[android-developers] Connecting 4 Geopoints

[Naveen]

Hello All,


I am having 4 static Geopoints, I am able to mark them on the Map and
also i am able to draw line between them.

Now i am trying to animate the line while drawing between 2 Geopoints,
i just want to show them some kind of animation while drawing line ..
is it possible to do ?? or i can call some delay function ??

Please help me with this ..

My function

public class HelloMapView extends MapActivity {
    /** Called when the activity is first created. */
        LinearLayout linearLayout;
        MapView mapView;
    MapController mc;
    GeoPoint p,p1,p2,p3;

    class MapOverlay extends com.google.android.maps.Overlay
    {
        @Override
        public boolean draw(Canvas canvas, MapView mapView,
        boolean shadow, long when)
        {
            super.draw(canvas, mapView, shadow);

            //---translate the GeoPoint to screen pixels---
            Point screenPts = new Point();
            mapView.getProjection().toPixels(p, screenPts);

            //---add the marker---
            Bitmap bmp = BitmapFactory.decodeResource(
                getResources(), R.drawable.a);
            canvas.drawBitmap(bmp, screenPts.x, screenPts.y-35,
null);

            //Coordinates 2

          //---translate the GeoPoint to screen pixels---
            Point screenPts1 = new Point();
            mapView.getProjection().toPixels(p1, screenPts1);

            //---add the marker---
            Bitmap bmp1 = BitmapFactory.decodeResource(
                getResources(), R.drawable.b);
            canvas.drawBitmap(bmp1, screenPts1.x, screenPts1.y-35,
null);

            //Coordinates 3

           //---translate the GeoPoint to screen pixels---
            Point screenPts2 = new Point();
            mapView.getProjection().toPixels(p2, screenPts2);

            //---add the marker---
            Bitmap bmp2 = BitmapFactory.decodeResource(
                getResources(), R.drawable.c);
            canvas.drawBitmap(bmp2, screenPts2.x, screenPts2.y-35,
null);


            //Coordinates 4

            //---translate the GeoPoint to screen pixels---
             Point screenPts3 = new Point();
             mapView.getProjection().toPixels(p3, screenPts3);

             //---add the marker---
             Bitmap bmp3 = BitmapFactory.decodeResource(
                 getResources(), R.drawable.dgreen);
             canvas.drawBitmap(bmp3, screenPts3.x, screenPts3.y-35,
null);



            //----------- Start--------------//

            Paint mPaint = new Paint();
            mPaint.setStyle(Style.FILL);
            mPaint.setStrokeWidth(3);
            mPaint.setColor(Color.BLUE);
            mPaint.setAntiAlias(true);
            //canvas.drawPath(path,mPaint);
            super.draw(canvas, mapView, shadow);
            canvas.drawLine(screenPts.x, screenPts.y, screenPts1.x,
screenPts1.y, mPaint);
            canvas.drawLine(screenPts1.x, screenPts1.y, screenPts2.x,
screenPts2.y, mPaint);
            canvas.drawLine(screenPts2.x, screenPts2.y, screenPts3.x,
screenPts3.y, mPaint);
            return true;
        }
    }


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mapView = (MapView) findViewById(R.id.mapview);

        mapView.setBuiltInZoomControls(true);

        mapView = (MapView) findViewById(R.id.mapview);



        mapView.displayZoomControls(true);
        mc = mapView.getController();
        String coordinates[] = {"12.958998", "77.658998"};
        double lat = Double.parseDouble(coordinates[0]);
        double lng = Double.parseDouble(coordinates[1]);

        p = new GeoPoint(
            (int) (lat * 1E6),
            (int) (lng * 1E6));


        String coordinates1[] = {"12.95967","77.64918"};
        double lat1 = Double.parseDouble(coordinates1[0]);
        double lng1 = Double.parseDouble(coordinates1[1]);

        p1 = new GeoPoint(
            (int) (lat1 * 1E6),
            (int) (lng1 * 1E6));

        //For geopoint point 3

        String coordinates2[] = {"12.96052","77.64171"};
        double lat2 = Double.parseDouble(coordinates2[0]);
        double lng2 = Double.parseDouble(coordinates2[1]);

        p2 = new GeoPoint(
            (int) (lat2 * 1E6),
            (int) (lng2 * 1E6));

        //For geopoint point 4
        String coordinates3[] = {"12.96721","77.64141"};
        double lat3 = Double.parseDouble(coordinates3[0]);
        double lng3 = Double.parseDouble(coordinates3[1]);

        p3 = new GeoPoint(
            (int) (lat3 * 1E6),
            (int) (lng3 * 1E6));



        mc.animateTo(p);
        mc.animateTo(p1);
        mc.animateTo(p2);
        mc.animateTo(p3);
        mc.setZoom(16);

      //---Add a location marker---
        MapOverlay mapOverlay = new MapOverlay();
        List<Overlay> listOfOverlays = mapView.getOverlays();
        listOfOverlays.clear();
        listOfOverlays.add(mapOverlay);

        mapView.invalidate();


    }

    @Override
    protected boolean isRouteDisplayed() {
        return false;
    }

}

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