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What's new in Swift and SwiftUI (WWDC 2026)

Overview of WWDC 2026 updates for Swift and SwiftUI. Highlights major language changes, new/updated SwiftUI components, and their impact on app architecture, performance, and developer productivity. Shares migration tips and examples to adopt the APIs and notes tooling changes. Takeaway: plan upgrades and leverage new capabilities.

Taking control of toolbar items in SwiftUI

SwiftUI adds finer toolbar control: set visibilityPriority (.automatic/.low/.high) on ToolbarContent to influence which items collapse; group actions with ToolbarOverflowMenu (always-collapsed); pin key buttons via .topBarPinnedTrailing; and use toolbarMinimizeBehavior to minimize nav/tab/bottom/window bars on scroll.

UIKit for scroll performance!? Real engineers use Metal.

Cloning Photos, a UICollectionView grid collapses at 31 columns: layoutSubviews, cellForItemAt, and PHImageManager dominate the main thread, causing hitches. The fix: keep UIKit’s scroll physics but render with Metal on the GPU to target 120fps. Use Instruments to verify.

AsyncImage improvements in iOS 27

iOS 27 upgrades SwiftUI AsyncImage: new URLRequest initializers let you set headers (auth), cache policy, and timeouts; a phase-based form + Transaction handles loading/success/failure; asyncImageURLSession(_:) injects a shared URLSession. When request is nil, the placeholder remains.

What's New in Xcode 27: The Complete Guide

Xcode 27 adds agent‑driven dev: on‑device completions plus pluggable cloud agents (ACP/MCP) in‑editor with plan mode, self‑checks, and inline Coding Tools. Device Hub, Organizer fix suggestions, refreshed Swift Testing, Instruments Top Functions, faster Xcode Cloud, and bundled Apple Agent Skills. Apple silicon only.

Weather App Style Sticky Scroll Section Using SwiftUI | Sticky Section + Header | Scroll Effects

Recreate Apple Weather–style sticky scroll sections in SwiftUI. Set up a ScrollView with Sections and a sticky header, leveraging pinning (e.g., LazyVStack pinnedViews) and scroll effects to collapse/expand headers. Takeaway: build reusable, smooth sticky headers for richer SwiftUI list UIs.

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What's new in Swift and SwiftUI (WWDC 2026)

Overview of WWDC 2026 updates for Swift and SwiftUI. Highlights major language changes, new/updated SwiftUI components, and their impact on app architecture, performance, and developer productivity. Shares migration tips and examples to adopt the APIs and notes tooling changes. Takeaway: plan upgrades and leverage new capabilities.