System Architecture Articles

Android SELinux Access Control Architecture: sepolicy Compilation, Domain Transitions, and neverallow Auditing

Starting from an avc denial log, this article systematically walks through Android SELinux's sepolicy compilation pipeline, domain transitions, contexts mapping, and neverallow auditing, with native service troubleshooting and practical advice.

Android Wi-Fi Connections: Use Modern APIs and Debug Layers

(Updated on )
Choose the correct Android Wi-Fi API, handle permissions and callbacks, and isolate failures from app policy through the Wi-Fi stack.

Android Location Internals: LocationManager, Fused Provider, and GNSS HAL

A full-stack look at Android location, from LocationManager and the Fused Provider's Kalman filtering to GNSS HAL, NMEA parsing, AGPS, jump debugging, and power strategy.