Build Location-Based Projects for iOS

Combining Day Entry Views for a Week Overview

The day entry view needs the maximum duration to provide the correct scaling to its rectangle. Before we can show the day entry views for the last seven days, though, we need to calculate the maximum duration of these entries. Open LocationProvider and add the following property:

Geofences/IntoTheWild/IntoTheWild/LocationProvider.swift

var max: TimeInterval = 1

To calculate the maximum, replace the dayEntries property declaration with the following code:

Geofences/IntoTheWild/IntoTheWild/LocationProvider.swift

@Published var dayEntries: [DayEntry] = []  {
  didSet {
    max = dayEntries.reduce(1.0, { result, nextDayEntry in
      Swift.max(result, nextDayEntry.duration)
    })