private function displayCameraSelf():void
{
    //显示自己的视频
    myCamera = Camera.getCamera();
    if(myCamera != null)
    {
        this.twoVideo.attachCamera(myCamera);
    }
    else
    {
        Alert.okLabel="确 定";
        Alert.show("没检测到视频摄像头！","系统提示");
    }
}

private function onLoginRusult(evt:ResultEvent):void
{
    if(evt.result != null)
    {
        //显示自己的视频
        displayCameraSelf();
        
        //连接FMS服务器发布自己的视频流
        publishNc = new NetConnection();
        publishNc.connect("rtmp://localhost/ChatRoom");
        publishNc.addEventListener(NetStatusEvent.NET_STATUS,onNetStatusHandler);
        publishNc.client = this;
        
        playNc = new NetConnection();
        playNc.connect("rtmp://localhost/ChatRoom");
        playNc.addEventListener(NetStatusEvent.NET_STATUS,onPlayStatusHandler);
        playNc.client = this;
        
        so = SharedObject.getRemote("ChatSO",publishNc.uri,false);
        so.addEventListener(SyncEvent.SYNC,onSyncHandler);    
        so.connect(publishNc);        
        so.client = this;                
        
        userSO = SharedObject.getRemote("UserSO",publishNc.uri,false);
        userSO.connect(publishNc);
        userSO.client = this;
        
        
        UserName = myUserName = evt.result.UserName;
        NickName = myNickName = evt.result.NickName;
        
        //将当前用户添加到共享对象
        var uarray:ArrayCollection;
        var o:Object = new Object();
        o.UserName=myUserName;
        o.NickName=myNickName;
        
        if(userSO.data.UserList == null)
        {
            uarray = new ArrayCollection();
        }
        else
        {
            uarray = userSO.data.UserList as ArrayCollection;
    
        }
        var temp:ArrayCollection = new ArrayCollection();
        convertArrayCollection(temp,uarray);
        temp.addItem(o);
        userSO.setProperty("UserList",temp);
    
        this.loginPanel.visible = false;
        this.chatRoomPanel.visible=true;
        ChatRoomViewStack.selectedChild = chatRoomPanel;
    }
    else
    {
        Alert.okLabel="确 定";
        Alert.show("登录失败！","系统提示");
    }
}

private function onNetStatusHandler(evt:NetStatusEvent):void
{
    if(evt.info.code == "NetConnection.Connect.Success")
    {
        //连接成功则发布自己的流到FMS
        publishNs = new NetStream(publishNc);
        publishNs.attachAudio(myMic);
        publishNs.attachCamera(myCamera);
        publishNs.client=this;
        //以用户名作为视频流名,直接通过用户名连接对方的流
        publishNs.publish(myUserName,"live");    
    }
}

private function onPlayStatusHandler(evt:NetStatusEvent):void
{
    if(evt.info.code == "NetConnection.Connect.Success")
    {
        playNs = new NetStream(playNc);
        var v:Video = new Video();
        v.width = 320;
        v.height= 240;
        v.attachNetStream(playNs);
        playNs.play(UserName,"live");
        this.oneVideo.addChild(v);
    }
}

/**
 * 发送聊天消息
 * */
private function sendMessage(evt:MouseEvent):void
{
    var tempCollection:ArrayCollection = new ArrayCollection();
    if(so.data.msgCollection != null)
    {
        convertArrayCollection(tempCollection,so.data.msgCollection as ArrayCollection);
    }
    var msg:Message = new Message();
    msg.NickName = myNickName;
    msg.Context = this.txtMessage.text;
    tempCollection.addItem(msg);
    
    //更新远程共享对象中的属性值
    so.setProperty("msgCollection",tempCollection);
    
    this.txtMessage.text="";
}

private function onSyncHandler(evt:SyncEvent):void
{
    if(so.data.msgCollection != null)
    {
        //首次登录进来异步获取消息的时候不显示登录之前的消息
        if(isFirstLogin)
        {
            so.setProperty("msgCollection",null);
            isFirstLogin = false;
        }
        else
        {
            var tempCollection:ArrayCollection = new ArrayCollection();
            convertArrayCollection(tempCollection,so.data.msgCollection as ArrayCollection);
            
            this.displayMessage.text="";
            for(var index:int=0;index<tempCollection.length;index++)
            {
                var message:Object = tempCollection.getItemAt(index);
                var displayMessage:String = message.NickName+"说:"+message.Context;
                this.displayMessage.text += displayMessage + "\n";
            }
        }
    }
    this.displayMessage.verticalScrollPosition=this.displayMessage.maxVerticalScrollPosition;
}

private function init():void
{
    nc = new NetConnection();
    nc.connect("rtmp://localhost/ChatRoom");
    nc.addEventListener(NetStatusEvent.NET_STATUS,onNetStatusHandler);
    nc.client = this;
    
    so = SharedObject.getRemote("UserSO");
    so.addEventListener(SyncEvent.SYNC,onSyncHandler);
    so.connect(nc);
    so.client = this;
}

private function onNetStatusHandler(event:NetStatusEvent):void
{
    if(event.info.code=="NetConnection.Connect.Success")
    {
        if(so.data.UserList!=null)
        {
            var uarray:Array = so.data.UserList as Array;
            this.userTree.dataProvider = uarray;
        }
    }
}

private function onSyncHandler(event:SyncEvent):void
{
    if(so.data.UserList!=null)
    {
        var uarray:Array = so.data.UserList as Array;
        this.userTree.dataProvider = uarray;
    }
}