title: add multiple ClusterManager to Google map
body: <p>I am trying to use two ClusterManager for Google Map , But I am able to add only one clustermanager and it's item click event,</p>
  
  <p>googleMap.setOnMarkerClickListener(mClusterManager);</p>
  
  <p>and</p>
  
  <pre><code>mClusterManager.setOnClusterItemClickListener(new OnClusterItemClickListener&lt;Person&gt;() {
  
      @Override
      public boolean onClusterItemClick(Person item) {
          Log.v("Cluster Click", "Item Click:"+item.getName());
          return true;
      }
  });
  </code></pre>
  
  <p>How can I add one more clustermanager to googlemap?</p>
  
  <p>Thanks in advance.</p>