title: custom icon of cluster group in android
body: <p>I want to change defult cluster group icon with my drawable icon. 
  Please check my code for cluster program. </p>
  
  <p><strong>MyClusterRenderer.java</strong></p>
  
  <pre><code>    public  class MyClusterRenderer extends DefaultClusterRenderer&lt;MyItem&gt; {
  
            public MyClusterRenderer(Context context, GoogleMap map,
                                     ClusterManager&lt;MyItem&gt; clusterManager) {
                super(context, map, clusterManager);
  
            }
  
            @Override
            protected void onBeforeClusterItemRendered(MyItem item, MarkerOptions markerOptions) {
                super.onBeforeClusterItemRendered(item, markerOptions);
  
   markerOptions.title("").icon(BitmapDescriptorFactory.fromResource(R.mipmap.location_both));// for marker
        }
  
            @Override
            protected void onClusterItemRendered(final MyItem clusterItem, Marker marker) {
                super.onClusterItemRendered(clusterItem, marker);
  
            }
  
  
        }
  </code></pre>
  
  <p>code in my fragment for setup cluser</p>
  
  <pre><code>  googleMap.clear();
          mClusterManager = new ClusterManager&lt;MyItem&gt;(getActivity(), googleMap);
  
          googleMap.setOnMarkerClickListener(mClusterManager);
          googleMap.setOnCameraChangeListener(mClusterManager);
          readItems();
          mClusterManager.setRenderer(new MyClusterRenderer(getActivity(), googleMap, mClusterManager));
  </code></pre>