3

我正在使用 SWFLoader 加载一个 swf 文件。代码如下：

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
               xmlns:s="library://ns.adobe.com/flex/spark" 
               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
    <fx:Declarations>
        <!-- Place non-visual elements (e.g., services, value objects) here -->
    </fx:Declarations>
    <mx:SWFLoader source="alerttesting.swf"/>
</s:Application>

并且 alerttesing.swf 代码受到打击：

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" 
            width="100%" height="100%" fontFamily="Arial" fontSize="12"
            xmlns:ilog="http://www.ilog.com/2007/ilog/flex"       
            xmlns:local="c7.views.apps.calendar.*"
            backgroundColor="#FFFFFF">

<mx:Script>
    <![CDATA[
        import mx.controls.Alert
        public function testingalerta():void{
            Alert.show("sa;lfks;aljfa;sljf");
        }
    ]]>
</mx:Script>
<mx:Canvas>
    <mx:VBox>
        <mx:Button click="testingalerta()"/>
        <mx:Button label="aslkdfjasj" click="{Alert.show('sdfslfjlsjf;asjfa;sj');}"/>   
    </mx:VBox>
</mx:Canvas>


</mx:Application>

每次单击按钮时，都会出现以下错误：

TypeError: Error #1009: Cannot access a property or method of a null object reference.
    at mx.managers::PopUpManagerImpl/http://www.adobe.com/2006/flex/mx/internal::createModalWindow()[E:\dev\4.x\frameworks\projects\framework\src\mx\managers\PopUpManagerImpl.as:686]
    at mx.managers::PopUpManagerImpl/addPopUp()[E:\dev\4.x\frameworks\projects\framework\src\mx\managers\PopUpManagerImpl.as:401]
    at mx.managers::PopUpManager$/addPopUp()[E:\dev\4.x\frameworks\projects\framework\src\mx\managers\PopUpManager.as:193]
    at mx.controls::Alert$/show()[E:\dev\4.x\frameworks\projects\framework\src\mx\controls\Alert.as:618]
    at alerttesting/abcd()[C:\Users\zee\Adobe Flash Builder 4.5\calendar\src\alerttesting.mxml:12]
    at alerttesting/___alerttesting_Button1_click()[C:\Users\zee\Adobe Flash Builder 4.5\calendar\src\alerttesting.mxml:16]

你能解释一下我该如何解决这个问题。

问候泽山

4

2 回答 2

5

Jason was close. Not only do you have to import the PopUpManager but you also have to use it.

<fx:Script>
    <![CDATA[
        import mx.managers.PopUpManager;
        private var manager:PopUpManager;
    ]]>
</fx:Script>

I found the answer here.

于 2011-07-13T00:52:52.213 回答
1

我认为您只需要导入 mx PopUpManager。

尝试向您的应用添加导入：

    <fx:脚本>
        <![CDATA[
            导入 mx.managers.PopUpManager；
        ]]>
    </fx:脚本>
于 2011-07-13T00:31:55.970 回答