Smart GPS logger

This is a very small Android application which aims to store the user GPS locations on the SDCARD. This application uses a "smart" and customizable policy to be as power efficient as possible without any hardware facilities.

Unlike the usual GPS logger application, SmartGPSLogger does not intend to get a precise GPS track. It's a background application which does not need many power and try to get a global track during a trip.

You specify the minimum period and the maximum period in minutes (3 minutes and 30 minutes by default). The application automatically set next wakeup time between these two values taking into account the last positions (close, far, failed to get a new GPS fix, ...). Therefore, when you stay in the same area or the GPS location is unavailable like inside a building, the interval period will automatically slow down to save your battery life.

Data are stored in /sdcard/SmartGPSLogger/*.log (one file a day), one line by location. Each line is formatted as follow:
date,time,latitude,longitude,speed,altitude,closeToPrevious
The last field is set to "true" if the location is close to the previous in regard to the minimum distance preference, "false" otherwise.

Sources are available here: http://github.com/oux/SmartGPSLogger