위치기반으로 어플 공부하고 있는데요

LocationListener mLocationListener;
 MapView mapView;
 MapController mc;
 List<Overlay> overlay;
 
 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.frame_third_main);
     // TODO Auto-generated method stub
     mapView=(MapView)findViewById(R.id.mapview);
     mapView.setBuiltInZoomControls(true);
     mapView.setSatellite(false);
    
     LocationManager lm =(LocationManager)getSystemService(Context.LOCATION_SERVICE);
     mc = mapView.getController();
    
     mLocationListener = new LocationListener(){

   @Override
   public void onLocationChanged(Location location) {
    // TODO Auto-generated method stub
    
    if(location != null){
     
     Toast.makeText(getBaseContext(), location.getLatitude()+","+location.getLongitude(), Toast.LENGTH_SHORT).show();
     
     GeoPoint gp = new GeoPoint((int)(location.getLatitude()*1000000), (int)(location.getLongitude()*1000000));
     mc.animateTo(gp);
     mc.setZoom(19);
     
     Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.dot);
     bitmap = Bitmap.createScaledBitmap(bitmap, 20, 20, false);
     Drawable drawable = new BitmapDrawable(bitmap);
     
     Healthier_frame_third_Overlay h_overlay = new Healthier_frame_third_Overlay(drawable);
     OverlayItem overlayitem = new OverlayItem(gp, "", "");
     h_overlay.addOverlayItem(overlayitem);
     overlay = mapView.getOverlays();
     overlay.add(h_overlay);
     
    }
   }

   @Override
   public void onProviderDisabled(String provider) {
    // TODO Auto-generated method stub
    
   }

   @Override
   public void onProviderEnabled(String provider) {
    // TODO Auto-generated method stub
    
   }

   @Override
   public void onStatusChanged(String provider, int status,
     Bundle extras) {
    // TODO Auto-generated method stub
    
   }
      
     };
     lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2, 3, mLocationListener);
 }

 @Override
 protected boolean isRouteDisplayed() {
  // TODO Auto-generated method stub
  return false;
 }
 public void onDestroy(){
  super.onDestroy();
  LocationManager lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
  lm.removeUpdates(mLocationListener);
 }

이거와 OVERLAY 로 공부중인데요

제가 만든 거는 건물안에서 제 위치정보를 받지 못하는데요

갤스 기본 내장 지도에는

제 위치를 잘 잡아네네요..

어떻게 해야 건물안에서도 위치를 잡을수있을까요..

이 게시물을