Android Google Map自定义标记

Question

Am using custom markers for my google map. All the marker images are getting from server and with help of lazy loading i can display . The issue is that if the maker is set before image downloading completed it never update the map with new image.

Any help would be appreciated

public class ROverViewRender extends DefaultClusterRenderer<RItem> {

    private IconGenerator mIconGenerator;
    private IconGenerator mClusterIconGenerator;
    private RImageView mImageView;
    private RImageView mImageVieStar;
    private ImageView mClusterImageView;
    private Context context;
    private ClusterManager<RItem> mClusterManager;
    private ImageLoader imageLoader;

    public ROverViewRender(Context context, GoogleMap map, ClusterManager<RItem> clusterManager) {
        super(context, map, clusterManager);

        this.mClusterManager=clusterManager;
        Activity activity = (Activity) context;
        this.context=context;
        mClusterIconGenerator=new IconGenerator(context);
        View clustorIcon = activity.getLayoutInflater().inflate(R.layout.clustor_icon, null);
        mClusterIconGenerator.setContentView(clustorIcon);
        mIconGenerator=new IconGenerator(context);
        View markerIcon = activity.getLayoutInflater().inflate(R.layout.marker_icon, null);
        mIconGenerator.setContentView(markerIcon);
        mImageView=(RImageView)markerIcon.findViewById(R.id.marker_image);
        mImageVieStar=(RImageView)markerIcon.findViewById(R.id.marker_route_rating);
        mClusterImageView=(NetworkImageView)clustorIcon.findViewById(R.id.cluster_image);

        imageLoader=VolleySingleton.getInstance(context).getImageLoader();;

    }

    @Override
    protected void onBeforeClusterItemRendered(final RItem item, MarkerOptions markerOptions) {

        setMarkerImage(item,markerOptions);
         Bitmap icon = mIconGenerator.makeIcon();
         markerOptions.icon(BitmapDescriptorFactory.fromBitmap(icon));


    }

    @Override
    protected void onBeforeClusterRendered(Cluster<RItem> cluster, MarkerOptions markerOptions) {
         Drawable drawable =context.getResources().getDrawable(R.drawable.ic_launcher);

        mClusterImageView.setImageDrawable(drawable);
         Bitmap icon = mClusterIconGenerator.makeIcon(String.valueOf(cluster.getSize()));
         markerOptions.icon(BitmapDescriptorFactory.fromBitmap(icon));
    }

     @Override
     protected boolean shouldRenderAsCluster(Cluster cluster) {
         // Always render clusters.
         return cluster.getSize() > 1;
     }
     @Override
    protected void onClusterItemRendered(RItem clusterItem, Marker marker) {
         RLog.e("Invoked the ....>>>>>");
    //   setMarkerImage(clusterItem);

    }

     private void setMarkerImage(RItem item,final MarkerOptions markerOptions){
         RLog.e("Image setter invoked..."+item.getMarkerUrl());
         mImageView.setImageUrl(item.getMarkerUrl(), imageLoader);
         imageLoader.get(item.getMarkerUrl(), new ImageListener() {

                public void onErrorResponse(VolleyError error) {
                 //   imageView.setImageResource(R.drawable.icon_error); // set an error image if the download fails
                }

                public void onResponse(ImageContainer response, boolean arg1) {
                    RLog.e("Image download completed...");
                    if (response.getBitmap() != null) {
                        mImageView.setImageBitmap(response.getBitmap());


                    } 
                }
            });
     }
}

Answer 1

Issue Fixed. The google map marker have setIcon method which help us to update the icon. so whenever i got the callback from image downloader i will update it through setIcon method . So far no issues ,working perfectly fine.