so - GPS it is. Tell them to bring a spare battery. On Tuesday, March 6, 2012 5:45:20 PM UTC-5, RedBullet wrote: > > Generally out in the country. > > On Tuesday, March 6, 2012 5:07:36 PM UTC-5, lbendlin wrote: >> >> you are not saying where they are riding the bike. Network location >> services work MUCH better in densely populated areas than out in the >> country. >> >> On Tuesday, March 6, 2012 1:16:00 PM UTC-5, RedBullet wrote: >>> >>> 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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