launch : function() {

        var store = Ext.create('Ext.data.Store', {
            autoLoad: true,
            fields: ['title'],
            proxy: {
                type: 'jsonp',
                url: 'https://www.sencha.com/forum/remote_topics/index.php',
                reader: {
                    rootProperty: 'topics',
                    totalProperty: 'totalCount'
                }
            }            
        });

        Ext.create('Ext.DataView', {
            fullscreen: true,
            store: store,
            itemTpl: '<p>{title}</p>'
        });
    }