如何在微信小程序中使用骨架屏的步骤

<!--骨架屏 -->

<view class="sort" wx:if="{{showSkeleton}}">

<scroll-view scroll-y="true" class="sortlist" style="height:{{contentHeight-170}}rpx">

<view class="sort-l" >

<view class="sort-lgj"></view>

</view>

<view class="sort-l" >

<view class="sort-lgj"></view>

</view>

<view class="sort-l" >

<view class="sort-lgj"></view>

</view>

<view class="sort-l" >

<view class="sort-lgj"></view>

</view>

<view class="sort-l" >

<view class="sort-lgj"></view>

</view>

<view class="sort-l" >

<view class="sort-lgj"></view>

</view>

</scroll-view>

</view >

<view class="sort" wx:else>

  这里是原来的页面

</view >

onLoad: function(options) {

  var that = this

  wx.request({

    url:'xxxx', //请求地址

    data: { //发送给后台的数据

      xxxx: xxxx

    },

    header: { //请求头

    "Content-Type": "applciation/json"

    },

    method: "GET",

    success: function(res) {

      that.setData({

        goodslist: data

      })

      that.setData({

        // 数据渲染后

        showSkeleton: false

      })

    },

    fail: function(err) {    

    }

  })
}