Architecting a Low-Power Geofencing Engine for Android

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Existing solutions often felt bloated, requiring cloud syncs or constant battery-draining polling that made my phone feel sluggish. My primary concern was the trade-off between location accuracy and battery longevity. What surprised me most was the fragility of background execution on modern Android versions. Android’s 'Doze' mode and manufacturer-specific battery optimizations are aggressive. Don't build a 'polling-based' system if an 'event-based' system exists in the platform's APIs.

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