Developer Builds Android App to Automate Phone Sound Profiles After Public Embarrassment

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A software developer created an Android app called Muffle after his phone rang loudly during a medical appointment, prompting him to automate sound profile management. The app uses a ForegroundService, WorkManager, and AudioManager to schedule and apply audio changes without user intervention. A key challenge was keeping the service alive through Android's Doze mode, which aggressively restricts background processes to save battery. The developer also built a Room-managed SQLite database to handle overlapping schedules, ensuring the phone reverts to the correct audio state after each event ends. Inconsistent GPS geofencing behavior across device manufacturers emerged as an additional technical hurdle during development.

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Developer finds most insightful comments on his technical posts came from bots

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