bwj_wechat/app.js

import {
    ApiModel
} from "./utils/api";
const _Http = new ApiModel();
App({
    onLaunch() {
        /* 计算tabbar+iphone安全距离  tabbar页面+100rpx*/
        let safeAreaBottom = 0,
            capsule = wx.getMenuButtonBoundingClientRect(),
            height = 200,
            that = this;
        //获取轮播图
        this.getBanner();
        wx.getSystemInfo({
            success(res) {
                //计算底部安全距离高度
                safeAreaBottom += res.screenHeight - res.safeArea.bottom;
                //计算自定义导航的高度
                height = capsule.height + res.statusBarHeight + (capsule.top - res.statusBarHeight) + 8;
                that.globalData.safeAreaBottom = safeAreaBottom;
                //判断是否为平板
                if (res.model.slice(0, 4) == "iPad") return that.globalData.myNavBorHeight = height;
                that.globalData.myNavBorHeight = height * 2;
            }
        })
    },
    getBanner() {
        //轮播图
        _Http.basic({
            "classname": "publicmethod.bannermag.bannermag",
            "method": "query_bannerlocationlist",
            "content": {
                "siteid": "BWJ",
                "fclienttype": "MOBILE"
            }
        }, false).then(res => {
            if (res.msg != '成功') {
                this.globalData.count += 1;
                if (this.globalData.count < 5) setTimeout(() => this.getBanner(), 200)
                return;
            }
            wx.setStorageSync('bannerDataList', res.data)
        })
    },
    initSocket() {
        let that = this;
        this.globalData.SocketTask = wx.connectSocket({
            url: 'wss://www.buwanjia.com/bwj/webSocket/' + wx.getStorageSync('userData').token,
            complete: (res) => {
                console.log(res)
            }
        })
        this.globalData.SocketTask.onOpen(function (res) {
            console.log('WebSocket连接已打开！readyState=' + that.globalData.SocketTask.readyState);
            that.globalData.socketEstablish = true;
            /* var openid = wx.getStorageSync('openid')
            wx.sendSocketMessage({
              data: openid
            }); */
        })
        this.globalData.SocketTask.onMessage(function (res) {
            that.globalData.callback(res)
        })
        this.globalData.SocketTask.onError(function (res) {
            console.log('readyState=' + that.globalData.SocketTask.readyState)
            setTimeout(() => {
                that.initSocket()
            }, 1000)
        })
        this.globalData.SocketTask.onClose(function (res) {
            console.log('WebSocket连接已关闭！readyState=' + that.globalData.SocketTask.readyState)
            if (that.globalData.socketEstablish == false) {
                setTimeout(() => {
                    that.initSocket()
                }, 1000)
            } else {
                that.globalData.socketEstablish = false;
            }
        })
    },
    globalData: {
        myNavBorHeight: 0, //自定义头部导航高度
        safeAreaBottom: 0, //底部安全距离
        msgFcount: "", //徽标数量
        count: 0, //banner 请求次数
        socketEstablish: false, //是否已经建立socket
        SocketTask: '',
        callback: function () {},
    }
})