Hi,

I am experiencing an unusual error using ItemizedOverlay in Android.

I am creating a GPS tracking device that plots a route between waypoints stored in a database.

When I provide the first two sets of longitude and latitude points through the emulator in Eclipse, it draws a red line just how I want it, but if I send another GPS point, it animates to the point, but does not draw a line from the last point.

public class MyOverlay extends ItemizedOverlay {

// private Projection projection; private Paint linePaint; private Vector points;

public MyOverlay(Drawable defaultMarker) {
    super(defaultMarker);
    points = new Vector<GeoPoint>();
    //set colour, stroke width etc.
    linePaint = new Paint();
    linePaint.setARGB(255, 255, 0, 0);
    linePaint.setStrokeWidth(3);
    linePaint.setDither(true);
    linePaint.setStyle(Style.FILL);
    linePaint.setAntiAlias(true);
    linePaint.setStrokeJoin(Paint.Join.ROUND);
    linePaint.setStrokeCap(Paint.Cap.ROUND);

}

public void addPoint(GeoPoint point) {
    points.addElement(point);
}


public void draw(Canvas canvas, MapView view, boolean shadow) {
    int size = points.size();
    Point lastPoint = new Point();
    if(size == 0) return;
    view.getProjection().toPixels(points.get(0), lastPoint);
    Point point = new Point();
    for(int i = 1; i<size; i++){
       view.getProjection().toPixels(points.get(i), point);
        canvas.drawLine(lastPoint.x, lastPoint.y, point.x, point.y, linePaint);
        lastPoint = point;
    }
}

@Override
protected OverlayItem createItem(int arg0) {
    // TODO Auto-generated method stub
    return null;
}

@Override
public int size() {
    // TODO Auto-generated method stub
    return 0;
}

}