/[projects]/android/TrainInfo/src/dk/thoerup/traininfo/StationLocator.java
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revision 285 by torben, Fri Aug 28 06:34:42 2009 UTC revision 286 by torben, Fri Aug 28 07:21:04 2009 UTC
# Line 21  public class StationLocator implements L Line 21  public class StationLocator implements L
21    
22          StationProvider provider;          StationProvider provider;
23          Location savedLocation = null;          Location savedLocation = null;
24            
25            boolean hasGps;
26    
27          public StationLocator(Context c, Handler h) {          public StationLocator(Context c, Handler h) {
28                  cntx = c;                  cntx = c;
# Line 42  public class StationLocator implements L Line 44  public class StationLocator implements L
44          }          }
45    
46          public void locateStations() {          public void locateStations() {
47                  //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                  hasGps = false;
48    
49                  locManager = (LocationManager) cntx.getSystemService(Context.LOCATION_SERVICE);                  locManager = (LocationManager) cntx.getSystemService(Context.LOCATION_SERVICE);
50                  /*//testcode  
                 List<String> provs = locManager.getAllProviders();  
                 for (String p  : provs) {  
                         Log.e("Provider", p);  
                 }  
                 provs = locManager.getProviders(true);  
                 for (String p  : provs) {  
                         Log.e("ActiveProvider", p);  
                 }  
                 */  
51                  Criteria c = new Criteria();                  Criteria c = new Criteria();
52                  c.setAccuracy(Criteria.ACCURACY_FINE);                  c.setAccuracy(Criteria.ACCURACY_FINE);
53                  String bestProv = locManager.getBestProvider(c, true);                  List<String> providers = locManager.getProviders(true);
                 Log.i("BestProvider", ""+bestProv);  
54                                    
55                    
56                  if (bestProv != null) {                  if (providers.size() > 0) {
57                          locManager.requestLocationUpdates(bestProv, 0, 0, this);                          for(String provider : providers) {
58                                    Log.i("Provider", ""+provider);
59                                    if (provider.equalsIgnoreCase("gps"))
60                                            hasGps = true;
61                                    locManager.requestLocationUpdates(provider, 0, 0, this);
62                            }
63                  } else {                  } else {
64                          // message that no suitable provider was found                          // message that no suitable provider was found
65                          hndl.sendEmptyMessage(TrainInfoList.NOPROVIDER);                          hndl.sendEmptyMessage(TrainInfoList.NOPROVIDER);
# Line 72  public class StationLocator implements L Line 69  public class StationLocator implements L
69          public void onLocationChanged(Location location) {          public void onLocationChanged(Location location) {
70                  Log.i("Location", "Got location fix " + location.getLatitude() + ", " + location.getLongitude() + " accuracy=" + location.getAccuracy() + " provider=" +location.getProvider());                  Log.i("Location", "Got location fix " + location.getLatitude() + ", " + location.getLongitude() + " accuracy=" + location.getAccuracy() + " provider=" +location.getProvider());
71    
72                  savedLocation = new Location(location); //save a copy                  if (savedLocation == null || location.getAccuracy() < savedLocation.getAccuracy())
73                            savedLocation = new Location(location); //save a copy
74                                    
75                  if (location.getProvider().equals("gps") && location.getAccuracy() > 100) //if we have a gps provider lets wait for a more precise fix                  if (hasGps) {
76                          return;                          if (!location.getProvider().equals("gps")) {
77                                    return; // at least give the gps a chance
78                            } else if (location.getAccuracy() > 100) {
79                                    return; //if we have a gps provider lets wait for a more precise fix
80                            }
81    
82                    }
83    
84                  locManager.removeUpdates(this);                  locManager.removeUpdates(this);
85                  hndl.sendEmptyMessage(TrainInfoList.GOTLOCATION);                  hndl.sendEmptyMessage(TrainInfoList.GOTLOCATION);
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