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SF Symbols in UIKit and AppKit Using the new SF Symbol features in UIKit and AppKit.

Make blazing fast lists and collection views Use prefetching and cell reconfiguration.

Your guide to keyboard layout A new Auto Layout keyboard layout guide to keep your views away from the keyboard and optionally switch constraints when the undocked keyboard is near/away from edges.

Customize and resize sheets in UIKit Medium (half-screen) sized and non-modal sheets.

Meet the UIKit button system Buttons are back to looking like buttons with easier customization, dynamic type and multiline support.

What’s new in UIKit Start with the quick summary of what’s changed.

There are some useful refinements here too:

Direct and reflect focus in SwiftUI Controlling focus.ĭon’t forget about UIKit.

SF Symbols in SwiftUI New modifiers and rendering modes for the updates to SF Symbols 3.

Add rich graphics to your SwiftUI app Using safe areas, foreground styles, materials and drawing with the canvas view.

A cross-platform searchable modifier with support for search suggestions.

Craft search experiences in SwiftUI No more rolling your own search bar.

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Discover concurrency in SwiftUI Great session on how to use concurrency with SwiftUI.I’d love to see a session like this on SwiftUI layout.

Async image loading, async task modifiers, list separator customizations, swipe actions, tables on macOS, searching, canvas for drawing, markdown text support, focus and button styles and more. What’s new in SwiftUI An overview of many of the changes.

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The third release of SwiftUI is a solid update with lots of rough edges removed and gaps filled: Experimental build setting to optimize object lifetimes. ARC in Swift: Basics and beyond Don’t rely on observed object lifetimes.Meet the Swift Algorithms and Collections packages I like how we’re getting these Swift standard libraries as open source Swift packages.Discover and curate Swift Packages using Collections Create and share collections of Swift Packages.Write a DSL in Swift using result builders Great session on using result builder to create your own DSL.Swift concurrency: Update a sample app Don’t miss this refactoring session with Ben Cohen.

The theory is great but how do you use it?

Protect mutable state with Swift actors.

Explore structured concurrency in Swift.

This session helped me understand what it means.ĭeeper sessions that I’m going to be rewatching many times…

Meet async/await in Swift I was a little unsure about the excitement around async/await.

This first session is essential viewing but note that Swift Concurrency needs iOS 15: Swift Concurrency and async/await/actors are one of the big features this year.

What’s new in Swift A recap of what’s been happening with Swift and some of the changes in Swift 5.5.

The open source nature of the Swift project makes these sessions less of a surprise but they are still essential viewing: There’s no padding and Apple’s engineers get to the point quickly. There are a lot of sessions, but many are short (10-20 minutes). The video player supports from 0.5x to 2x playback, many videos have transcripts and support copying of the onscreen sample code. I watch the videos using the Apple Developer app.

Meditation for fidgety skeptics might help.

Don’t burn yourself out trying to keep up. Many of the new API’s require iOS 15 so it may be a while before you can use them. You may feel like you’re getting left behind. There’s a huge amount of new stuff to learn. You don’t have to learn everything new today! It has a demo of Xcode Cloud, Holly Borla introducing the Swift concurrency changes, Josh Shaffer covering updates to SwiftUI and more. Watch the Platforms State of the Union (SOTU) for a summary of what’s new. Here’s my viewing guide for the WWDC 2021 sessions I found interesting this year.

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