title: How to add map listeners onto map page
body: <p>How to I add a map listener to my first map page?
  I saw many examples which create a map and put it into a page, but here in my code, the map itself is a page.
  So I do not know how to add map listeners in this way.</p>
  
  <pre><code>Ext.define('myapp.view.Main', {
      extend: 'Ext.tab.Panel',
      xtype: 'main',
      fullscreen: true,
      requires: [
          'Ext.TitleBar',
          'Ext.Video',
          'Ext.Map',
          'Ext.Panel',
          'Ext.tab.*',
          'Ext.*'
      ],
      config: {
          tabBarPosition: 'bottom',
  
        items: [
              {
                  title: 'WebTrack',
                  iconCls:'maps',
                  xtype: 'map',
                  useCurrentLocation: true,
                  store: 'my.store.appleStore',
  
              }
  </code></pre>
  
  <p>Can someone help please?</p>
  
  <p>Thanks very much</p>