如何在AS3的阶段中检索所有MC？

Question

如何在阶段中检索所有MC？

我想为场景中存在的所有MovieClip调用addEventListener，如果有可能在我的方案的选定帧号中调用它，则类似于该伪代码

for(i=0; nbOfChild ; i++)
   if(stage.childAt(i) is MC and isInTheFrameWithLabel('foo') )
     stage.childAt(i).addEventListerner(MyStuff)

Answer 1

几乎就是您所拥有的。

for(var i:int = 0; i<numChildren; i++)
{
    var e:DisplayObject = getChildAt(i);
    if(e is MovieClip)
    {
        // do stuff with e
        trace(e);
    }
}

您也可以成为一个棘手的骗子，并执行以下操作：

/**
 * Iterate through MovieClips within a container and parse them through handler
 * @param container The container to iterate through and find MovieClips in
 * @param handler A function that accepts MovieClip as its only parameter
 */
function each(container:DisplayObjectContainer, handler:Function):void
{
    for(var i:int = 0; i<container.numChildren; i++)
    {
        var e:DisplayObject = container.getChildAt(i);
        if(e is MovieClip) handler(e);
    }
}

// Example
each(this, function(mc:MovieClip):void
{
    trace(mc);
    mc.x += 10;
});

Answer 2

您还应该将这些影片剪辑推送到数组中，以了解触​​发事件的影片剪辑，因此您需要：

var holdObjects:Array = new Array();
for(var i:int = 0; i<numChildren; i++)
{
    var e:DisplayObject = getChildAt(i);
    if(e is MovieClip)
    {
        // do stuff with e
        trace(e);
        e.addEventlistene(...);
        holdObjects.push(e);
    }
}