How to get one or two meter accuracy for Latitude and longitude values for Current Location
<p>getting lat,lon values one or two buildings away and not getting the exact lat and lon values.I am trying to get atleast one or two meter accuracy for Latitude and longitude values for  Current Location.This is the code </p>

<pre><code>public class GPSLocatorActivity extends MapActivity implements OnClickListener {
MapView mapView = null;
MapController mapController = null;
MyLocationOverlay whereAmI = null;
private Button bdiffaddr, bnext;
MyLocation myLocation;
GeoPoint p = null;
MapController mc = null;
public static LocationManager locManager;
protected ProgressDialog progressDialog;
public static double latitude, longitude;
public String TAG = "GPSLocatorActivity";

protected boolean isLocationDisplayed() {
    return whereAmI.isMyLocationEnabled();
}
protected boolean isRouteDisplayed() {
    return false;
}
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.gpslocation);
    initialiseviews();
    // onclick listeners
    onclicklisteners();
    currentLocLatLong();
    // new GoogleMapAsyncTask().execute();
    GPSLocatorActivity.this.runOnUiThread(new Runnable() {
        public void run() {
            mapView = (MapView) findViewById(R.id.mapView);
            mapView.setBuiltInZoomControls(true);
            mapController = mapView.getController();
            mapController.setZoom(15);
            whereAmI = new MyLocationOverlay(GPSLocatorActivity.this,
                    mapView);
            mapView.getOverlays().add(whereAmI);
            mapView.postInvalidate();
        }
    });

}
public class GoogleMapAsyncTask extends AsyncTask&lt;Void, Void, Void&gt; {
    protected Void doInBackground(Void... voids) {
        mapView = (MapView) findViewById(R.id.mapView);
        mapView.setBuiltInZoomControls(true);
        mapController = mapView.getController();
        mapController.setZoom(15);
        whereAmI = new MyLocationOverlay(GPSLocatorActivity.this, mapView);
        mapView.getOverlays().add(whereAmI);
        mapView.postInvalidate();
        return null;
    }

}
private void currentLocLatLong() {
    locManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
    locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 100L,
            100.0f, locationListener);
    Location location = locManager
            .getLastKnownLocation(LocationManager.GPS_PROVIDER);
    if (location != null) {
        latitude = location.getLatitude();
        longitude = location.getLongitude();
    }
}
private void updateWithNewLocation(Location location) {
        String latLongString = "";
    Log.d("Lat: + latitude + \nLong: + longitude", "Lat:" + latitude
            + "\nLong:" + longitude);
    if (location != null) {
        latitude = location.getLatitude();
        longitude = location.getLongitude();
        latLongString = "Lat:" + latitude + "\nLong:" + longitude;
    } else {
        latLongString = "No location found";
    }
}
public void onResume() {
    super.onResume();
    whereAmI.enableMyLocation();
    whereAmI.runOnFirstFix(new Runnable() {
        public void run() {
            mapController.setCenter(whereAmI.getMyLocation());
        }
    });

}
public void onPause() {
    super.onPause();
    whereAmI.disableMyLocation();
}
public void onLocationChanged(Location location) {
    if (location != null) {
        latitude = location.getLatitude();
        longitude = location.getLongitude();
        @SuppressWarnings("unused")
        String currentLocation = "Lat: " + latitude + " Lng: " + longitude;
        // txted.setText(currentLocation);
        p = new GeoPoint((int) latitude * 1000000,
                (int) longitude * 1000000);
        mc.animateTo(p);
    }
}
public final LocationListener locationListener = new LocationListener() {
    public void onLocationChanged(Location location) {
        updateWithNewLocation(location);
    }
    public void onProviderDisabled(String provider) {
        updateWithNewLocation(null);
    }
    public void onProviderEnabled(String provider) {
    }
    public void onStatusChanged(String provider, int status, Bundle extras) {
    }
};

please help if anyone has idea how to get the accuracy upto one or two meter distance.
</code></pre>
