iOS guides for Swift and SwiftUI developers. Diagnose app hangs, crashes, memory leaks and main thread issues, and build faster, more reliable apps with Xcode, Instruments and Swift concurrency.
82 articles, newest first. Page 1 of 7.
From silent app hangs and Watchdog kills to verified Swift 6 fixes in 15 minutes: How Appxiom Model Context Protocol (MCP) bridges structured iOS telemetry into AI coding agents.
Don Peter14 min read
Learn how to write custom Swift macros with SwiftSyntax: set up a Swift macro compiler plugin, cover freestanding vs attached, test expansions, debug in Xcode.
Don Peter10 min read
Master SwiftUI ScrollView snapping with .scrollTargetBehavior(.viewAligned) and .scrollTransition. Build paged carousels with clean layout and performance tips
Robin Alex Panicker9 min read
A production-grade swift openapi generator tutorial: build a type-safe iOS networking layer with URLSession middleware, SPM plugin setup, repositories, and CI
Robin Alex Panicker14 min read
iOS App Intents debugging with production telemetry: os.Logger, signposts, MetricKit, and Apple Intelligence to improve Siri intents performance.
Robin Alex Panicker13 min read
Learn how to migrate Core Data to SwiftData in SwiftUI: map entities, open your existing SQLite store, and use VersionedSchema + SchemaMigrationPlan.
Robin Alex Panicker15 min read
Practical swiftdata architecture swiftui: where to place ModelContainer, build repositories, use ModelActor concurrency, leverage @Query, plus testing.
Don Peter13 min read
Learn how to reproduce and fix iOS locale and timezone crashes using Dependency Injection, en_US_POSIX, DST-safe Calendar math, and a CI test matrix.
Don Peter9 min read
Fix @MainActor violation with Swift 6 strict concurrency checks and Xcode Main Thread Checker. Practical SwiftUI/UIKit patterns, plus MainActor.run vs Task.
Sandra Rosa Antony9 min read
Troubleshoot URLSession background download not working on iOS. Fix stalls in Swift, wire handleEventsForBackgroundURLSession, and reduce nsurlsessiond CPU.
Robin Alex Panicker12 min read
Master mobile app performance by efficiently managing SwiftUI resource loading and memory to prevent crashes and enhance user experience in media-heavy apps.
Sandra Rosa Antony6 min read
Master mobile app performance monitoring with signposts and logging in Instruments to detect hidden iOS latency and improve user experience proactively.
Andrea Sunny7 min read
Appxiom traces silent failures, frozen frames and broken user journeys back to the code that caused them, and shows what each one costs. Bring that context into your AI coding agent with the Appxiom MCP Server and Agent Skills.
