AS3將swf加載為Movieclip

Question

我需要加載一個外部swf並將其用作FlashDevelop中的Movieclip，即我需要能夠轉到特定的關鍵幀，啟動和停止它的播放等。一些簡單的工作示例代碼將受到極大的贊賞，因為我無法通過Google查找任何令人滿意的教程。

編輯我現在有這個代碼

package 
{
import flash.net.*;
import flash.display.*;
import flash.events.*;
import flash.utils.getQualifiedClassName;

public class Main extends MovieClip 
{

    var animatedBox:MovieClip = new MovieClip();
    var ldr:Loader = new Loader();
    var frames:int = 0;

    public function Main():void 
    {
        if (stage) init();
        else addEventListener(Event.ADDED_TO_STAGE, init);
    }

    private function init(e:Event = null):void 
    {
        removeEventListener(Event.ADDED_TO_STAGE, init);
        ldr.contentLoaderInfo.addEventListener(Event.COMPLETE, onload);
        ldr.load(new URLRequest("../lib/test.swf"));
    }

    function onload(e:Event)
    {
        if ( !e.target )
        return;

        if( e.target.content is MovieClip )
        {
            animatedBox = e.target.content as MovieClip;

            animatedBox.gotoAndPlay("Start");
        }
        else
        {
            trace( getQualifiedClassName( e.target.content ) );
        }
    }

}

}

嘗試運行它后，出現[Fault]異常，信息= TypeError：錯誤＃1009：無法訪問空對象引用的屬性或方法。 有任何想法嗎？

Answer 1

import flash.utils.getQualifiedClassName;

var mc: MovieClip;

var ldr: Loader = new Loader();
ldr.contentLoaderInfo.addEventListener( Event.COMPLETE, onLoad );
ldr.load( new URLRequest("your.swf") );


function onLoad( e:Event ):void 
{
    if( !e.target )
        return;

    trace( getQualifiedClassName( e.target.content ) );
    /* if you get: flash.display::AVM1Movie
       it means you are trying to load an AS1 or AS2 SWF
       into AS3 SWF. They both need to be AS3 */

    mc = e.target.content as MovieClip;
    mc.gotoAndPlay( 2 );    
    // or  mc.gotoAndPlay( 'yourLabel' ); 

}