HAL Articles
Deep Dive into Android's Haptic Feedback System: From VibrationEffect Waveform Synthesis to Vibrator HAL Haptic Design Engineering Practice
From VibrationEffect waveform synthesis and VibratorManager scheduling to HAL drivers, dissect Android's haptic feedback chain and summarize haptic design engineering practices under power-save mode.
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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.
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