fix: Live Activity countdown ticks on its own (#1187) - #1406
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Included review availability: Your plan provides up to 2 included reviews per hour; 0 remain after this review. 📝 WalkthroughWalkthroughThe live activity card now uses SwiftUI date-relative text for its countdown badge and departure pills. Both displays show “NOW” after departure and preserve their existing styling. ChangesLive activity countdown display
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: ⚪ Minimal · up to The Live Activity countdown and departure displays now use date-relative rendering to update automatically, with no outstanding merge-readiness risk identified. 🚥 Pre-merge checks | ✅ 3 | ❌ 2❌ Failed checks (2 warnings)
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Full details: Linked Issues checkExplanation The PR implements self-updating countdown and departure chips [
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Inline comments:
In `@OBAKitCore/UI/TripLiveActivityCardView.swift`:
- Around line 123-124: Update TripLiveActivityCardView.body and
upcomingArrivals(now:) so an arrival remains available at the departure
boundary, then render "NOW" explicitly in both affected arrival branches instead
of relying only on Text(..., style: .relative). Add regression coverage proving
the transition to "NOW" occurs without a content-state update at both sites in
OBAKitCore/UI/TripLiveActivityCardView.swift (anchor lines 123-124 and sibling
lines 168-169).
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OBAKitCore/UI/TripLiveActivityCardView.swift
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Replace static '\(minutes)m' strings in countdownBadge and departurePill with SwiftUI's date-relative Text(date, style: .relative), which updates automatically on the lock screen without requiring a keepalive push to re-render the snapshot. - countdownBadge: replaces CountdownView(minutes:) with Text(.relative) + RealtimeGlyph inline, so the badge stays self-updating - departurePill: replaces the manual minute calculation with Text(.relative) - Both fall back to 'NOW' when departureDate is in the past This eliminates the need for obacloud to send a keepalive push every 55s purely to advance the displayed clock.
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Closes #1187
Summary
The Live Activity lock-screen card was displaying a static countdown string (
"\(minutes)m") baked in at push time. Because there is no process running behind a Live Activity, nothing re-rendered the archived snapshot on its own — the displayed time only advanced when obacloud sent the next push. This forced obacloud to send a keepalive push every 55 seconds purely to advance the clock, even when no arrival data had changed.This PR replaces the static minute strings with SwiftUI's built-in date-relative
Text(date, style: .relative), which the system renders and updates automatically on the lock screen without requiring any background process or a push to trigger a re-render.What changed
File:
OBAKitCore/UI/TripLiveActivityCardView.swiftcountdownBadge(for:now:)CountdownView(minutes: Int(...))with an inlineText(arrival.departureDate, style: .relative)+RealtimeGlyph, matching the visual layout of the original badge."NOW"string whendepartureDateis in the past (negative interval), since.relativewould render "0 seconds ago" which is not the right UX.departurePill(for:now:)Int(arrival.departureDate.timeIntervalSince(now) / 60.0)calculation and"\(minutes)m"string withText(arrival.departureDate, style: .relative)."NOW"fallback for past dates.Why this approach
SwiftUI's
Text(_:style:)with.relativeis specifically designed for self-updating countdowns in Live Activities and Widgets. It is rendered by the system as a live timer with no app process involvement — exactly what this surface needs.Both changed sites are internal
@ViewBuildermethods, so no public API changed and no call sites outside the file are affected.Summary by CodeRabbit