flex4.5 for VideoPlayer 简单应用

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
????? xmlns:s="library://ns.adobe.com/flex/spark"
????? xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="540" minHeight="405" initialize="init();"? creationComplete="initApp();">

<s:VideoPlayer id="vp" x="0" y="0" width="540" height="405" autoPlay="false" autoRewind="false"
?????? bytesLoadedChange="vp_bytesLoadedChangeHandler(event)" loop="true"
?????? mediaPlayerStateChange="vp_mediaPlayerStateChangeHandler(event)" source="{videoSource}"/>
?
?<s:SWFLoader id="btnstop1" x="1" y="1" click="btnPlay()"? source="images/bg1.swf"/>
?<s:SWFLoader id="btnplay" x="1" y="1"? click="btnbgclick()"? source="images/bg.swf" />
?
?<s:SWFLoader id="swfload" x="66" y="36" width="550" height="400" source="images/loading.swf"/>

<fx:Script>
??<![CDATA[
???import mx.controls.Alert;
???import mx.events.DragEvent;
???
???import org.osmf.events.LoadEvent;
???import org.osmf.events.MediaPlayerStateChangeEvent;
???import org.osmf.events.TimeEvent;
???
???[Bindable]?
???private var videoSource:String;???????? //媒体路径
???[Bindable]?
???private var playPosition:Number;??????????? //播放进度??
???
???private var flag:Boolean;
???protected function init():void{
????
????flag=false;
????
??
????btnplay.visible=false;
????btnstop1.visible=false;
????//videoSource="images/WebCast20100901_Video2.mp4";
?????? videoSource = parameters.videoSource;
???//Alert.show(parameters.videoSource);
?????
????? //右键信息添加
????? var contextMenu:ContextMenu=new ContextMenu();
????? contextMenu.hideBuiltInItems();
?????
????? var jinherMenuItem:ContextMenuItem=new ContextMenuItem("金和软件股份有限公司");
????? jinherMenuItem.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT,menuItemHandler);
?????
????? var versionMenuItem:ContextMenuItem=new ContextMenuItem("版本号 version 1.0");
?????
?????
????? contextMenu.customItems.push(jinherMenuItem);
????? contextMenu.customItems.push(versionMenuItem);
?????
????? //为上下文菜单设置监听
????? contextMenu.addEventListener(ContextMenuEvent.MENU_SELECT,menuHandler);

????? this.contextMenu=contextMenu;
?????
???}
???//菜单监听处理函数
???internal function menuHandler(evt:ContextMenuEvent):void{
????trace("menu");
???}
???//子菜单项监听处理函数
???internal function menuItemHandler(evt:ContextMenuEvent):void{
????//获取事件源，斌将其转化为ContextMenuItem
????var item:ContextMenuItem=ContextMenuItem(evt.currentTarget);
????var caption:String=item.caption;
????
??????navigateToURL(new URLRequest("http://www.jinher.com/"),"_blank");
?????
???}

???
???//设置初始播放位置
???protected function vp_bytesLoadedChangeHandler(event:LoadEvent):void
???{
????//Alert.show("正在下载的"+vp.videoDisplay.bytesLoaded+"总大小"+ vp.videoDisplay.bytesTotal)
????//当下载大小与总大小相同时
????if(vp.videoDisplay.bytesLoaded==vp.videoDisplay.bytesTotal)
????{
?????vp.videoDisplay.seek(parameters.playPosition);
?????swfload.visible=false;
?????btnplay.visible=true;
?????
????
????}
????else
????{
?????swfload.visible=true;?
?????btnplay.visible=true;
?????
????}
????
????//开始播放
????vp.autoPlay=true;
????//允许循环播放
????vp.loop=true;
????//播放状态
????if(vp.playing)
????{
?????swfload.visible=false;
???
?????btnplay.visible=true;
?????
?????

????} ????//暂停状态 ????else ????{ ?????btnplay.visible=false; ????? ????? ????} ????btnstop1.visible=false;? ???} ???//返回视频播放进度值 ???private function GetVideoTime():Number{ ????return vp.currentTime; ???} ???//与javascript交互用传递视频播放进度值 ???private function initApp():void{ ???? ????flash.external.ExternalInterface.addCallback("GetVideoTime",GetVideoTime); ???} ??? ???//通过判断播放状态来设定 ???protected function vp_mediaPlayerStateChangeHandler(event:MediaPlayerStateChangeEvent):void ???{ ????//如果是播放状态 ????if(vp.playing) ????{ ?????btnplay.visible=true; ?????btnstop1.visible=false; ?????swfload.visible=false; ????} ????//不是播放状态 ????else? ????{ ?????//进度加载完成 ?????if(vp.videoDisplay.bytesLoaded==vp.videoDisplay.bytesTotal) ?????{ ????? ??????//没有播放 ??????if(!vp.playing){ ???????btnplay.visible=false; ???????if(flag){ ????????btnstop1.visible=true; ???????} ???????else ???????{ ????????btnplay.visible=true; ???????} ???????swfload.visible=true; ??????? ??????} ??????//播放状态 ??????else ??????{ ???????btnplay.visible=true; ???????btnstop1.visible=false; ??????} ?????} ?????//进度没有加载完成 ?????else ?????{ ??????btnplay.visible=true; ??????btnstop1.visible=false; ?????} ????} ???? ?? ??? ???} ??????????? //播放 ???protected function btnPlay():void{ ???? ????swfload.visible=false; ????vp.videoDisplay.seek(parameters.playPosition); ????if(flag) ????{ ?????//暂停 ?????vp.stop(); ?????vp.videoDisplay.seek(vp.currentTime); ????} ????//播放 ????vp.play(); ????btnplay.visible=false; ????btnstop1.visible=true; ?????? if(!flag){btnstop1.visible=false;btnplay.visible=true;} ???? ???} ???//暂停播放 ???protected function btnstop():void{ ????flag=true; ????vp.pause(); ??? ????btnplay.visible=false; ????btnstop1.visible=true; ????swfload.visible=true; ???} ???//点击屏幕时播放与暂定动作 ???protected function btnbgclick():void{ ??? if(vp.playing) ??? { ????//暂停 ???? btnstop(); ???? ??? } ??? else ??? { ????//播放 ???? btnPlay(); ???? ??? } ???} ??? ??]]> ?</fx:Script>