FLEX中ViewStack刷新解决方案

在ViewStack的生命周期中仅只会加载一次view，对于某些业务来说这样的加载方式不大合适，有没有一种办法在每次切换NavigatorContent的时候都重新加载view呢？

办法是有的，直接上代码

    <mx:ViewStack id="viewStack1" bottom="0" right="0" top="0" left="0" change="viewStack1_changeHandler(event)">
        <s:NavigatorContent width="100%" height="100%" label="列表" icon="@Embed(source='http://www.cnblogs.com/http://www.cnblogs.com/__assets/icon/main/36/list.png')">
            <view:CommodityListView id="listView" width="100%" height="100%" 
                                    showAddView="listView_showAddViewHandler(event)"
                                    showModifyView="listView_showModifyViewHandler(event)"
                                    showPreviewView="listView_showPreviewViewHandler(event)"/>
        </s:NavigatorContent>
        <s:NavigatorContent width="100%" height="100%" label="修改" icon="@Embed(source='http://www.cnblogs.com/http://www.cnblogs.com/__assets/icon/main/36/modify.png')">
            <view:CommodityModifyView id="modifyView" width="100%" height="100%" commodityVO="{this.vo}" returnToListView="addView_returnToListViewHandler(event)" modifyOK="modifyView_modifyOKHandler(event)"/>
        </s:NavigatorContent>
        <s:NavigatorContent id="AddContent" width="100%" height="100%" label="新增" icon="@Embed(source='http://www.cnblogs.com/http://www.cnblogs.com/__assets/icon/main/36/add.png')">
            <view:CommodityAddView id="addView" width="100%" height="100%" returnToListView="addView_returnToListViewHandler(event)" addOK="addView_addOKHandler(event)"/>
        </s:NavigatorContent>
    </mx:ViewStack>

我想刷新新增view 给NavigatorContent指定一个ID：AddContent

创建ViewStack的change事件（当所选的子容器更改时分派此方法）

代码

            protected function viewStack1_changeHandler(event:IndexChangedEvent):void
            {
                // TODO Auto-generated method stub
                var nav:NavigatorContent = event.relatedObject as NavigatorContent;
                if(nav.id == "AddContent")
                {
                    addView = new CommodityAddView(); 

                    nav.addElement(addView);
                }
                else
                {
                    AddContent.removeElement(addView);  
                    nav= null;
                }
            }