https://ricosheaven.com/en/tags/android/ Recent content in Android on RICO STUDIO Hugo en Tue, 20 Oct 2026 05:00:00 +0900 https://ricosheaven.com/en/posts/pomodoro-v2-part5-background-timer-watch-bidirectional-sync/ Tue, 20 Oct 2026 05:00:00 +0900 https://ricosheaven.com/en/posts/pomodoro-v2-part5-background-timer-watch-bidirectional-sync/ The finale of our 5-part series: how we engineered wall-clock persistence (targetEndEpochMs) that survives swipe-kills, iOS in-memory silent PCM WAV loops, Android Partial WakeLocks, and race-condition-free bidirectional sync across Apple Watch (WCSession) and Galaxy Watch (Wearable Data Layer).