Don't Get Lost with the Android Localization Framework
summary
Explains how Android obtains latitude/longitude by fusing GNSS, Wi‑Fi, cellular and sensor inputs and names the specific APIs involved: GnssMeasurements and GnssNavigationMessage for raw satellite data, FusedLocationProvider and the legacy LocationManager for system fixes, plus A‑GPS servers and Wi‑Fi RTT to speed fixes. Describes that raw GNSS ephemerides stream slowly (~12.5 minutes) so apps can compute their own fixes, and gives concrete examples (GNSS Analysis, GPS Test) and guidance on refresh rates and when sensor fusion improves accuracy.
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chapters (9)
- 0:00Start
- 2:10Syntony GNSS
- 3:05Table of contents
- 3:42Warning
- 5:16What is geolocation?
- 9:32How Android localizes itself
- 35:44The Raw Measurements
- 44:31Some good practices
- 45:59Questions?
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