请问SerchBar如何实现下拉刷新？

[lyndon1115]

Do you want to request a feature or report a bug (建议还是bug) ?
建议
What is the current behavior? (现有状况)
let currentPage = null
let totalPage = null
` search: function (value) {
if(!currentPage) currentPage = 1;
searchValue = value;

  return new Promise((resolve, reject) => {
      //setTimeout(() => {
          wx.request({
            url: getApp().data.basePath + '/search-' + value + '-1-' + currentPage + '.htm',
            success: (data) => {
              console.log('search', data.data);
              totalPage = data.data.message.totalpage;
              console.log('search searchResultList before', searchResultList);
              console.log('search searchResultList threadlist', searchResultList);
              if(searchResultList)
                searchResultList = searchResultList.concat(data.data.message.threadlist);
              else searchResultList = data.data.message.threadlist;
              console.log('search searchResultList after', searchResultList);
              resolve(searchResultList)
            }
          })
     // }, 200)
  })

},
onReachBottom () {
console.log('onReachBottom currentPage ', currentPage);
console.log('onReachBottom totalPage ', totalPage);
var that = this;
if (currentPage && totalPage) {
if( currentPage < totalPage){
currentPage += currentPage;
that.search.then(that.search(searchValue));
}
}`
搜索结果分页，第一次搜索结果为前10，上拉（onReachBottom）以后出发请求第二页搜索结果，然后追加展示。但是现在追加结果没有反应。
What is the expected behavior? （应有状况）
第二页搜索结果追加到搜索结果列表。
Which versions of React-weui, weui, and which OS and device are affected by this issue? (React-weui版本 weui版本 机型和系统)
全机型。