flex PopUpManager使用说明

PopUpManager在产生TitleWindow时应记录当前的TitleWindow，目前只能通过1）获取

1) var titleWindowInstance:TitleWindowData = TitleWindowData(PopUpManager.createPopUp(this, TitleWindowData, false));

PopUpManager.centerPopUp(titleWindowInstance);

//TitleWindowData 获取parent

titleWindowInstance.mainApp = this;

2)PopUpManager.addPopUp(new TitleWindowData,this, false)