錯誤訪問的ExternalInterface的回調

Question

這裏是我的動作中類變量（編譯mxmlc的，嵌入到HTML和功能調用JS）：

package { 
    import flash.display.Sprite; 
    import flash.external.ExternalInterface; 
    import flash.media.Sound; 
    import flash.media.SoundChannel; 
    import flash.net.URLRequest; 

    public class LyrePlayer extends Sprite { 
     private var out:SoundChannel; 
     private var player:Sound; 

     public function LyrePlayer() { 
      out = new SoundChannel(); 
      player = new Sound(); 
      ExternalInterface.addCallback("play", play); 
      ExternalInterface.addCallback("stop", stop); 
     } 

     private function play(url:String):void { 
      var request:URLRequest = new URLRequest(url); 
      player.load(request); 
      if(out.position != 0) out.stop(); 
      out = player.play(); 
     } 

     private function stop():void { 
      out.stop(); 
     } 
    } 
} 

這一切工作，排序的。我可以播放一個文件，並撥打stop()任意多次。但是如果我第二次撥打play()，則會報錯：

> flashObject.play("/static/test.mp3") 
[the song plays] 
> flashObject.stop() 
[the song stops] 
> flashObject.play("/static/test.mp3") 
Error 
arguments: undefined 
message: "Error calling method on NPObject." 
> flashObject.stop() 
[no error] 

任何想法？

Answer 1

好像你需要調用player.close()，這裏有一個working example