Sencha Touch 2 获取 html img 标签

/** * @Author sai * 内容详细页 */Ext.define('SmartMenu.view.dynamic.Details', {      extend: 'Ext.Panel',      requires:['SmartMenu.view.dynamic.NewsImg'],      config: {        styleHtmlContent: true,        scrollable: 'vertical',        layout: 'vbox',        items:[],        listeners : {            painted : function(panel) {                var el = panel.element;                    el.on('tap', function(e, t) {                        var image = e.getTarget('img');                        if (image) {                        this.onTap(image.src);                                                   }                    }, panel);            }        }    },    initialize: function() {    var  panel=this;        var urls=this.getData().image_url;        var h = '<div>' +                        '<div id="news_detail_title">' + this.getData().title + '</div>' +                        '<div id="news_detail_time_user">' + this.getData().created + '<span>' + this.getData().user + '</span></div>' ;    h+='<div style="float:right">';     for(var i=0;i<urls.length;i++){    h+=" <div style='width:100px;'> <img width:100px; height:60px; src='"+urls[i]+"'/> </div>";    }     h+='</div>';                    h+=   '<div id="news_detail_desc">' + this.getData().description + '</div>' +                    '</div>';                  var items = [{html:h}];            this.setItems(items);    },    onTap:function(url){    if(url){        if(!Ext.getCmp('news')){    Ext.create('SmartMenu.view.dynamic.NewsImg',{id:'news'});}    imgPanel=Ext.getCmp('news');    var h = '[img]'+ url+'" style="height:100%; width:100%;[/img]';        imgPanel.setHtml(h);        if (!imgPanel.getParent()) {                Ext.Viewport.add(imgPanel);            }        imgPanel.show();    }    }    });