1、新建一個(gè)AS3.0文檔，拖入一張圖片到庫，點(diǎn)插入，新建一個(gè)影片剪輯元件（取名：圖片元件），再拖入圖片， 2、點(diǎn)插入新建影片剪輯元件，拖入“圖片元件”，然后隨意做個(gè)幾楨的動(dòng)畫(huà)。最后一楨把圖片放大，或設置透明度等。 3、拖入圖片動(dòng)畫(huà)到場(chǎng)景取實(shí)例名為“mc”,再新建一層AS代碼層，復制以下代碼貼上及可。
import flash.media.SoundMixer;
import flash.events.Event;
import flash.media.Sound;
import flash.net.URLRequest;
import flash.events.MouseEvent;
import flash.ui.ContextMenu;
import flash.ui.ContextMenuBuiltInItems;
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.align = StageAlign.TOP_LEFT;
var menu:ContextMenu=new ContextMenu();
menu.hideBuiltInItems();
this.contextMenu = menu;
var sound:Sound=new Sound();
var sc:SoundChannel=new SoundChannel();
var position:Number;
var isPlay:Boolean;
var byteArray:ByteArray= new ByteArray();
sound.load(new URLRequest("http://img0.oldkids.cn/upload/2021/05/20/blog_260848287_20210520142951772.mp3 "));
sc = sound.play();
this.addEventListener(MouseEvent.CLICK,onClickHandler);
sc.addEventListener(Event.SOUND_COMPLETE,scCompleteHandler);
function onClickHandler(event:MouseEvent):void
{
isPlay = ! isPlay;
if (isPlay)
{
position = sc.position;
sc.stop();
}
else
{
sc.stop();
sc = sound.play(position);
}
sc.addEventListener(Event.SOUND_COMPLETE,scCompleteHandler);
}
function scCompleteHandler(event:Event):void
{
sc = sound.play();
sc.addEventListener(Event.SOUND_COMPLETE,scCompleteHandler);
}
this.addEventListener(Event.ENTER_FRAME, enterFrameHandler);
function enterFrameHandler(event:Event):void
{
SoundMixer.computeSpectrum(byteArray,true);
var ratio:Number = range(Math.round(byteArray.readFloat() / 1.414 * mc.totalFrames));
//var ratio:Number = range(Math.round((sc.leftPeak+sc.rightPeak)*.5 * mc.totalFrames));
mc.gotoAndStop(ratio);
}
function range(value:Number):Number
{
if (value>1)
{
return value;
}
else
{
return 1;
}
}
