Save workouts to Apple Health with live watch metrics and a post-workout summary

Watch sessions now run an HKLiveWorkoutBuilder: heart rate and active
energy are collected live (shown in an in-workout HUD), saved to Health
as a real HKWorkout on completion, and carried back to the phone as
WorkoutMetrics on the workout document. Phone-only workouts get an
estimated Health workout (MET x bodyweight x duration) after a 10s
debounce that a late-arriving watch session cancels; a launch sweep
backfills workouts completed within the last day. Dedupe is keyed on
metrics.healthKitWorkoutUUID plus the metrics source.

Splits gain an activity type (strength, functional, HIIT, core, cardio,
cycling) that categorizes the Health workout and picks the MET value.
A post-workout summary sheet (duration, calories, avg/max HR, HR zones,
total volume) fills in live and is also shown on completed workouts.
Weights can now display in lb or kg (display-only relabel), synced to
the watch over the existing application context.

WorkoutDocument schema 1->2 (metrics are irreplaceable, so older apps
must quarantine rather than strip them); cache schema 2 rebuilds the
SwiftData store with the new metric columns. Deleting a workout in the
app intentionally leaves its Health record in place.
This commit is contained in:
2026-07-05 07:46:35 -04:00
parent c96b1a288b
commit 0ad93a09da
33 changed files with 950 additions and 57 deletions
@@ -23,9 +23,9 @@
<key>ITSAppUsesNonExemptEncryption</key>
<false/>
<key>NSHealthShareUsageDescription</key>
<string>Workouts uses Health to run a workout session on your watch so the app stays active while you train.</string>
<string>Workouts reads your heart rate and active energy during a watch workout to show your live stats.</string>
<key>NSHealthUpdateUsageDescription</key>
<string>Workouts uses Health to run a workout session on your watch so the app stays active while you train.</string>
<string>Workouts records your watch workout and saves it to Apple Health (including heart rate and active energy) so it counts toward your Activity rings.</string>
<key>WKBackgroundModes</key>
<array>
<string>workout-processing</string>
@@ -4,6 +4,9 @@
<dict>
<key>com.apple.developer.healthkit</key>
<true/>
<!-- healthkit.access is for clinical health-records access ONLY. The live
workout session uses standard workout/quantity access, which needs no
entries here — leave it empty. -->
<key>com.apple.developer.healthkit.access</key>
<array/>
</dict>