自娱自乐——flex4自制简易mp3播放器v1.0
刚开始学flex4没多久，练练手，做了个flex4的简易MP3播放器，自娱自乐而已呵呵。
希望大家多多指点一下。
感觉flex4与以前的版本相比变化较大，而且很多教程都还是flex3的，所以在制作的时候还是遇到了些麻烦的事情。
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此程序为AIR工程，使用Flash Buidler 4 ，制作，新建项目时使用AIR项目。
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文件结构：
music.swf?? 主运行文件
musiclist.xml?? 歌曲列表
music文件夹??? 存放歌曲的地方
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在运行本程序的时候记得先编辑歌曲列表，再将MP3歌曲放在music文件夹
嘿嘿，此播放器如果不人工操作，只能单曲循环……
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贴一下代码:
<?xml version="1.0" encoding="utf-8"?><s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx" width="206" height="227" showStatusBar="false" applicationComplete="init_play()" backgroundColor="#82826b"><fx:Script><![CDATA[import mx.events.ListEvent;private var goon:Boolean=true;private var musicS:Sound;private var musicSC:SoundChannel;private var url_t:String="music/";private var url_s:String="";private var temp_name:String="";private var pause:Boolean=false;private var time:Number;private function init_play():void{music_play.enabled=false;music_stop.enabled=false}private function musicS_play():void{if(goon){if(pause){musicSC=musicS.play(time);musicSC.soundTransform=new SoundTransform(volume.value/10);music_play.label="暂停";goon=false;pause=false;}else{musicS=new Sound(new URLRequest(url_s));musicSC=musicS.play();musicSC.addEventListener(Event.SOUND_COMPLETE,next_play);music_name.text=temp_name;musicSC.soundTransform=new SoundTransform(volume.value/10);music_play.label="暂停";music_stop.enabled=true;goon=false;pause=false;}}else{music_play.label="开始";goon=true;pause=true;time=musicSC.position;musicSC.stop();}}private function next_play(event:Event):void{goon=true;pause=true;time=0;musicS_play();musicSC.addEventListener(Event.SOUND_COMPLETE,next_play);}protected function music_play_clickHandler(event:MouseEvent):void{musicS_play();}protected function music_list_changeHandler(event:ListEvent):void{music_play.enabled=true;url_s=url_t+music_list.selectedItem.path;temp_name=music_list.selectedItem.title;}protected function volume_changeHandler(event:Event):void{if(!goon){musicSC.soundTransform=new SoundTransform(volume.value/10);}}protected function music_stop_clickHandler(event:MouseEvent):void{music_play.enabled=false;music_stop.enabled=false;goon=true;pause=false;musicSC.stop();music_play.label="开始";}]]></fx:Script><fx:Declarations><fx:Model id="musicData" source="musiclist.xml"/><s:ArrayList id="musicList" source="{musicData.music}"/></fx:Declarations><s:Button x="10" y="188" label="开始" id="music_play" click="music_play_clickHandler(event)" width="51" cornerRadius="9"/><s:HSlider x="129" y="188" width="67" height="15" id="volume" change="volume_changeHandler(event)" minimum="0" maximum="10" value="5"/><s:Label x="10" y="10" width="186" height="16" id="music_name" fontSize="12" text="歌曲名称" fontStyle="normal" fontWeight="normal" textDecoration="none" fontFamily="Arial" color="#7C2F00"/><mx:DataGrid y="34" width="187" height="146" id="music_list" dataProvider="{musicList}" change="music_list_changeHandler(event)" dropShadowVisible="false" borderAlpha="0.6" selectedIndex="0" x="9"><mx:columns><mx:DataGridColumn headerText="曲目" dataField="title"/><mx:DataGridColumn headerText="path" dataField="path" visible="false"/></mx:columns></mx:DataGrid><s:Button x="70" y="188" label="停止" id="music_stop" width="51" click="music_stop_clickHandler(event)" cornerRadius="9"/><mx:Image x="138" y="2" width="55" height="31" source="EyeT.gif"/></s:WindowedApplication>