如何在Flex3文件的Actionscript部分中附加.swf文件中的符号?
我准备了一个简单的测试案例来证明我的问题。一切正常(4个按钮上有图标,有一个红色圆圈) - 除了getDefinitionByName()部分。
我的目标是“动态地”附加库中的符号 - 即取决于运行时套装变量的值。
Symbols.as:
package {
public class Symbols {
[Embed('../assets/symbols.swf', symbol='spades')]
public static const SPADES:Class;
[Embed('../assets/symbols.swf', symbol='clubs')]
public static const CLUBS:Class;
[Embed('../assets/symbols.swf', symbol='diamonds')]
public static const DIAMONDS:Class;
[Embed('../assets/symbols.swf', symbol='hearts')]
public static const HEARTS:Class;
}
}
TestCase.mxml:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute"
creationComplete="onCreationComplete();">
<mx:Script>
<![CDATA[
private function onCreationComplete():void
{
var sprite:Sprite = new Sprite();
var g:Graphics = sprite.graphics;
g.lineStyle(1, 0xFF0000);
g.beginFill(0xFF0000);
g.drawCircle(100, 100, 20);
g.endFill();
spriteHolder.addChild(sprite);
// XXX stuff below not working, can it be fixed?
var suit:String = "SPADES";
var mc:MovieClip = new (getDefinitionByName("Symbols.SPADES") as Class);
spriteHolder.addChild(mc);
}
]]>
</mx:Script>
<mx:VBox width="100%">
<mx:Button label="1" icon="{Symbols.SPADES}" />
<mx:Button label="2" icon="{Symbols.CLUBS}" />
<mx:Button label="3" icon="{Symbols.DIAMONDS}" />
<mx:Button label="4" icon="{Symbols.HEARTS}" />
<mx:UIComponent id="spriteHolder" width="200" height="200"/>
</mx:VBox>
</mx:Application>
答案 0 :(得分:1)
与Symbols[suit]
一起使用。如果object[expression]
评估为object.ident
,则String(expression)
相当于"ident"
。