//在页面最上面定义全局变量，脚本中使用。var socketOpen = falsevar SocketTask, url//打开页面的时候执行webSocketonLoad () {    url = "wss://www.xlroader.com/wss/" + id},onShow () {    if (!socketOpen) {        this.webSocket()    }}webSocket () {    // 创建Socket    SocketTask = wx.connectSocket({        url: url,        method: 'post',        success: function(res) {            console.log('WebSocket连接创建', res)        }    })    // 监听Socket打开    SocketTask.onOpen(res => {        socketOpen = true        console.log('监听 WebSocket 连接打开事件。', res)    })    // 监听Socket发送消息    SocketTask.onMessage(res => {        console.log('发送了一条消息')        res.data = JSON.parse(res.data)        console.log(res.data)        res = res.data        if (res.msgtype == "msgcontent" && res.actid == this.data.id) {            //chatArr是聊天数据的数组，包含用户昵称和用户发送的文本信息            this.data.chatArr.push({                name: res.name,                text: res.text            })            this.setData({                chatArr: this.data.chatArr,                //每次输入内容之后更改scrollTop的值，让它滑动到最底端                scrollTop: this.data.chatArr.length * 100            })        }    })    // 监听Socket关闭    SocketTask.onClose(res => {        console.log('关闭 WebSocket 连接。')        socketOpen = false    })}//websocket创建完毕之后，就可以愉快的发送消息了，代码如下:// 发送消息onInputTap(event) {    let value = event.detail.value    let name = app.globalData.userInfo.nickName    let data = {        name: name,        text: value    }    // 如果webSocket创建    if (socketOpen) {        //  将发消息人的昵称和内容发送出去        this.sendSocketMessage(data)        this.data.chatArr.push({            name: name,            text: value        })        this.setData({            scrollTop: this.data.chatArr.length * 100,            inputValue: "",            chatArr: this.data.chatArr        })    }}，// 发送数据sendSocketMessage(msg) {    msg.id = this.data.id,    msg.memberid = app.globalData.memberid    SocketTask.send({        data: JSON.stringify(msg)    }, (res) => {        console.log(res)    })}//如果关闭页面或者关闭微信// 页面关闭onUnload() {    SocketTask.close({        reason: this.data.id    })},// 页面卸载onHide() {    SocketTask.close({        reason: this.data.id    })}/*基本的聊天模块就以上代码，然后在使直播全屏化的过程中，又发现了一个小问题，那就是直播全屏之后不是铺满屏幕的，而只占了中间一小块，后来查了下，原来是需要设置画面的方向，官方提供了orientation这个属性，orientation: "horizontal"即可设置全屏，代码如下：*/// 全屏fullScreen() {    let that = this    let fullScreenFlag = that.data.fullScreenFlag    if (fullScreenFlag) {        fullScreenFlag = false    } else {        fullScreenFlag = true    }    if (fullScreenFlag) {        //全屏        that.PlayerCtx.requestFullScreen({            success: res => {                that.setData({                    fullScreenFlag: fullScreenFlag,                    liveDirection: "horizontal"                });            }    } else {        //缩小        that.PlayerCtx.exitFullScreen({            success: res => {                that.setData({                    fullScreenFlag: fullScreenFlag,                    liveDirection: "vertical"                });            }        }    },