微信小程序自定义导航栏

"window":{
 "navigationStyle": "custom"
},

 /**
 * 当小程序初始化完成时，会触发 onLaunch（全局只触发一次）
 */
 onLaunch: function () {
 wx.getSystemInfo({
  success: res => {
  //导航高度
 
  this.globalData.navHeight = res.statusBarHeight+46;
  this.navH = res.statusBarHeight;
  this.platform = res.platform;
  }
 })
 },
this.globalData.navHeight这个变量是在app.js中定义的：

 globalData: {
 isPlayMusic :false,
 doubanBase: "http://t.yushu.im",
 navHeight:0
 },

 onLoad: function (options) {
 this.setData({
  navH: App.globalData.navHeight
 })
 },

var App = getApp();

 data: {
 navH:0
 },

<view>
 <view class='more_main' style='height:{{navH}}px'>
 <view class='title_contanier'>
 <text class="more_title">更多</text>
 </view>
 </view>
</view>

.more_title{
 margin:0 auto;
 margin-top: 75rpx;
 text-align:center;
 font-size: 32rpx;
 }
.title_contanier{
 display: flex;
 flex-direction: row;
}
.more_main{
 width: 100%;
 background-color: greenyellow;
}