title: Ext.map markers are not loading in Sencha touch 2
body: <p>I use following code to add markers to map which  is not showing me the marker in Ext.map</p>
  
  <pre><code>{
      xtype: 'map',
      id :'geomap', 
      width: '70%', 
      height: '100%', 
      layout: 'fit',
      useCurrentLocation: false, 
      flex: 3, 
      mapOptions: {
          zoom: 15,
              mapTypeId: google.maps.MapTypeId.ROADMAP,
          mapTypeControl : false,
          navigationControl : false,
          streetViewControl : false,
          backgroundColor: 'transparent',
          disableDoubleClickZoom: true,
          draggable: true,
          keyboardShortcuts: false,
          scrollwheel: true,
  
      },
      initialize: function() {
          var gMap = this.getMap();
  
          // drop map marker
          var marker = new google.maps.Marker({
              map: gMap,
              animation: google.maps.Animation.DROP,
              position: new google.maps.LatLng (12.82787,80.219722),
              title:"Hello World!"
          });
          var geo = Ext.create('Ext.util.Geolocation', {
              autoUpdate: true,
              listeners: {
                  locationupdate: function (geo) {
                      var center = new google.maps.LatLng(geo.getLatitude(), geo.getLongitude());
                      Ext.getCmp('geomap').update(center);
                      //To place the marker
                      var marker = new google.maps.Marker({
                          position: center,
                          map: Ext.getCmp('geomap').map
                      });
                      Ext.msg.alert('New latitude: ' + geo.getLatitude());
                  },
  
                  locationerror: function (geo, bTimeout, bPermissionDenied, bLocationUnavailable, message) {
                      if (bTimeout) {
                          Ext.msg.alert('Timeout occurred.');
                      } else {
                          Ext.msg.alert('Error occurred.');
                      }
                  }
              }
          });
          geo.updateLocation();
      }
  }
  </code></pre>
  
  <p>which is not showing markers . Please help .</p>