Developer Builds Battery-Efficient Android Geofencing Engine to Auto-Toggle Sound Profiles

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A developer created an Android geofencing system that automatically switches phone sound profiles based on the user's physical location, eliminating the need for manual toggles. The solution uses Google Play Services' GeofencingClient, which offloads location tracking to the OS so the app only activates when a geographic boundary is crossed. To prevent battery drain, the implementation avoids continuous GPS polling and instead relies on system-level location hardware management with a roughly 100-metre geofence radius. A GeofenceBroadcastReceiver hands off triggered events to WorkManager, ensuring reliable execution even when the device is in Doze mode. A key challenge identified was that GeofencingClient registrations are wiped on device reboot, requiring an additional re-registration strategy to maintain functionality.

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Laid-Off Developer Builds AI Tools to Automate Resume Scoring and Job Filtering

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

Why 7:45 Is Not 7.45 Hours: The Math Behind Timesheet Decimal Conversion

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