要求

• • 必备知识

    本文要求基本了解 Adobe Flex编程知识和JAVA基础知识。

  • 开发环境

    MyEclipse10/Flash Builder4.6/Flash Player11及以上

  • 演示地址

 

播放器演示已经在博客banner部分给出了,下面还是上一截图吧:

 

下面是程序的核心业务代码:

//此状态为 暂停后点击播放按钮 状态 currentMusicChannel = currentMusicSound.play(currentMusicPosition); } isplaying=true; }else{ //暂停 //此状态为 播放过程中点击 暂停按钮 状态 currentMusicPosition = currentMusicChannel.position;//记录暂停位置 currentMusicChannel.stop();//暂停 isplaying=false; } //currentMusicChannel.addEventListener(Event.SOUND_COMPLETE,autoPlayNext);//自动播放下一首 } /** * 自动播放下一首 和 next按钮采用同样的方式吧 * @param event * */ protected function autoPlayNext(event:Event):void{

//过滤参数问题 getMusicItem(); if(currentMusicSound!=null&¤tMusicChannel!=null){ currentMusicChannel.stop();//暂停 } clearPar(); currentMusicUrlString=musicItem.uri; currentMusicUrlRequest =new URLRequest(currentMusicUrlString); currentMusicSound = new Sound(); currentMusicSound.load(currentMusicUrlRequest); currentMusicSound.addEventListener(Event.COMPLETE,load_CompleteHandler); playAndPause.selected=true; isplaying =true; currentMusicChannel = currentMusicSound.play();//开始播放 timer_GetCurrentPositionHandler();//同步更新已经播放的时间的计时器 currentMusicChannel.addEventListener(Event.SOUND_COMPLETE,autoPlayNext);//自动播放下一首 } /** * 正在播放的歌曲的总时长 */ private var len:int; /** * 文件加载完成 能读取到音乐的总时长 * @param event * */ protected function load_CompleteHandler(event:Event):void{ len = currentMusicSound.length; } /** * 同步更新已经播放的时间的计时器 * */ protected function timer_GetCurrentPositionHandler():void{ var clock:Timer = new Timer(100,int(len/1000/60*10));//每0.1秒更新一次 clock.start(); clock.addEventListener(TimerEvent.TIMER,showTime); } /** * 显示已经播放的总时间 * @param event * */ protected function showTime(event:Event):void{ playingProcess.maximum = int(len/1000)*10;//最大值 playingProcess.value = int(currentMusicPosition/1000*10); //当前值 currentMusicPosition = currentMusicChannel.position; } /** * 播放进度条 可以拖动 * @param event * */ protected function playingProcess_changeHandler(event:Event):void{ if(currentMusicChannel!=null){ currentMusicPosition = playingProcess.value*1000/10;//当前音乐播放进度 currentMusicChannel.stop(); currentMusicChannel = currentMusicSound.play(currentMusicPosition); isplaying=true; playAndPause.selected=true; currentMusicChannel.addEventListener(Event.SOUND_COMPLETE,autoPlayNext);//自动播放下一首 }else{ playingProcess.value=0; } } /** * 清除参数 * currentMusicSound = null; * currentMusicChannel = null; * currentMusicPosition = 0; * */ private function clearPar():void{ currentMusicSound = null; currentMusicChannel = null; currentMusicPosition = 0; } ]]>