今天折腾了大半天,总算搞出了一个功能简单的视频播放器,可以向公司领导交差了 :)
步骤:
1.Flash CS4 中 先拖一个"FLVPlayback"组件到舞台上
注:FLVPlayback本身已经具备了flv播放的基本功能,简单设置下属性就能播放视频了
2.加载xml数据源
xml数据源格式如下:
<?xml version="1.0" encoding="utf-8"?> <data> <item flv="flv地址1" photo="缩略图1" url="点击路径1" name="名称1"></item> <item flv="flv地址2" photo="缩略图2" url="点击路径2" name="名称2"></item> ... </data>
ActionScript加载XML的核心代码:
var _xml:XML ;//声明一个XML类型的变量,用于后面接收数据 var _urlReq:URLRequest = new URLRequest(); _urlReq.url="xml文件地址"; var _loader:URLLoader=new URLLoader(_urlReq);//(异步)开始加载xml _loader.addEventListener(Event.COMPLETE,loadCompleted);//配置加载完成后的回调函数 //加载完成后的处理函数 function loadCompleted(e:Event):void { _xml=XML(_loader.data); for each (var item in _xml.item) { trace(item.@flv + "," + item.@photo + "," + item.@url + "," + item.@name});//AS中用@来访问xml节点元素的属性 } }
3.将TileList组件与xml数据绑定起来
TileList有点类似于Silverlight中的WrapPanel,在"Flash/Flex学习笔记(2):捕获摄像头"中最下面的截图列表就是TileList组件的应用,关于它的使用不重复贴代码了
至于tileList与xml的绑定,主要是通过DataProvider来完成
关键As3源代码:
import fl.events.ListEvent; import fl.video.VideoEvent; import fl.video.VideoProgressEvent; lblDebug.visible = false; //关闭调试 flv1.play();//先默认播放第一个 var _xml:XML ; var _urlReq:URLRequest = new URLRequest(); _urlReq.url="xml文件地址"; var _loader:URLLoader=new URLLoader(_urlReq); _loader.addEventListener(Event.COMPLETE,loadCompleted); var _dp:DataProvider = new DataProvider(); var _currentIndex:uint=0; function loadCompleted(e:Event):void { _xml=XML(_loader.data); for each (var item in _xml.item) { _dp.addItem({flv:item.@flv,source:item.@photo,url:item.@url,name:item.@name}); } if (_dp.length>0) { playflv(_currentIndex); flv1.addEventListener(VideoEvent.COMPLETE,playCompleted); flv1.addEventListener(VideoEvent.BUFFERING_STATE_ENTERED,buffered); flv1.addEventListener(VideoEvent.STOPPED_STATE_ENTERED,stopEntered); flv1.addEventListener(VideoEvent.PAUSED_STATE_ENTERED,pauseEntered); flv1.addEventListener(VideoEvent.PLAYING_STATE_ENTERED,playingEntered); flv1.addEventListener(VideoProgressEvent.PROGRESS,progressHandler); } } lst1.dataProvider=_dp; lst1.addEventListener(ListEvent.ITEM_CLICK,clickBaby); //点击宝贝时,播放对应的视频 function clickBaby(e:ListEvent) { _currentIndex=e.index; //trace(_currentIndex); playflv(_currentIndex); } //播放完成后,插放下一个 function playCompleted(e:VideoEvent) { trace("播放完成:" + e); playflv(_currentIndex + 1); } function buffered(e:VideoEvent){ /*trace("缓冲中..." + e); lblDebug.text = "缓冲中..."; */ flv1.playWhenEnoughDownloaded(); } function stopEntered(e:VideoEvent){ //trace("已停止..."); //lblDebug.text = "已停止..."; } function pauseEntered(e:VideoEvent){ //trace("已暂停..."); // lblDebug.text = "已暂停..."; pause1.visible = true; } function playingEntered(e:VideoEvent){ //trace("播放中..."); // lblDebug.text = "播放中..."; pause1.visible = false; } function progressHandler(e:VideoProgressEvent){ //trace(e); //flv1.playWhenEnoughDownloaded(); //trace("缓冲时间:" + flv1.bufferTime); //trace("flv1.buffering=" + flv1.buffering + ",flv1.paused=" + flv1.paused) if (flv1.buffering || flv1.paused){//这个地方有点问题,会使用户的点击暂停失效(目前还没找到因“网速过慢导致进入缓冲的自动暂停” 与“用户自主点击暂停”如何用代码区分) flv1.playWhenEnoughDownloaded(); } } //播放指定索引的视频 function playflv(flvIndex:uint) { //trace("flvIndex=" + flvIndex + ",_currentIndex=" + _currentIndex); if (flvIndex>=_dp.length) { flvIndex=0; } var item:Object=_dp.getItemAt(flvIndex); flv1.load(item.flv); flv1.play(); pause1.visible = false; _currentIndex=flvIndex; lst1.scrollToIndex(_currentIndex); } stop();
在线演示: