我正在尝试了解 AS3 工作人员的窍门，但一定有一些难以捉摸的理解让我无法理解。
我已经构建了一个相当简单的 PoC 来看看它应该如何工作，但没有运气。当我运行“主” SWF 时，它似乎可以很好地加载工作程序 SWF 并且顺利完成所有操作，除了该死的工作程序没有任何响应。
我将 Flash Builder 4.6 与 FlexSDK 4.9.1 一起使用，PoC 项目构建为 ActionScript 项目。
工人档案：
package
{
import flash.display.Sprite;
import flash.events.Event;
import flash.system.MessageChannel;
import flash.system.Worker;
public class WorkerPOC extends Sprite
{
private var wToM:MessageChannel;
private var mToW:MessageChannel;
public function WorkerPOC()
{
wToM = Worker.current.getSharedProperty("wToM") as MessageChannel;
mToW = Worker.current.getSharedProperty("mToW") as MessageChannel;
trace(mToW.receive());
wToM.send("Ready");
}
}
}
主文件：
package
{
import flash.display.Sprite;
import flash.events.Event;
import flash.net.URLLoader;
import flash.net.URLLoaderDataFormat;
import flash.net.URLRequest;
import flash.system.MessageChannel;
import flash.system.Worker;
import flash.system.WorkerDomain;
import flash.utils.ByteArray;
public class WorkerMaster extends Sprite
{
private var workerLoader:URLLoader;
private var workerData:ByteArray;
private var worker:Worker;
private var wToM:MessageChannel;
private var mToW:MessageChannel;
public function WorkerMaster()
{
workerLoader = new URLLoader();
workerLoader.dataFormat = URLLoaderDataFormat.BINARY;
addEventListener(Event.ADDED_TO_STAGE, onAdded);
}
private function onAdded(event:Event):void
{
removeEventListener(Event.ADDED_TO_STAGE, onAdded);
workerLoader.addEventListener(Event.COMPLETE, onHasWorker);
workerLoader.load(new URLRequest("workers/WorkerPOC.swf"));
}
private function onHasWorker(event:Event):void
{
workerData = workerLoader.data as ByteArray;
workerData.shareable = true;
worker = WorkerDomain.current.createWorker(workerData);
wToM = worker.createMessageChannel(Worker.current);
wToM.addEventListener(Event.CHANNEL_MESSAGE, onMessage);
wToM.addEventListener(Event.CHANNEL_STATE, onState);
mToW = Worker.current.createMessageChannel(worker);
worker.setSharedProperty("wToM",wToM);
worker.setSharedProperty("mToW",mToW);
worker.start();
mToW.send(123);
}
private function onState(event:Event):void
{
trace("Channel state: ", wToM.state);
}
private function onMessage(event:Event):void
{
trace(wToM.receive());
}
}
}