OverlayItem not displaying markers!

I have the following code and the markers are not appearing on the map at all!

private class SitesOverlay extends ItemizedOverlay<pfOverlayItem> {

    private List<pfOverlayItem> items=new ArrayList<pfOverlayItem>();
    //private   PopupPanel panel=new PopupPanel(R.layout.popup);

    public SitesOverlay() {
        super(null);

        items = mainOverlayArray;

        populate();

    }

    @Override
    protected pfOverlayItem createItem(int i) {
        return(items.get(i));
    }

    @Override
    public void draw(Canvas canvas, MapView mapView,
                                        boolean shadow) {
        super.draw(canvas, mapView, shadow);

    }


    @Override
    public int size() {

        return(items.size());

    }



    private Drawable getMarker(int resource) {
        Drawable marker=getResources().getDrawable(resource);

        marker.setBounds(0, 0, marker.getIntrinsicWidth(),
                                            marker.getIntrinsicHeight());
        boundCenter(marker);

        return(marker);
    }
}

mainOverlayArray is full of pfOverlayItem's and the code for that class is

public class pfOverlayItem extends OverlayItem {
private String coolText;

public String getcoolText() {
    return coolText;
}

public void setcoolText(String coolText) {
    this.coolText = coolText;
}

public pfOverlayItem(GeoPoint point, String title, String snippet) {
    super(point, title, snippet);
    // TODO Auto-generated constructor stub
}

}

I also set the marker outside of this after processing an XML file...

 ArrayList<pfOverlayItem> overArray = myXMLHandler.getOverlayArray();
                mainOverlayArray = overArray;
                pfOverlayItem tempOver = null;
                开发者_C百科Drawable marker = getResources().getDrawable(R.drawable.icon);
                for (int i = 0; i < mainOverlayArray.size(); i++) {
                    tempOver = mainOverlayArray.get(i);
                    tempOver.setMarker(marker);
                }

                sites=new SitesOverlay();
                myMapView.getOverlays().add(sites);
                myMapView.invalidate(); [/code]

It looks as though you're starting from one of my many sample Google Map applications. Your code as shown here is incomplete (e.g., according to the code here, you never create any OverlayItem instances).

My recommendation is you roll back to one of the samples I link to above and start modifying from there, or you start trying to figure out which of your methods are getting called and which are not.