Location Open Source Tracker (for Android)
This project seeks to provide an open source alternative to the Google Play services location APIs that depends only on the Android SDK. It provides 1:1 replacements for the FusedLocationProviderApi, GeofencingApi, and SettingsApi.
Lost operates by making calls directly to the LocationManager. Lost can run on any Android device running API 15 or higher regardless of whether or not it supports the Google Play ecosystem.
For a working example please refer to the Sample App.