Track Your Movement Across Any Terrain
A complete iOS app that captures GPS coordinates, stores them persistently, and displays your path on an interactive map.
The Problem
Building a location tracker requires mastering four Apple frameworks simultaneously: Core Location for GPS data, Combine for reactive data flow, Core Data for persistence, and SwiftUI with MapKit for visualization. Wiring these together correctly is complex and time consuming.
The Solution
This complete iOS application demonstrates professional grade location tracking:
- Core Location Integration - CLLocationManager with proper delegate setup
- Combine Pipeline - PassthroughSubject publishing coordinates
- Core Data Persistence - Store all tracked positions
- MapKit Visualization - Display positions as markers on a map
- SwiftUI Interface - @FetchRequest for automatic UI updates
The Benefits
- Save 20 to 35 hours of framework integration work
- Complete data pipeline from GPS to database to map
- Reactive architecture using modern Combine patterns
- Persistent storage - positions survive app restarts
- Clean connections between components
Architecture Overview
CLLocationManager -> LocationPublisher (Combine) -> CoreData -> SwiftUI Map
The elegant connection:
locationPublisher.sink(receiveValue: PersistenceController.shared.add)Features
- Real time location tracking
- Automatic position persistence
- Map visualization with blue dot markers
- Clear all data option
- Info.plist keys for location permissions
What You Get
Complete Xcode workspace with fully functional location tracking iOS app. Watch your path appear on the map in real time.
Ready to build your own location tracking app? Get the complete source code below.