CODEWITHSUNDEEP
androidlocationgeocoding
adrian
adrian

Reputation: 4594

to find the address of the beginning and of the end of a route

I'm receving GPS data via DDMS using a KML file in android and I'm using the following code:

public class screen4 extends MapActivity 

{    


List<GeoPoint> geoPointsArray = new ArrayList<GeoPoint>();

    @Override
    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.screen4); 

        lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE);    

        locationListener = new MyLocationListener();


        mapView = (MapView) findViewById(R.id.mapview1);

        mapView.setBuiltInZoomControls(true);

        mc = mapView.getController();

       lm.requestLocationUpdates(LocationManager.GPS_PROVIDER,0,0,locationListener);

   }


private class MyLocationListener implements LocationListener

    {

        @Override
        public void onLocationChanged(Location loc) {

            if (loc != null) {                         

                latitude=(int)(loc.getLatitude()* 1E6);

                longitude=(int)(loc.getLongitude()* 1E6);


           GeoPoint p = new GeoPoint(latitude,longitude);
        geoPointsArray.add(p);

      mc.animateTo(p);

              mc.setZoom(17);     

                mapView.invalidate();

                mapView.setSatellite(true);
           }

        }

In onLocationChanged() I retrieve the GPS data and store it in GeoPoint p, what I want to do is to find out the address of the first point(latitude,longitude) and of the last point whose GPS data I retrieve.

My question is: Does my program stay blocked at this line:

lm.requestLocationUpdates(LocationManager.GPS_PROVIDER,0,0,locationListener);

until all the GPS data is retrieved?

In this way I can apply Geocoder for the geoPointsArray(0) and after that for geoPointsArray(maxSize).

My problem is that I don't know how this program works,so I can't really figure out when all my GPS data is retrieved(my geoPointsArray is full) and so where to apply Geocoder.

Question2:

In the moment I start to receive location updates I want to connect to a remote server and send all the GPS data that is stored in geoPointArray to the server. Any idea of where should I start my thread? I have a bunch of code lines but I guess no one is going to read that!

Upvotes: 0

Views: 121

Answers (1)

CommonsWare
CommonsWare

Reputation: 1007534

My question is:does my program stays blocked at this line: lm.requestLocationUpdates(LocationManager.GPS_PROVIDER,0,0,locationListener); until all the GPS data is retrieved????

No. Location updates are asynchronous.

Upvotes: 1

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