LLM Best Practices

iOS & SwiftUI Development

2 min read

SwiftUI-first iOS development. The Swift language page lives under Coding > Swift; this domain covers framework-specific patterns.

Pages

  • swiftui: View composition, observation, navigation, previews.
  • mapkit: MapKit for SwiftUI: annotations, overlays, performance.
  • mapkit-annotations: How to place Marker and Annotation items on a SwiftUI Map, build custom annotation views, cluster dense pins, and keep tap targets accessible.
  • mapkit-overlays: Drawing routes, zones, and custom tile layers on a MapKit map using MapPolyline, MapPolygon, MKMapOverlayRenderer, and MKTileOverlay.
  • mapkit-camera: Controlling MapCameraPosition in SwiftUI Map views: fly-to animations, follow-user mode, region framing, and reading camera state without performance overhead.
  • mapkit-search: Using MKLocalSearch, MKLocalSearchCompleter, and CLGeocoder to find places, provide autocomplete, and resolve addresses in MapKit for SwiftUI.
  • mapkit-look-around: Integrating Apple Maps Look Around into a SwiftUI app: fetching scenes, displaying LookAroundPreview, generating snapshots, and handling coverage gaps.
  • core-data: Stack setup, concurrency, migrations.
  • core-data-stack: Setting up NSPersistentContainer correctly: loading the store, configuring viewContext, choosing between a singleton and dependency injection, and wiring into SwiftUI.
  • core-data-fetch-requests: Writing efficient Core Data fetch requests: predicate syntax, sort descriptors, fetch limits, batch fetching, and NSBatchUpdateRequest for bulk writes.
  • core-data-concurrency: Safe Core Data concurrency in Swift 6: perform/performAndWait, context confinement, passing object IDs across contexts, and parent-child context patterns.
  • core-data-migrations: Managing Core Data schema evolution: when lightweight migration suffices, how to write a custom mapping model, versioning best practices, and testing migrations in CI.
  • core-data-swiftdata-comparison: Decision guide for choosing between Core Data and SwiftData: deployment targets, migration complexity, CloudKit, schema features, and coexistence patterns.

13 items under this folder.