Hi friends!

In my application I tried to search diff map location using diff lat and long. First time the application show the map but wen i change the lat long and try to invalidate the mapview using diff lat long, map is not refreshed.

Below is my code please have a look and suggest accordingly:

//Source code

protected void onCreate(Bundle icicle) {
        // TODO Auto-generated method stub
        super.onCreate(icicle);
        setContentView(R.layout.main);
        infoTextView = (TextView) findViewById(R.id.infoTextView);

        // Finding Current Location
    locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
    locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
                1l, 1l, this);
    Location location = locationManager.getLastKnownLocation("gps");


    // mock location by hard-code if DDMS has not sent a fake loc to the emulator.
        if (location == null) {
            lat = 13.6972 * 1E6;
            lng = 100.5150 * 1E6;
    } else { // get real location if can retrieve the location sent by DDMS or GPS
            lat = location.getLatitude() * 1E6;
            lng = location.getLongitude() * 1E6;
        }
        setGPSLocation(lat, lng);
    }

//This is the function which I am calling with different lat and long

public void setGPSLocation(Double lati, Double longi)
    {
        lat = lati;
        lng = longi;
        System.out.println("Latitude :"+ lat +" Longitude :"+lng);

        // Prepare text being shown
        String tmpLoc = LOC_INFO_TEMPLATE;
        tmpLoc = tmpLoc.replace("lg", String.valueOf(lng));
        tmpLoc = tmpLoc.replace("lt", String.valueOf(lat));
        infoTextView.setText(tmpLoc);

        // Setup Zoom/Hide Buttons
        linearLayout = (LinearLayout) findViewById(R.id.zoomview);
        mapView = (MapView) findViewById(R.id.mapview);  
        mapView.invalidate();

        mapView.setBuiltInZoomControls(true);                           //new by me
        mapView.setSatellite(true); // Set satellite view
        mZoom = (ZoomControls) mapView.getZoomControls();
        linearLayout.addView(mZoom);

        // Setup Marker

        mapOverlays = mapView.getOverlays();
        drawable = this.getResources().getDrawable(R.drawable.marker);
        itemizedOverlay = new MyItemizedOverlay(drawable);
        GeoPoint point = new GeoPoint(lat.intValue(), lng.intValue());
        OverlayItem overlayitem = new OverlayItem(point, "", "");
        itemizedOverlay.addOverlay(overlayitem);
        mapOverlays.add(itemizedOverlay);

        // Centralize Current Location
        myMapController = mapView.getController();
        myMapController.setZoom(DEFAULT_ZOOM_NUM);
        centerlizeCurrentLocation(point);   



    }

Any suggest is truly appreciable.