I am writing an app that will will follow a route on the map, very similar
to a car navigation (except that it is following a specific route, not
simply trying to get to a location).
What I am interested in is what would you recommend regarding which
provider to use, and what criteria to use when listening for location
changes.
Overall what I need to do is the following:
1. Announce when I am off course by about 100 meters
2. Announce when I am approaching a turn by about 100-200 meters
3. go to the next waypoint when I arrive at a turn (about 50 meters)
4. cyclists ride about 10-30 MPH
5. Rides generally last 3-8 hours (so think battery power).
Right now I am doing this:
locationManager = (LocationManager)
getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_COARSE);
criteria.setPowerRequirement(Criteria.POWER_LOW);
provider = locationManager.getBestProvider(criteria, false);
locationManager.requestLocationUpdates(
provider,
MINIMUM_TIME_BETWEEN_UPDATES,
MINIMUM_DISTANCE_CHANGE_FOR_UPDATES,
this
);
Where min time is 5000 and min distance is 10
Any other recommendations? Like should I just always pick GPS for provider?
Or other strategies?
Thanks in advance!
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