--- android/TrainInfo/src/dk/thoerup/traininfo/StationLocator.java 2009/08/10 16:58:22 253 +++ android/TrainInfo/src/dk/thoerup/traininfo/LocationLookup.java 2009/10/27 13:40:15 474 @@ -1,116 +1,102 @@ package dk.thoerup.traininfo; -import java.util.ArrayList; import java.util.List; -import org.json.JSONArray; -import org.json.JSONObject; - import android.content.Context; -import android.location.Criteria; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; -import android.location.LocationProvider; import android.os.Bundle; import android.os.Handler; import android.util.Log; -import dk.thoerup.traininfo.provider.ProviderFactory; -import dk.thoerup.traininfo.provider.StationProvider; -import dk.thoerup.traininfo.util.DownloadUtil; -public class StationLocator implements LocationListener{ + +public class LocationLookup implements LocationListener{ LocationManager locManager; Context cntx; Handler hndl; - List stationList = new ArrayList(); - - Location savedLocation = null; + + boolean isSearching = false; + boolean hasGps; - public StationLocator(Context c, Handler h) { + public LocationLookup(Context c, Handler h) { cntx = c; hndl = h; } - public List getStations() { - return stationList; + + public boolean hasLocation() { + return savedLocation != null; } - public void abortLocationListener() { - locManager.removeUpdates(this); + public Location getLocation() + { + return savedLocation; } public void locateStations() { - //http://www.google.com/uds/GlocalSearch?callback=google.search.LocalSearch.RawCompletion&context=1&lstkp=0&rsz=small&hl=en&source=gsc&gss=.com&sig=fadf0e8d483d0f70bea11d5905010a16&q=Train%20station&near=56.377424%2C9.656695&key=ABQIAAAA1XbMiDxx_BTCY2_FkPh06RRaGTYH6UMl8mADNa0YKuWNNa8VNxQEerTAUcfkyrr6OwBovxn7TDAH5Q&v=1.0&nocache=1249640467498 - - locManager = (LocationManager) cntx.getSystemService(Context.LOCATION_SERVICE); - /*//testcode - List provs = locManager.getAllProviders(); - for (String p : provs) { - Log.e("Provider", p); - } - provs = locManager.getProviders(true); - for (String p : provs) { - Log.e("ActiveProvider", p); - } - */ - Criteria c = new Criteria(); - c.setAccuracy(Criteria.ACCURACY_FINE); - String bestProv = locManager.getBestProvider(c, true); - Log.i("BestProvider", ""+bestProv); + isSearching = true; + + hasGps = false; + locManager = (LocationManager) cntx.getSystemService(Context.LOCATION_SERVICE); - if (bestProv != null) { - savedLocation = locManager.getLastKnownLocation(bestProv); - locManager.requestLocationUpdates(bestProv, 0, 0, this); + List providers = locManager.getProviders(true); + + if (providers.size() > 0) { + for(String provider : providers) { + Log.i("Provider", ""+provider); + if (provider.equalsIgnoreCase("gps")) + hasGps = true; + locManager.requestLocationUpdates(provider, 0, 0, this); + } } else { // message that no suitable provider was found - hndl.sendEmptyMessage(TrainInfoList.NOPROVIDER); + hndl.sendEmptyMessage(StationList.NOPROVIDER); } } @Override public void onLocationChanged(Location location) { + if (isSearching == false) + return; + Log.i("Location", "Got location fix " + location.getLatitude() + ", " + location.getLongitude() + " accuracy=" + location.getAccuracy() + " provider=" +location.getProvider()); + - savedLocation = new Location(location); //save a copy + if (savedLocation == null || location.getAccuracy() < savedLocation.getAccuracy()) + savedLocation = new Location(location); //save a copy - if (location.getProvider().equals("gps") && location.getAccuracy() > 100) //if we have a gps provider lets wait for a more precise fix - return; + if (hasGps) { + if (!location.getProvider().equals("gps")) { + return; // at least give the gps a chance + } else if (location.getAccuracy() > 256) { + return; //if we have a gps provider lets wait for a more precise fix + } - locManager.removeUpdates(this); - hndl.sendEmptyMessage(TrainInfoList.GOTLOCATION); - } - - public void findNearestStations() { - findNearestStations(savedLocation); + } + stopSearch(); + hndl.sendEmptyMessage(StationList.GOTLOCATION); } - public void findNearestStations(Location location) { - StationProvider prov = ProviderFactory.getStationProvider(); - prov.lookupStations(location); - this.stationList = prov.getStations(); - - if (stationList.size() > 0) - hndl.sendEmptyMessage(TrainInfoList.GOTSTATIONLIST); - else - hndl.sendEmptyMessage(TrainInfoList.LOOKUPSTATIONFAILED); + public void stopSearch() + { + if (isSearching) { + isSearching = false; + locManager.removeUpdates(this); + } } @Override public void onProviderDisabled(String provider) { - // TODO Auto-generated method stub - } @Override public void onProviderEnabled(String provider) { - // TODO Auto-generated method stub - } @@ -119,32 +105,4 @@ // TODO Auto-generated method stub } - - - public static void injectMockLocation(Context cntx) { - Location odder = new Location("gps2"); - odder.setLatitude(55.976632); - odder.setLongitude(10.16407); - - Location kbh = new Location("gps2"); //Christiansborg 55.675092,12.578573 - kbh.setLatitude(55.675092); - kbh.setLongitude(12.578573); - - Location bjbro = new Location("gps2"); - bjbro.setLatitude(56.380745); - bjbro.setLongitude(9.655609); - - - LocationManager lm = (LocationManager) cntx.getSystemService(Context.LOCATION_SERVICE); - if (lm.getProvider("gps2") == null) - lm.addTestProvider("gps2", false, true, true, false, false, false, false, 0, Criteria.ACCURACY_FINE ); - lm.setTestProviderEnabled("gps2", true); - lm.setTestProviderLocation("gps2", kbh); - } - - public static void removeMockLocation(Context cntx) { - LocationManager lm = (LocationManager) cntx.getSystemService(Context.LOCATION_SERVICE); - if (lm.getProvider("gps2") != null) - lm.removeTestProvider("gps2"); - } }