// 24 articles available
An app that ran fine for years suddenly hangs on the splash screen when you debug it on an iOS 27 device, with an OS_dispatch_mach_msg unrecognized selector in the console. Here is what causes it and the one-line fix.
Xcode 27 dropped support for deployment targets below iOS 15. If your build now fails with IPHONEOS_DEPLOYMENT_TARGET set to a lower value and a supported range of 15.0 to 27.0, here is why and how to fix it.
Xcode 27 brings monthly subscriptions with a 12-month commitment, a reworked offer code redemption API, Bundles and Suites, and a unified App Review submission flow. Here is what each one changes for your code.
A practical guide to App Tracking Transparency in iOS, covering the Info.plist usage description, the ATTrackingManager API, authorization statuses, and when to actually prompt the user from SwiftUI.
How to set up custom URL schemes and Universal Links in iOS, handle incoming URLs in SwiftUI, and route users to the right screen.
A practical guide to scheduling and handling local notifications in iOS using UNUserNotificationCenter, from permission requests to actionable notification categories.
Understand the key difference between a UIView's frame and bounds properties, and when to use each in your iOS apps.
Master Swift's TaskGroup for parallel async work with proper cancellation, error handling, and result collection. Learn common patterns for batch operations and concurrent pipelines.
Swift 6 introduces typed throws, letting you declare exactly which error types a function can throw. Learn how this improves API contracts and enables exhaustive error handling.
Learn how to use Swift's RegexBuilder DSL to create readable, type-safe regular expressions with compile-time checking and strongly-typed captures.
Learn how to create beautiful, interactive charts in SwiftUI using Apple's Swift Charts framework, from simple line charts to customized bar graphs.
A practical guide to implementing in-app purchases and subscriptions with StoreKit 2, covering products, transactions, subscription status, and SwiftUI integration.
Learn how to test push notifications on iOS simulators without needing a device or server setup using xcrun simctl push.
Make your glass elements respond to touch with scaling, shimmer effects, and touch-point illumination using the interactive() modifier and glass button styles.
The glassEffectID modifier enables glass views to smoothly morph into one another during state changes, creating fluid transitions that feel native to iOS 26.
When you have multiple glass elements that should blend and animate together, GlassEffectContainer coordinates their rendering for seamless visual results.
iOS 26 introduces Liquid Glass, a translucent design language for navigation elements. Here's how to apply the glassEffect modifier to your custom views.
Learn how to use AlarmKit to schedule alarms and countdown timers that appear on the Lock Screen and Dynamic Island on iOS 26.
Learn how to use AppStore.ageRatingCode to read your app's current age rating and react to rating changes for parental consent compliance.
PermissionKit lets children request parental permission to communicate with new contacts directly through Messages. Here's how to integrate it into your social or messaging app to create safer communication experiences.
Learn how to detect when users enable Low Power Mode and automatically reduce animations, refresh rates, and visual effects to preserve battery life in your SwiftUI app.
How to traverse the view controller hierarchy to find the currently visible view controller.
How to check available and total disk space on iOS devices using URL resource values.
How to resolve the pod install error caused by Xcode 16's new folder-based group structure.