epmet-work-mp/components/Head/index.js

const App = getApp();
Component({
    properties: {
        isBack: {
            type: Boolean,
            default: false
        },
        text: {
            type: String,
            default: ""
        }
    },

    data: {
        statusHeight: 0,
        navigationHeight: 0,
        agencyName: '',
        leftWidth: 0,
        iconWidth: 0,
    },
    lifetimes: {
        ready: function () {
            this.setData({
                statusHeight: App.globalData.deviceInfo.statusHeight,
                navigationHeight: App.globalData.deviceInfo.navigationHeight,
                agencyName: App.globalData.user.agencyName,
            })
            const menuButton = wx.getMenuButtonBoundingClientRect();
            console.log(menuButton)
            this.setData({
                    leftWidth: menuButton.left,
                    iconWidth: menuButton.width,
            })
        },
    },

    methods: {
        back() {
            wx.navigateBack({
                delta: 1
            })
        },
        getNavigationInfo: function () {
            var that = this;
            wx.getSystemInfo({
                success (res) {

                }
            })
        }
    }
});