微信小程序自定义导航教程（兼容各种手机）

wx.getSystemInfo({
 success: function(res) {
 console.log(res.statusBarHeight)
 }
})

wx.getSystemInfo({
 success: function(res) {
 let titleBarHeight = 0
 if (res.model.indexOf('iPhone') !== -1) {
  titleBarHeight = 44
 } else {
  titleBarHeight = 48
 }
 that.setData({
  statusBarHeight: res.statusBarHeight,
  titleBarHeight: titleBarHeight
 });
 },
 failure() {
 that.setData({
  statusBarHeight: 0,
  titleBarHeight: 0
 });
 }
})

const app = getApp();
Component({
 properties: {
 //小程序页面的标题
 title: {
  type: String,
  default: '默认标题'
 },
 //是否展示返回和主页按钮
 showIcon: {
  type: Boolean,
  default: true
 }
 },

 data: {
 statusBarHeight: 0,
 titleBarHeight: 0,
 },

 ready: function () {
 // 因为每个页面都需要用到这连个字段，所以放到全局对象中
 if (app.globalData && app.globalData.statusBarHeight && app.globalData.titleBarHeight) {
  this.setData({
  statusBarHeight: app.globalData.statusBarHeight,
  titleBarHeight: app.globalData.titleBarHeight
  });
 } else {
  let that = this
  wx.getSystemInfo({
  success: function(res) {
   if (!app.globalData) {
   app.globalData = {}
   }
   if (res.model.indexOf('iPhone') !== -1) {
   app.globalData.titleBarHeight = 44
   } else {
   app.globalData.titleBarHeight = 48
   }
   app.globalData.statusBarHeight = res.statusBarHeight
   that.setData({
   statusBarHeight: app.globalData.statusBarHeight,
   titleBarHeight: app.globalData.titleBarHeight
   });
  },
  failure() {
   that.setData({
   statusBarHeight: 0,
   titleBarHeight: 0
   });
  }
  })
 }
 },

 methods: {
 headerBack() {
  wx.navigateBack({
  delta: 1,
  fail(e) {
   wx.switchTab({
   url: '/pages/main/main'
   })
  }
  })
 },
 headerHome() {
  wx.switchTab({
  url: '/pages/main/main'
  })
 }
 }
})

 
 
  
  
  
 
 {{title}}
 

window: { "navigationStyle": "custom", "backgroundTextStyle": "light", "navigationBarBackgroundColor": "#fff", "navigationBarTitleText": "ICY买手店", "navigationBarTextStyle": "black"}

 
 
  
  
  
 
 {{title}}