Re: [androidbrasil-dev] KM/h via GPS

  Achei isto no google     http://stackoverflow.com/questions/4811920/why-getspeed-always-return-0-on-android  

    String provider = initLocManager();
      if (provider == null)
          return false;
      LocationListener locListener = new LocationListener() {
          public void onLocationChanged(Location location) {
              updateWithNewLocation(location, interval, startId);
              Log.i(getString(R.string.logging_tag), "speed =" + location.getSpeed());
          }
  
        public void onProviderDisabled(String provider){
              updateWithNewLocation(null, interval, startId);
          }
  
        public void onProviderEnabled(String provider) {}
          public void onStatusChanged(String provider, int status, Bundle extras) {}
      };
  
    _locManager.requestLocationUpdates(provider, interval,  DEFAULT_GPS_MIN_DISTANCE, locListener);
  

    private String initLocManager() {
      String context = Context.LOCATION_SERVICE;
      _locManager = (LocationManager) getSystemService(context);
  
    Criteria criteria = new Criteria();
      criteria.setAccuracy(Criteria.ACCURACY_FINE);
      criteria.setAltitudeRequired(false);
      criteria.setBearingRequired(true);
      criteria.setSpeedRequired(true);
      criteria.setCostAllowed(true);
      //criteria.setPowerRequirement(Criteria.POWER_LOW);
      String provider = _locManager.getBestProvider(criteria, true);
  
    if (provider == null || provider.equals("")) {
          displayGPSNotEnabledWarning(this);
          return null;
      }
  
    return provider;