LIST添加ITEM图片自定义

this._gunList = this._view.getChild("GunList").asList;
this._gunList.removeChildrenToPool();

private init(): void
{
var guns = ItemNormal.list.guns; //读取策划配置的枪数据
for (var i = 0; i < guns.length; ++i)
{
var element = guns[i];
var item: fairygui.GButton = this._gunList.addItemFromPool().asButton;
item.id = i.toString();
item.icon = "res/shouQiang_001.png"; //换张图集
item.text = element.name;
//this._gunList.addChild(item);
}
this._gunList.on(fairygui.Events.CLICK_ITEM, this, this.onClickItem);
}
 
PS：
var ii = item.getChild("AK47");
ii.icon = "res/shouQiang_001.png";

通过这种方式赋值，也不可以。
谷主，LAYA是咱们还不支持这种么？