[android-developers] Adding markers with different drawables on google map in android

Hi,
I am trying to plot some markers on a google map.There are 2 different marker drawables, the orange one is for the user's location and green ones are for all other points.I have followed this source code from CommonsWare.Here is my ItemizedOverlay and OverlayItem class:

       class DoItemizedOverlay extends ItemizedOverlay<CustomOverlayItem> {

        private ArrayList<CustomOverlayItem> items = new ArrayList<CustomOverlayItem>();
        Context mcontext;
        public DoItemizedOverlay(Context context,ArrayList<OverlayPoint> overlays)
        {
            super(null);
            mcontext=context;
            // TODO Auto-generated constructor stub
           
            for(OverlayPoint p:overlays)
            {
                CustomOverlayItem item;
                if(p.src)
                {
                    item=new CustomOverlayItem(p.p,p.name, p.snippet, getMarker(R.drawable.src_marker), true);
                }
                else
                {
                    item=new CustomOverlayItem(p.p, p.name, p.snippet, getMarker(R.drawable.marker), false);
                }
                items.add(item);
                //populate();
            }
            Log.d("MAPI", String.valueOf(items.size()));
            populate();
        }

       
       
         @Override
        public void draw(Canvas canvas, MapView mapView,
                          boolean shadow) {
          super.draw(canvas, mapView, false);
         
        }
       
        @Override
        protected CustomOverlayItem createItem(int i)
        {
          return items.get(i);
        }

        @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);
            }
    }

   class CustomOverlayItem extends OverlayItem {
        Drawable marker=null;
        boolean src;
       
        CustomOverlayItem(GeoPoint pt, String name, String snippet,
                   Drawable marker,boolean s) {
          super(pt, name, snippet);
         
          this.marker=marker;
          this.src=s;
        }
       
        @Override
        public Drawable getMarker(int stateBitset) {
         
          setState(this.marker, stateBitset);
          return(this.marker);
        }
      }

    class OverlayPoint{
        GeoPoint p;
        String name,snippet;
        boolean src;
        
        public OverlayPoint(GeoPoint pn,String nm,String sn,boolean s) {
            // TODO Auto-generated constructor stub
            p=pn;
            name=nm;
            snippet=sn;
            src=s;
        }
    }
 

I am adding the Overlay this way

    DoItemizedOverlay sourcemarker=new DoItemizedOverlay(ChildcareHost.mContext,OPs);
                    mapView.getOverlays().add(sourcemarker);
                    mapView.setBuiltInZoomControls(true);
                    mapView.setStreetView(true);
                    mapView.invalidate();
                    mapView.getController().zoomToSpan(sourcemarker.getLatSpanE6(), sourcemarker.getLonSpanE6());
                    mapView.getController().animateTo(src);

 

But when I run the app on an emulator I am only seeing 2 markers,the 1st and the last one added while the log shows that there are 20 items in the items ArrayList.What am I doing wrong? Please Help!!

--
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers+unsubscribe@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en