How to change marker icon what it was tapped?

Question

In our project we use google maps v2, and I need to find a way to change pin icon after the pin was tapped. Also I need to return initial icon for this pin when another pin will be tapped. So now we have something like this:

public ClusterManager.OnClusterItemClickListener<OurClusterItem> mClusterItemClickListener = new ClusterManager.OnClusterItemClickListener<OurClusterItem>() {

    @Override
    public boolean onClusterItemClick(OurClusterItem item) {
        // Some actions here
        return true;
    }
};

and then we set this listener to map:

ClusterManager mClusterManager = new ClusterManager<OurClusterItem>(getActivity(), getMap());
mClusterManager.setOnClusterItemClickListener(mClusterItemClickListener);
googleMap.setOnMarkerClickListener(mClusterManager);

So, can someone offer solution for this? Thanks!

Answer 1

So, I found solution for it - maybe this also will helps to someone.

So, at first, we need to use our custom renderer (inherited from DefaultClusterRenderer). DefaultClusterRenderer has his own cache that contains pairs of ClusterItem and corresponding Marker:

public MarkerCache<T> mMarkerCache = new MarkerCache<T>();

so I wrote the next method in our CustomClusterRenderer

public Marker getMarker(OurClusterItem clusterItem) {
    return mMarkerCache.get(clusterItem);
}

After it, I've added to our fragment 2 variables:

private Marker mCurrentSelectedMarker;
private ClusterStore mCurrentSelectedClusterItem;

and change implementation for ClusterItemClickListener:

public ClusterManager.OnClusterItemClickListener<OurClusterItem> mClusterItemClickListener = new ClusterManager.OnClusterItemClickListener<OurClusterItem>() {

    @Override
    public boolean onClusterItemClick(ClusterStore item) {
        // return to previous marker non-selected icon
        if (mCurrentSelectedMarker != null) {
            mCurrentSelectedMarker.setIcon(BitmapDescriptorFactory.fromResource(mCurrentSelectedClusterItem.getIconResourceId()));
        }
        Marker marker = mCustomRenderer.getMarker(item);
        if (marker != null) {
            mCurrentSelectedMarker = marker;
            mCurrentSelectedClusterItem = item;
            marker.setIcon(BitmapDescriptorFactory.fromResource(item.getIconSelResourceId()));
        }
        // some other code
        return true;
    }
};

That's all, and it works like a charm.