actionscript-3 - Actionscript从字符串数组加载/调用声音

Question

我试图通过创建包含每个声音的文件路径(或名称)的字符串数组来实例化一堆声音。

var soundByName:Object = {};
var channelByName:Object = {};
var soundName:String;
var channelName:String;
loadSounds();

function loadSounds():void
    {
    var files:Array = new Array("sound1.mp3", "sound2.mp3"); //etc.
    for (var i:int = 0; i < files.length; i++)
        {
        soundName = files[i];
        soundByName.soundName = new Sound();
        soundByName.soundName.addEventListener(Event.COMPLETE, sound_completeHandler);
        soundByName.soundName.addEventListener(IOErrorEvent.IO_ERROR, sound_ioErrorHandler);
        soundByName.soundName.load(new URLRequest(soundName));
        }
    }

function sound_completeHandler(e:Event):void
    {
    channelName = e.currentTarget.name;
    channelByName.channelName = new SoundChannel();
    }

function sound_ioErrorHandler(e:IOErrorEvent):void
    {
    trace("Failed To Load Sound:" + e.currentTarget.name);
    }

然后这样调用:

//Stop a sound
channelByName["sound1.mp3"].stop();

//Play a sound
channelByName["sound2.mp3"] = soundByName["sound2.mp3"].play();

我当前的代码包含来自sound_completeHandler()函数的错误，指出未找到'name'属性。我不知道如何添加此名称属性，或如何其他引用e.currentTarget。

Answer 1

您的代码有3个部分是错误的:

soundByName是一个对象，您正在执行soundByName.soundName=new Sound() =>，您将在soundByName中创建一个名为soundName的字段。
使用soundByName[soundName]=new Sound();意味着创建一个字段，该字段的名称取自变量coundName。

您正在使用channelByName进行相同操作使用channelByName[channelName]=value;

然后，您想从名称中关联一个soundChannel，它不能工作Sound对象没有此类字段。使用字典，在其中将声音与名称相关联。

var nameBySound:Dictionary = new Dictionary();
var soundByName:Object = {};
var channelByName:Object = {};
loadSounds();

function loadSounds():void {
  var files:Array = ["sound1.mp3", "sound2.mp3"]; //etc.
  for (var i:int = 0; i < files.length; i++) {
   var soundName:String = files[i];
   var sound:Sound=new Sound(); 
   nameBySound[sound] = soundName;
   soundByName[soundName] = sound;
   sound.addEventListener(Event.COMPLETE, sound_completeHandler);
   sound.addEventListener(IOErrorEvent.IO_ERROR, sound_ioErrorHandler); 
   sound.load(new URLRequest(soundName));
  }
}                                                                        

function sound_completeHandler(e:Event):void {                           
 var soundName:String=nameBySound[e.currentTarget];                      
 channelByName[soundName] = new SoundChannel();                          
}                                                                        

function sound_ioErrorHandler(e:IOErrorEvent):void {
 trace("Failed To Load Sound:" + nameBySound[e.currentTarget]);
}