// components/navigator/index.js Component({ /** * 组件的属性列表 */ properties: { title: String, canBack: Boolean, }, /** * 组件的初始数据 */ data: { }, lifetimes: { attached: function() { const that = this; wx.getSystemInfo({ success: function (res) { that.setData({ statusBarHeight : res.statusBarHeight, navBarHeight : res.statusBarHeight , // 顶部导航栏高度为 44px jiaonangheight: wx.getMenuButtonBoundingClientRect().height, // 胶囊高度 jiaonangwidth:wx.getMenuButtonBoundingClientRect().width, }) }, }) } }, /** * 组件的方法列表 */ methods: { back() { // this.triggerEvent("back") wx.navigateBack(); } } })