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AS3 navigateToURL導(dǎo)致ExternalInterface 執(zhí)行失敗問(wèn)題

更新時(shí)間：2009年02月08日 16:08:37 作者：

我們先看下面代碼：

<?xml version="1.0" encoding="utf-8"?> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"> 
<mx:Script> 
<!--[CDATA[ 
import flash.external.ExternalInterface; 
private function init1():void 
{ 
var url:String = "javascript:alert('執(zhí)行navigateToURL');"; 
var request:URLRequest = new URLRequest(url); 
navigateToURL(request,"_self"); 
} 
private function init2():void 
{ 
ExternalInterface.call("function function1(){alert('執(zhí)行ExternalInterface');}"); 
} 
private function clickfun():void 
{ 
ExternalInterface.call("function function2(){window.document.title = '更改后的標(biāo)題';}"); 
} 
]]--> 
</mx:Script> 
<mx:Button x="150" y="92" label="1" click="init1()"/> 
<mx:Button x="544" y="92" label="2" click="init2()"/> 
<mx:Button x="404" y="315" label="更改標(biāo)題" click="clickfun()"/> 
</mx:Application> 
<?xml version="1.0" encoding="utf-8"?> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"> 

<mx:Script> 
<!--[CDATA[ 
import flash.external.ExternalInterface; 

private function init1():void 
{ 
var url:String = "javascript:alert('執(zhí)行navigateToURL');"; 
var request:URLRequest = new URLRequest(url); 
navigateToURL(request,"_self"); 
} 
private function init2():void 
{ 
ExternalInterface.call("function function1(){alert('執(zhí)行ExternalInterface');}"); 
} 

private function clickfun():void 
{ 
ExternalInterface.call("function function2(){window.document.title = '更改后的標(biāo)題';}"); 
} 

]]--> 
</mx:Script> 
<mx:Button x="150" y="92" label="1" click="init1()"/> 
<mx:Button x="544" y="92" label="2" click="init2()"/> 
<mx:Button x="404" y="315" label="更改標(biāo)題" click="clickfun()"/> 

</mx:Application> 

函數(shù)init1和init2都是通過(guò)javascript彈出提示框，clickfun()為修改網(wǎng)頁(yè)標(biāo)題。
3個(gè)函數(shù)單獨(dú)執(zhí)行都是成功的，但當(dāng)
1.先執(zhí)行init1函數(shù)后再調(diào)用clickfun函數(shù)，會(huì)發(fā)現(xiàn)clickfun執(zhí)行失敗。
2.先執(zhí)行init2函數(shù)后再調(diào)用clickfun函數(shù)，會(huì)發(fā)現(xiàn)clickfun執(zhí)行成功。
難道是navigateToURL會(huì)導(dǎo)致ExternalInterface 執(zhí)行失??？？請(qǐng)知道原因的朋友指導(dǎo)下。

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