对Android中的Overlay draw的理解(2)

@Override   public void onLocationChanged(Location location) {       // TODO Auto-generated method stub                 if (null!=location) {           pointNum++;       myPath=new PathOverlay();                      List<Overlay> pointOverlays=               mMap.getOverlays();//           pointOverlays.clear();           pointOverlays.add(myPath);           addPointFromLac(location);           updateWithNewLocation(location,point);       }                 }  

onLocationChanged  

onLocationChanged