微信小程序tab切换，滑动点击切换后获取到内容怎么上拉加载更多下拉刷新呢？

<view class='swiper-tab'>

  <view class="weui-navbar" style="position:fixed;background:#fff">

    <block wx:for="{{tabName}}">

      <view class="swiper-tab-item {{currentTab == index?'active':''}}" data-current="{{index}}" data-type-id="{{item.id}}" bindtap="clickTab">{{item.name}}</view>

    </block>

  </view>

</view>



<swiper current='{{currentTab}}' duration='300' style='height:{{winHeight}}rpx' bindchange='swiperTab'>

  <swiper-item wx:for="{{tabName}}">

    <scroll-view scroll-y="true" class="scoll-h">

      <navigator data-id="{{item.id}}" url='../info/info?id={{data.id}}' wx:for="{{typeList}}" wx:for-item="data">

        <view class='newstype-item'>

          <image src='{{data.litpic}}' class='pic' mode='aspectFill'></image>

          <view class='newstype-item-right'>

            <text class='newstype-item-maintext'>{{data.title}}</text>

            <view class='newstype-item-bottom'>

              <text class='newstype-item-smalltext'>{{data.time}}</text>

              <view class='newstype-item-bottom-right'>

                <image src="/images/icon_look.png" style="width:34rpx;height:34rpx"></image>

                <view class='newstype-item-smalltext' style="margin-left:10rpx;  font-size: 20rpx; margin-bottom:1rpx">{{data.click}}</view>

              </view>

            </view>

          </view>

        </view>

      </navigator>

    </scroll-view>

  </swiper-item>



</swiper>



<view class="weui-loadmore" hidden="{{!hasMoreData}}">

    <view class="weui-loading"></view>

    <view class="weui-loadmore__tips">正在加载</view>

  </view>

  <view class='data-bottom' hidden='{{!bottomTitle}}'>{{title}}</view>

var app = getApp();

var url = app.d.ceshiUrl + 'category';

var listUrl = app.d.ceshiUrl + 'catList';

var page = 1;

var page_size = 6;

Page({



  /**

   * 页面的初始数据

   */

  data: {

    //tabName: ['中医药膳', '中医方剂', '中医养生', '中医常识'],

    currentTab: 0,

    typeList: [],

    hasMoreData: true,

    bottomTitle: false

  },

  //滑动切换

  swiperTab: function(e) {

    //console.log(e.detail.current)

    //console.log(this.data.tabName[e.detail.current].id)

    var that = this

    var current = e.detail.current

    var typeid = that.data.tabName[current].id



    //console.log(typeid)

    this.setData({

      currentTab: e.detail.current

    })

    wx.request({

      url: listUrl,

      method: 'post',

      data: {

        cat_id: typeid,

        page: page,

        page_size: page_size

      },

      header: {

        "Content-Type": "application/json"

      },

      success: function(res) {

        //console.log(res);

        if (res.data.status === 1) {

          that.setData({

            typeList: res.data.list,

            hasMoreData: true

          })

        }

      }

    })

  },

  //点击切换

  clickTab: function(e) {

    var that = this;

    //console.log(e)

    const currentTab = e.target.dataset.current;

    const typeid = e.target.dataset.typeId;

    if (that.data.current === currentTab) {

      return false;

    } else {

      that.setData({

        currentTab: currentTab

      })

      console.log(currentTab);

      wx.request({

        url: listUrl,

        method: 'post',

        data: {

          cat_id: typeid,

          page: page,

          page_size: page_size

        },

        header: {

          "Content-Type": "application/json"

        },

        success: function(res) {

          //console.log(res);

          if (res.data.status === 1) {

            that.setData({

              typeList: res.data.list,

              hasMoreData: true

            })

          }

        }

      })

    }

  },

  /**

   * 生命周期函数--监听页面加载

   */

  onLoad: function(options) {

    var that = this

    //高度自适应

    wx.getSystemInfo({

      success: function(res) {

        var clientHeight = res.windowHeight,

          clientWidth = res.windowWidth,

          rpxR = 750 / clientWidth;

        var calc = clientHeight * rpxR + 80;

        that.setData({

          winHeight: calc

        })

      },

    })

    wx.request({

      url: url,

      method: 'post',

      data: {

        page: page,

        page_size: page_size

      },

      header: {

        "Content-Type": "application/json"

      },

      success: function(res) {

        console.log(res)

        if (res.data.status === 1) {

          that.setData({

            tabName: res.data.category,

            typeList: res.data.list,

            hasMoreData: true

          })

        } else {

          wx.showToast({

            title: res.data.error,

            duration: 2000

          })

        }

        that.setData({

          currentTab: 0

        })

      },

      fail: function() {

        wx.showToast({

          title: '网络异常',

          duration: 2000

        })

      }

    })

  },

  /**

   * 页面相关事件处理函数--监听用户下拉动作

   */

  onPullDownRefresh: function() {



  },



  /**

   * 页面上拉触底事件的处理函数

   */

  onReachBottom: function() {},

})