LocalAuthentication in SwiftUI (iOS 26): Face ID and Touch ID Complete Guide
How to add Face ID, Touch ID, and Optic ID to a SwiftUI app on iOS 26 using LocalAuthentication, with LAPolicy tips, LAError handling, and Keychain binding for secrets.
All Articles
SwiftUI KeyframeAnimator in iOS 26: The Complete Guide to Multi-Track Keyframe Animations
A hands-on guide to SwiftUI KeyframeAnimator in iOS 26: multi-track parametric keyframes, when to reach for it over PhaseAnimator, and how to sync motion with haptics.
Keychain Services in Swift: The Complete Guide to Secure Storage in iOS 26
Keychain Services is Apple's hardware-backed secure storage API for saving passwords, tokens, and cryptographic keys. This iOS 26 guide covers SecItemAdd, access control, biometric protection with LocalAuthentication, iCloud Keychain sync, and Secure Enclave keys with CryptoKit.
SwiftUI Toolbar in iOS 26: ToolbarItem, Placement, and Customization Guide
Master the SwiftUI toolbar in iOS 26. ToolbarItem placements, keyboard bars, Liquid Glass styling, VoiceOver, and cross-platform behavior on iPhone, iPad, and Mac.
Swift ~Copyable Types: Ownership, Borrowing, and Consuming in Swift 6
Learn Swift's ~Copyable types with borrowing, consuming, and the consume operator. Real-world resource wrappers, generics, common pitfalls, and Swift 6 examples.
Combine Framework in Swift 6: Publishers, Operators, and async/await Migration for iOS 26
Master the Combine framework in Swift 6, then migrate the pieces that make sense to async/await and AsyncSequence for cleaner iOS 26 code.
SwiftUI TextRenderer in iOS 26: Custom Text Animations and Per-Glyph Effects
SwiftUI TextRenderer in iOS 26 gives you glyph-, run-, and line-level control over Text drawing. Learn the protocol, three working effects, and the Dynamic Type edges that trip most people up.
OSLog and Logger in Swift: Structured Logging, Privacy Levels, and OSLogStore in iOS 26
A practical guide to Apple's unified logging in Swift for iOS 26: how Logger replaces print, when to use each log level, how privacy annotations protect PII, and how OSLogStore and OSSignposter power in-app diagnostics and performance tracing.
SwiftUI PhaseAnimator in iOS 26: Multi-Step Animation Sequences Without State Machines
SwiftUI's PhaseAnimator walks a view through ordered animation phases from a single trigger, replacing @State flags and asyncAfter chains. Learn per-phase curves, trigger patterns, and how to combine it with CustomAnimation, plus real-world code for like buttons and toasts.
Xcode Instruments for SwiftUI: Profiling Hangs, Frame Drops, and Memory Leaks in iOS 26
Profile SwiftUI apps with Xcode Instruments in Xcode 26. A real-device workflow for finding hangs, frame drops, and memory leaks, plus custom signposts with OSSignposter.
HealthKit in SwiftUI: The Complete Guide to Reading, Writing, and Live Health Data in iOS 26
Ship real HealthKit features in SwiftUI on iOS 26: async authorization, hourly step buckets, live heart rate as an AsyncSequence, workout builders, and background delivery, with all the Info.plist gotchas laid out.
SwiftUI matchedGeometryEffect: The Complete Guide to Hero Animations and Namespace Morphing
SwiftUI matchedGeometryEffect morphs a view's frame between two states via a shared @Namespace. Learn the API, spring tuning, and hero animation patterns for iOS 26.