// 127 articles available
The Xcode MCP server connection prompt interrupts your flow every time you restart Claude Code or clear your session. Here's how to automate it away using hooks.
Learn how to use Swift's @Observable macro introduced in iOS 17, understand its advantages over ObservableObject, and migrate your existing code to the modern observation system.
Learn how to create beautiful, interactive charts in SwiftUI using Apple's Swift Charts framework, from simple line charts to customized bar graphs.
Skip Expo Go and test your development build directly on a physical device using Bonjour for automatic network discovery.
When Metro won't start because port 8081 is already in use, you likely have an orphaned process. Here's how to find and kill it properly.
A practical guide to implementing in-app purchases and subscriptions with StoreKit 2, covering products, transactions, subscription status, and SwiftUI integration.
Apple released Swift System Metrics 1.0, a package that collects process-level metrics like CPU time, memory usage, and file descriptors with a unified API across Linux and macOS.
Learn how to test push notifications on iOS simulators without needing a device or server setup using xcrun simctl push.
Compare @AppStorage, UserDefaults, and SwiftData for persisting data in Swift apps. Learn when each approach makes sense and how to use them effectively.
If your Live Activity renders a grey box instead of your image, the problem is almost certainly the image size. Here's how to fix it.
Use the #Preview macro to preview your Live Activity views directly in Xcode without running the full app.
Claude Code can commit changes automatically while it works. Here's how to set that up using hooks, CLAUDE.md instructions, and the right permission configuration.
When SwiftUI previews break, the error messages aren't always helpful. Here's how to debug them, clear caches, and get back to a working state.
Objective-C's nullability annotations tell the compiler which pointers can be nil. They catch bugs at compile time and make your code bridge to Swift cleanly.
Vercel's Skills library lets you add reusable instruction sets to AI coding agents. Here's how to use it to make agents more effective for React Native development.
Learn different ways to set background colors on SwiftUI views, from simple color fills to gradients and materials.
React Navigation v8 is in alpha and I'm genuinely excited. Native bottom tabs, smarter TypeScript inference, and a long-awaited fix for deep linking behind auth screens. This one's going to be good.
Learn what the "some" keyword means in Swift, how opaque return types work, and why SwiftUI uses "some View" everywhere.
React Native projects require running lots of shell commands. Here's how to configure Claude Code's permission system so you're not constantly approving the same operations.
Xcode 26.3 ships with a built-in MCP server that exposes project structure, build actions, and test results to external AI tools. Here's how to set it up.
Objective-C's lightweight generics let you specify element types for collections like NSArray<NSString *>. They catch type mismatches at compile time and improve Swift bridging.
A practical guide to choosing between SwiftUI and UIKit in 2026, based on your project requirements, team experience, and the current state of both frameworks.
Swift offers actors, GCD, and locks for thread safety. Each solves the same problem differently. Here's how to choose.
Actors provide compile-time safety for shared mutable state in Swift. Here's when to use them and how they compare to older approaches.
Grand Central Dispatch remains a practical choice for thread safety in Swift, especially when you need synchronous access or are working with legacy code.
Locks offer the lowest overhead for thread synchronization in Swift. Here's when that matters and how to use them safely.
NavigationStack replaced NavigationView in iOS 16 with a more powerful programmatic navigation model. Here's what changed and how to migrate.
A practical introduction to async/await in Swift, covering the fundamentals you need to write concurrent code that's both safe and readable.
Both async/await and Grand Central Dispatch solve concurrency problems, but they approach them differently. Here's how to choose between them.
Google Play now requires 16KB page size support for Android apps. Here's how to fix alignment errors in your React Native project before your next release gets rejected.