Apache flex 传递参数以完成事件-Adobe Flex

我使用HTTP请求下载二进制格式的图像。下载完成后，我想处理它，但我也想将图像的ID传递给完整的处理函数。。。这是怎么做到的

var loader:URLLoader = new URLLoader();

for(var i:int = 0 ; i<5; i++){

    /* When completed I want to access the variable "i" */
    loader.addEventListener(Event.complete, completeHandler);
    loader.load(/* a url request */);
}

private function completeHandler(event:Event):void
{
     /* I want to access the passed parameter "i" so 
      it is the same as it was when the eventListener was added, 0,1,2,3 or 4 */

 }

var-loader:URLLoader=new-URLLoader（）；
对于（var i:int=0；i这应该可以使用Flex的动态函数构造

下面是一个例子：

参数和处理程序：

var parameters:String = "Some parameter I want to pass";

private function loadLocalData(e:Event, parameter:String):void
{
  // voila, here's your parameter
}

private function addArguments(method:Function, additionalArguments:Array):Function 
{
  return function(event:Event):void {method.apply(null, [event].concat(additionalArguments));}
}

for(var i:int = 0 ; i<5; i++){

    /* When completed I want to access the variable "i" */
    loader.addEventListener(Event.complete, addArguments(completeHandler, [i]));
    loader.load(/* a url request */);
}

private function completeHandler(event:Event, id:int):void
{
     /* I want to access the passed parameter "i" so 
      it is the same as it was when the eventListener was added, 0,1,2,3 or 4 */

}

示例中的用法：

var parameters:String = "Some parameter I want to pass";

private function loadLocalData(e:Event, parameter:String):void
{
  // voila, here's your parameter
}

private function addArguments(method:Function, additionalArguments:Array):Function 
{
  return function(event:Event):void {method.apply(null, [event].concat(additionalArguments));}
}

for(var i:int = 0 ; i<5; i++){

    /* When completed I want to access the variable "i" */
    loader.addEventListener(Event.complete, addArguments(completeHandler, [i]));
    loader.load(/* a url request */);
}

private function completeHandler(event:Event, id:int):void
{
     /* I want to access the passed parameter "i" so 
      it is the same as it was when the eventListener was added, 0,1,2,3 or 4 */

}

for（var i:int=0；i这应该可以使用Flex的动态函数构造

下面是一个例子：

参数和处理程序：

var parameters:String = "Some parameter I want to pass";

private function loadLocalData(e:Event, parameter:String):void
{
  // voila, here's your parameter
}

private function addArguments(method:Function, additionalArguments:Array):Function 
{
  return function(event:Event):void {method.apply(null, [event].concat(additionalArguments));}
}

for(var i:int = 0 ; i<5; i++){

    /* When completed I want to access the variable "i" */
    loader.addEventListener(Event.complete, addArguments(completeHandler, [i]));
    loader.load(/* a url request */);
}

private function completeHandler(event:Event, id:int):void
{
     /* I want to access the passed parameter "i" so 
      it is the same as it was when the eventListener was added, 0,1,2,3 or 4 */

}

示例中的用法：

var parameters:String = "Some parameter I want to pass";

private function loadLocalData(e:Event, parameter:String):void
{
  // voila, here's your parameter
}

private function addArguments(method:Function, additionalArguments:Array):Function 
{
  return function(event:Event):void {method.apply(null, [event].concat(additionalArguments));}
}

for(var i:int = 0 ; i<5; i++){

    /* When completed I want to access the variable "i" */
    loader.addEventListener(Event.complete, addArguments(completeHandler, [i]));
    loader.load(/* a url request */);
}

private function completeHandler(event:Event, id:int):void
{
     /* I want to access the passed parameter "i" so 
      it is the same as it was when the eventListener was added, 0,1,2,3 or 4 */

}

for（var i:int=0；iexacly-附加方法addArguments（…）是最佳解决方案，我使用相同的方法，但它调用passParameters

public function passParameters(method:Function,additionalArguments:Array):Function
{return function(event:Event):void{
    method.apply(null, [event].concat(additionalArguments));}
}

这里是对这一点的解释——它很简单而且总是有效的
举例来说——附加方法addArguments（…）是最好的解决方案，我使用相同的方法，但它称为PasspParameters

public function passParameters(method:Function,additionalArguments:Array):Function
{return function(event:Event):void{
    method.apply(null, [event].concat(additionalArguments));}
}

这里是对这一点的解释-它很简单而且总是有效的
谢谢！所以当我在completeHandler（e:Event）中时，我如何访问“I”？@Phil，
i
将作为
completedhandler
函数中的
id
参数传递。您可以使用
id
访问它。当然，如果您愿意，您可以将
id
更改为
i
。：）谢谢！那么当我在completedhandler（e:Event）中时，我如何访问“i”？@Phil，
i
将作为
completeHandler
函数中的
id
参数传递。您可以使用
id
访问它。当然，如果愿意，您可以将
id
更改为
i
。）