carInsightSystem_wxapp/pages/varComm/index.js

// index.js

Page({
    data: {
        active: 0,
        showChart: true,
        wshow: true,
    },
    onShow() {
        if (!wx.getStorageSync('token')) {
            wx.navigateTo({
                url: "/pages/mine/pages/bindUser/index?isHome=1",
            })
        } else {
            this.getTabBar().init();
            if (this.data.active == 2 || this.data.active == 3 ||this.data.active == 1) {
                this.reLoad()
            }
        }

    },
    changeTab(val) {
        let n = val.detail.index;
        this.setData({
            active: n
        })
    },
    reLoad() {
        this.setData({
            wshow: false
        })
        this.setData({
            wshow: true
        })
    }
});