[AS3]mp3音乐播放器实例源代码参考

[AS3]mp3音乐播放器实例源代码参考,mp3音乐播放器,音乐播放器

package { 
 import flash.display.SimpleButton; 
 import flash.display.MovieClip; 
 import flash.events.Event; 
 import flash.events.MouseEvent; 
 import flash.media.Sound; 
 import flash.media.SoundChannel; 
 import flash.media.SoundTransform; 
 import flash.display.Stage; 
 import flash.net.URLRequest; 
 import flash.geom.Rectangle; 
 import flash.display.DisplayObject; 
 public class DocumentClass extends MovieClip{ 
  var mp3Url:String="http://localhost/UserVideo/2007108/aaa.mp3"; 
     var _sound:Sound; 
  var _channel:SoundChannel; 
  var _SoundTransform:SoundTransform; 
  var _position:int; 
  var _frameMCSpend:int; 
     var mask_play:MovieClip; 
 
  public function DocumentClass() { 
 
 
   BtnPlay.visible=false; 
 
   // cuplayer.com创建一个声音对象，并播放之 
   _sound = new Sound(); 
   _sound.load(new URLRequest(mp3Url)); 
   _SoundTransform=new SoundTransform(0.5,0); 
   _channel = _sound.play(0,1,_SoundTransform); 
   _channel.addEventListener(Event.SOUND_COMPLETE,onSoundEnd); 
   mask_play=MovieClip(playBar.getChildByName("mask_play")); 
   mask_play.addEventListener(Event.ENTER_FRAME,onBarEnterFrame); 
 
   BtnPlay.addEventListener(MouseEvent.MOUSE_UP,onPlay); 
 
   BtnSuspend.addEventListener(MouseEvent.MOUSE_UP, onPause); 
   BtnStop.addEventListener(MouseEvent.MOUSE_UP, onStop); 
 
   BtnBlock.addEventListener(MouseEvent.MOUSE_DOWN, mouseDownListener); 
   BtnBlock.addEventListener(MouseEvent.MOUSE_UP, mouseUpListener); 
   BtnBlock.addEventListener(MouseEvent.MOUSE_MOVE, mouseMoveListener); 
   vol.addEventListener(MouseEvent.MOUSE_OUT,mouseOutListener); 
  } 
  function onSoundEnd(event:Event):void { 
   BtnPlay.visible=true; 
   BtnSuspend.visible=false; 
   _position=0; 
  } 
  private function onBarEnterFrame(event:Event):void { 
   if (_sound.length>0) { 
    trace(_sound.bytesTotal); 
    trace(_sound.bytesLoaded); 
    trace(_sound.length); 
    var lengthTotal:int=_sound.bytesTotal/_sound.bytesLoaded*_sound.length; 
       playBar.stage.frameRate=1000*mask_play.totalFrames/lengthTotal; 
    mask_play.removeEventListener(Event.ENTER_FRAME,onBarEnterFrame); 
   } 
  } 
  function mouseMoveListener(event:MouseEvent):void { 
   var newnewSoundTransform:SoundTransform=new SoundTransform((event.stageX-203.3)/80,0); 
   _channel.soundTransform=newSoundTransform; 
  } 
  function mouseDownListener(event:MouseEvent):void { 
   var rectang:Rectangle=new Rectangle(); 
   rectang.x=203.3; 
   rectang.y=63.8; 
   rectang.height=0; 
   rectang.width=80; 
   BtnBlock.startDrag(false,rectang); 
  } 
  function mouseUpListener(event:MouseEvent):void { 
   BtnBlock.stopDrag(); 
  } 
  function mouseOutListener(event:MouseEvent):void{ 
   BtnBlock.stopDrag(); 
  } 
  function onPlay(event:MouseEvent):void { 
   mask_play.gotoAndPlay(mask_play.currentFrame); 
   _channel = _sound.play(_position); 
   BtnSuspend.visible=true; 
   BtnPlay.visible=false; 
  } 
  function onPause(event:MouseEvent):void { 
   mask_play.gotoAndStop(mask_play.currentFrame); 
   BtnSuspend.visible=false; 
   BtnPlay.visible=true; 
   _position = _channel.position; 
   _channel.stop(); 
  } 
  function onStop(event:MouseEvent):void { 
   mask_play.gotoAndStop(null); 
   BtnSuspend.visible=false; 
   BtnPlay.visible=true; 
   _position=0; 
   _channel.stop(); 
  } 
 } 
}