Developer builds battery-efficient geofencing engine for Android to manage phone silence

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A developer created an app called Muffle to automatically manage a phone's silent mode based on location. The system uses Android's GeofencingClient API to trigger actions when a user enters or exits a defined area. It was designed to run locally without internet and to minimize battery drain by avoiding constant GPS polling. The architecture uses a priority system to handle conflicting rules and a PendingIntent to wake the app only when needed.

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