小程序下拉刷新页面

.json

  "enablePullDownRefresh": true,  //开启下拉刷新
  "backgroundTextStyle": "dark"   //下拉刷新颜色

.js

    onPullDownRefresh: function () {
    wx.showNavigationBarLoading() //在标题栏中显示加载
    //模拟加载
    setTimeout(function () {
      // complete
      wx.hideNavigationBarLoading() //完成停止加载
      wx.stopPullDownRefresh() //停止下拉刷新
    }, 1500);
    if (getCurrentPages().length != 0) {
      getCurrentPages()[getCurrentPages().length - 1].onLoad()
    }
  },