I want to route between multiple geopots in android

Possible duplicate:
Is there an API for navigating Google Maps on Android?

Recently, I started developing Android as a hobby and was looking for an application that could find and track users' positions using Google Maps.

After the application has a GPS lock, the application can track their movements by plotting a route using an overlay class.

I saw similar apps like Mytracks that are open source, but they are too complicated for me right now.

He has my code below without import.

What I'm trying to do is create an array of geotomes. Each time you change the location, new geo-information is created. Then I try to use a for loop to iterate through each geo-information and find the path between them.

Ideally, I would like to create an application similar to this image

public class Tracking extends MapActivity implements LocationListener {

   LocationManager locman;
   LocationListener loclis;
   Location Location;
   private MapView map;

   List<GeoPoint> geoPointsArray = new ArrayList<GeoPoint>();
   private MapController controller;
   String provider = LocationManager.GPS_PROVIDER;
   double lat;
   double lon;


   @Override
      public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.map);
         initMapView();
         initMyLocation();
         locman = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
         //locman.requestLocationUpdates(provider,60000, 100,loclis);
         //Location = locman.getLastKnownLocation(provider);

      }
   /** Find and initialize the map view. */
      private void initMapView() {
         map = (MapView) findViewById(R.id.map);
         controller = map.getController();
         map.setSatellite(false);
         map.setBuiltInZoomControls(true);
      }

      /** Find Current Position on Map. */
      private void initMyLocation() {
         final MyLocationOverlay overlay = new MyLocationOverlay(this, map);
         overlay.enableMyLocation();
         overlay.enableCompass(); // does not work in emulator
         overlay.runOnFirstFix(new Runnable() {
            public void run() {
               // Zoom in to current location
               controller.setZoom(24);
               controller.animateTo(overlay.getMyLocation());
            }
         });
         map.getOverlays().add(overlay);
      }

   @Override
   public void onLocationChanged(Location location) {
      if (Location != null){
         lat = Location.getLatitude();
          lon = Location.getLongitude();
          GeoPoint New_geopoint = new GeoPoint((int)(lat*1e6),(int)(lon*1e6));
          controller.animateTo(New_geopoint);

      }

   }
   class MyOverlay extends Overlay{
       public MyOverlay(){
       }   
       public void draw(Canvas canvas, MapView mapv, boolean shadow){
       super.draw(canvas, mapv, shadow);

        Projection projection = map.getProjection();
        Path p = new Path();
        for (int i = 0; i < geoPointsArray.size(); i++) {
        if (i == geoPointsArray.size() - 1) {
            break;
        }
        Point from = new Point();
        Point to = new Point();
        projection.toPixels(geoPointsArray.get(i), from);
        projection.toPixels(geoPointsArray.get(i + 1), to);
        p.moveTo(from.x, from.y);
        p.lineTo(to.x, to.y);
        }
        Paint mPaint = new Paint();
        mPaint.setStyle(Style.STROKE);
        mPaint.setColor(0xFFFF0000);
        mPaint.setAntiAlias(true);
        canvas.drawPath(p, mPaint);
        super.draw(canvas, map, shadow);
    }   
}

   @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

   }
   @Override
   protected boolean isRouteDisplayed() {
      // TODO Auto-generated method stub
      return false;
   }}