Sencha Touch动态添加项目

app.views.ViewItem = Ext.extend(Ext.Panel, {
    id: \'0\',
    dockedItems: [{
        xtype: \'toolbar\',
        title: \'Melvin test\',
        items: [
            {
                text: \'Terug\',
                ui: \'back\',
                listeners: {
                    \'tap\': function () {
                        Ext.dispatch({
                            controller: app.controllers.appController,
                            action: \'backToRssList\',
                            animation: {type:\'slide\', direction:\'right\'}
                        });
                    }
                }
            },
            {xtype:\'spacer\'},
            {
                id: \'share\',
                text: \'Delen\',
                ui: \'action\',
                listeners: {
                    \'tap\': function () {
                        Ext.dispatch({
                            controller: app.controllers.appController,
                            action: \'share\',
                        });
                    }
                }
            }
        ]
    }],
    items: [],
    initComponent: function() { 
        app.views.ViewItem.superclass.initComponent.apply(this, arguments); 
    },
    getView: function(data) {
        //this.items.add({html: \'test\'});
    },
});

this.items.add({html: \'test\'});

Uncaught TypeError: Object #<Object> has no method \'getItemId\'