PopUpManager的createPopUp与addPopUp区别(转)

文章转自网络：

createPopUp:先设置好弹出方式，然后new出来一个TitleWindow的对象，再通过此对象设置它的表现形式。

addPopUp：先new出来对象，设置好表现形式，然后在选择弹出来。

要注意new对象与弹出方式的先后顺序！

<?xml version="1.0" encoding="utf-8"?>

<!-- http://yecon.blog.hexun.com/29989820_d.html -->

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"

layout="vertical"

verticalAlign="middle"

backgroundColor="white"

creationComplete="init()">

<mx:Script>

<![CDATA[

import mx.managers.PopUpManagerChildList;

import mx.controls.Label;

import mx.events.CloseEvent;

import mx.containers.TitleWindow;

import mx.managers.PopUpManager;

private var titleWindow:TitleWindow;

private function init():void {

var label:Label = new Label();

label.text = "Hello world";

titleWindow = new TitleWindow();

titleWindow = TitleWindow(PopUpManager.createPopUp(this,TitleWindow,true));

titleWindow.title = "Custom title";

titleWindow.showCloseButton = true;

titleWindow.width = 240;

titleWindow.height = 180;

titleWindow.addChild(label);

titleWindow.addEventListener(CloseEvent.CLOSE, titleWindow_close);

PopUpManager.centerPopUp(titleWindow);

}

private function titleWindow_close(evt:CloseEvent):void {

PopUpManager.removePopUp(titleWindow);

}

]]>

</mx:Script>

<mx:Button label="Launch TitleWindow" click="init()" />

</mx:Application>

-----------------------------------------------------------------

<?xml version="1.0" encoding="utf-8"?>

<!-- http://yecon.blog.hexun.com/29989820_d.html -->

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"

layout="vertical"

verticalAlign="middle"

backgroundColor="white"

creationComplete="init()">

<mx:Script>

<![CDATA[

import mx.controls.Label;

import mx.events.CloseEvent;

import mx.containers.TitleWindow;

import mx.managers.PopUpManager;

private var titleWindow:TitleWindow;

private function init():void {

var label:Label = new Label();

label.text = "Hello world";

titleWindow = new TitleWindow();

titleWindow.title = "Custom title";

titleWindow.showCloseButton = true;

titleWindow.width = 240;

titleWindow.height = 180;

titleWindow.addEventListener(CloseEvent.CLOSE, titleWindow_close);

titleWindow.addChild(label);

PopUpManager.addPopUp(titleWindow, this, true);

PopUpManager.centerPopUp(titleWindow);

}

private function titleWindow_close(evt:CloseEvent):void {

PopUpManager.removePopUp(titleWindow);

}

]]>

</mx:Script>

<mx:Button label="Launch TitleWindow" click="init()" />

</mx:Application> 

 

转载于:https://www.cnblogs.com/mikevictor07/archive/2012/10/15/2723773.html