BikeLog

A playground for HealthKit workout data

BikeLog is an open source app exploring modern app development through the lens of displaying workout data from HealthKit.

Development Concepts

Framworks

• SwiftUI
• Combine
• Async/Await
• Measurement API
• iOS 15 formatted API

Implementation Callouts

• Protocol based data provider HealthProvider to allow for mock providers that do not require HealthKit.
• Composable SwiftUI views, each with a PreviewProvider that uses mock data.
• AppStorage for preferences.
• HealthKit data updates sent back to an ObservableObject via a Publisher.
• HealthKit queries use the new Async HealthKit APIs available in iOS 15.4.
• Extending the Measurement API to create custom units to represent "pace" based speed.
• Unit Testing.