwiftUI”, with special guest Malin Sundberg 59:42
59:42 Play Later Play Later Lists Like Liked59:42
Play Later Play Later Lists Like LikedMalin 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. Sponsors Tower : Take advantage of Git’s powerful feature set with Tower, a beautifully designed Git client that makes it easy to perform everything from commits to rebases. Get a 50% discount using the offer code SUNDELL at git-tower.com . RevenueCat : In-app subscriptions made easy. RevenueCat handles the pain points of implementing subscriptions and in-app purchases, so that you can get back to building your app. Learn more at revenuecat.com . Links Malin on Twitter John on Twitter Orbit Malin’s NSSpain talk about SwiftUI SwiftUI and UIKit interoperability Orbit’s Trello board Using Xcode Previews Swift compiler directives The navigationSubtitle modifier SwiftUI’s new List APIs Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 100: “A tower of capabilities”, with special guest Chris Lattner 1:00:20
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Play Later Play Later Lists Like LikedChris 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. Sponsor Bitrise : Rock-solid continuous integration for your Swift project, which now offers 50% faster builds and ad-ons for things like automatic deployment. Go to bitrise.io/swift to get started for free. Links Chris on Twitter John on Twitter LLVM SiFive The previous episode with Chris RISC-V Matrix multiplication The bfloat16 floating-point format Value semantics Publish The original Swift concurrency manifesto Grand Central Dispatch Automatic Reference Counting (ARC) Async/await Actors Structured concurrency The MainActor attribute The Sendable protocol Haskell Erlang Swift’s built-in error handling system Variadic generics Optionals Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 99: “Structured concurrency”, with special guest Doug Gregor 1:08:10
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Play Later Play Later Lists Like LikedDoug 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. Sponsors DetailsPro : A native, fast, and beautiful design tool for iPhone, iPad and Mac, which lets you design, prototype and even build entire SwiftUI-powered UIs super easily. Try it for free at detailspro.app . RevenueCat : In-app subscriptions made easy. RevenueCat handles the pain points of implementing subscriptions and in-app purchases, so that you can get back to building your app. Learn more at revenuecat.com . Links Doug on Twitter John on Twitter Swift Evolution Async/await Futures and Promises Combine Task URLSession’s async/await-powered APIs Continuations Using SwiftUI’s refreshable modifier SwiftUI’s task modifier Calling async APIs from a synchronous context AsyncSequence Doug and Dario Rexin’s WWDC21 talk about actors Erlang Akka’s implementation of actors The Sendable protocol The MainActor type Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 98: “An entire spectrum of apps”, with special guest Sean Allen 1:09:38
1:09:38 Play Later Play Later Lists Like Liked1:09:38
Play Later Play Later Lists Like LikedSean 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. Sponsors NordVPN : Make your Internet connection private and secure, no matter which network that you’re on, and unlock your video streaming services. Get a massive discount on their two-year plan, and an extra free month, at nordvpn.com/sundell . MacStadium : The leading provider of cloud solutions built on real Mac hardware. Get started at macstadium.com/sundell . Links Sean on Twitter John on Twitter Sean’s new course: Dub Dub Grub Sean’s YouTube channel CloudKit Dribbble Behance Sean’s MVVM video Different flavors of view models in Swift The SwiftUI environment API Stack Overflow answer about SwiftUI and view models The factory pattern The recent episode with David Smith WWDC by Sundell & Friends Sean’s most recent portfolio review video Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 97: “Anything can happen during WWDC”, with special guest Ish ShaBazz 1:03:27
1:03:27 Play Later Play Later Lists Like Liked1:03:27
Play Later Play Later Lists Like LikedIsh 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? Sponsors Instabug : Incredibly useful bug, crash, and performance monitoring for iOS apps. Go to instabug.com/sundell to start your free trial. MacStadium : The leading provider of cloud solutions built on real Mac hardware. Get started at macstadium.com/sundell . Links Ish on Twitter John on Twitter Capsicum Stacktrace The official changelog for Swift 5.5 Actors Async/await Chained implicit member expressions Grand Central Dispatch OperationQueue Combine TextEditor Using the SwiftUI app lifecycle WidgetKit SwiftUI’s state management system Widgetsmith NSHostingView ARKit Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 96: “Gesture-driven animations”, with special guest Adam Bell 1:12:57
1:12:57 Play Later Play Later Lists Like Liked1:12:57
Play Later Play Later Lists Like LikedAdam 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. Sponsors MacStadium : The leading provider of cloud solutions built on real Mac hardware. Get started at macstadium.com/sundell . Instabug : Incredibly useful bug, crash, and performance monitoring for iOS apps. Go to instabug.com/sundell to start your free trial. Links Adam on Twitter John on Twitter Motion The previous episode with Adam Decomposed CATransform3D SIMD Core Animation UIViewPropertyAnimator CADisplayLink Time complexity Imagine Engine Swift’s @_specialize attribute Static vs dynamic dispatch in Swift Swift’s @inlinable attribute CATransaction UISpringTimingParameters CAKeyFrameAnimation SwiftUI’s animation API Detecting whether the “reduce motion” accessibility setting is enabled Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 95: “Concurrency orchestration”, with special guest Brent Simmons 57:25
57:25 Play Later Play Later Lists Like Liked57:25
Play Later Play Later Lists Like LikedBrent 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. Sponsors NordVPN : Make your Internet connection private and secure, no matter which network that you’re on, and unlock your video streaming services. Get a massive discount on their two-year plan, and an extra free month, at nordvpn.com/sundell . Bitrise : Rock-solid continuous integration for your Swift project, which now also supports ad-ons for things like automatic deployment. Go to bitrise.io/swift to get started for free. Links Brent on Twitter John on Twitter NetNewsWire Brent’s blog: inessential.com The previous episode with Brent NetNewsWire on GitHub How NetNewsWire Handles Threading Basics: Grand Central Dispatch Using the more advanced features of Grand Central Dispatch OperationQueue Pure functions Intro and outro music by Dariusz Dziuk…
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Swift by Sundell
1 94: “A Mac-like Mac app”, with special guest Benedikt Terhechte 1:11:17
1:11:17 Play Later Play Later Lists Like Liked1:11:17
Play Later Play Later Lists Like LikedBenedikt 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. Sponsors Stream : Build scalable in-app chat or activity feeds in record time using Stream’s open source, Swift-native SDK that’s backed by enterprise-grade server infrastructure. Get started for free at getstream.io/sundell . Clubhouse : A lightweight, yet powerful project management tool that’s built specifically for software teams. Try it for free for two months at clubhouse.io/sundell . Links Benedikt on Twitter John on Twitter Hyperdeck on Twitter The previous episode with Benedikt Hyperdeck The Contravariance podcast Mac Catalyst NSDocument An example of embedding a GeometryReader as a background The isFlipped property The NSView animator API NSProxy NSCollectionView Triggering terminal commands from Swift Intro and outro music by Dariusz Dziuk…
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