<!--pages/shop/search.wxml-->
<scroll-view  scroll-y="true" style="height:{{windowHeight}}px;" bindscrolltolower="onReachBottom">

      <!-- 產(chǎn)品列表  -->
      <view class="flex-wrp">
         <block wx:for="{{items}}">
            <view  bindtap="onItemClick" class="item-box" data-iid="{{item.id}}"> 
               <image class="item-pic" src="{{item.thumb}}" mode="aspectFill"></image>
               <view class="item-info">
                  <view class='item-name'>{{item.name}}</view>
                  <view class='price-sold-box'>
                     <text class='current-price'>¥{{item.current_price}}</text>
                     <text class='item-sold'><text class='sold-title'>銷(xiāo)量</text> {{item.sold_num}}</text> 
                  </view>
               </view>
            </view> 
         </block> 
      </view>
      <view wx:if="{{pageEnd==true}}" class='scrollEnd'>已顯示所有數(shù)據(jù)...</view>
</scroll-view>

//pages/shop/public/search/search.js
/* 有BUG的JS用例 */

const app = getApp();
var page = 0;//分頁(yè)標(biāo)簽
Page({
   data: {
      pageEnd:false, //是否頁(yè)面底部
      windowHeight: app.getWH(),//應(yīng)用程序高度
      // 商品列表數(shù)組
      items:[],
   },

   /************************* 系統(tǒng)及頁(yè)面功能函數(shù)  **************************/
   //頁(yè)面加載
   onLoad: function (options) {
      //第一次加載
      this.getServerItems(page);
   },
   // 觸底函數(shù)(上拉加載更多)
   onReachBottom: function () {
      this.getServerItems(page);
   },

   /************************* 網(wǎng)絡(luò)請(qǐng)求  **************************/
   /**
    * 獲取服務(wù)器商品列表
    * @param {string} page       分頁(yè) 默認(rèn)0
    */
   getServerItems: function (pg) {
      var tar = this;
      //設(shè)置默認(rèn)值
      pg = pg ? pg : 0;
      wx.showLoading({//顯示toast
         title: '加載中...',
      });
      //網(wǎng)絡(luò)請(qǐng)求
      wx.request({
         url: "https://xxx.com/api/items/search",
         data: {page: pg},
         method: 'POST',
         header: { 'content-type': 'application/x-www-form-urlencoded' },
         success: function (res) {//網(wǎng)絡(luò)請(qǐng)求成功
            if (res.data.status == 1) {//有新數(shù)據(jù)
               var tmpArr = res.data.data;
               arr = arr.concat(tmpArr);
               tar.setData({
                  items: arr,
               });
               page++;

            } else {//res.data.status == 0 沒(méi)有新數(shù)據(jù)了
               tar.setData({
                  pageEnd:true,//顯示頁(yè)底信息
               })
            }

         },
         error: function (e) {//網(wǎng)絡(luò)請(qǐng)求失敗
            console.log(e);
         },
         complete: function(c){//網(wǎng)絡(luò)請(qǐng)求完成
            wx.hideLoading();//隱藏toast
         }
      })

   },

//pages/shop/public/search/search.js
/* 修復(fù)BUG后的JS用例 */

const app = getApp();
var page = 0;
/* ------------------------- */
var canUseReachBottom = true;//觸底函數(shù)控制變量
/* ------------------------- */
Page({
   data: {
      pageEnd:false, 
      windowHeight: app.getWH(),
       items:[],
   },
   onLoad: function (options) {
      this.getServerItems(page);
   },
   // 觸底函數(shù)(上拉加載更多)
   onReachBottom: function () {
      /* ------------------------- */
        if(!canUseReachBottom) return;//如果觸底函數(shù)不可用，則不調(diào)用網(wǎng)絡(luò)請(qǐng)求數(shù)據(jù)
      /* ------------------------- */
      this.getServerItems(page);
   },
   ServerItems: function (pg) {
      /* ------------------------- */
        canUseReachBottom = false;//觸底函數(shù)關(guān)閉
      /* ------------------------- */
      var tar = this;
      pg = pg ? pg : 0;
      wx.showLoading({
         title: '加載中...',
      });
      wx.request({
         url: "https://xxx.com/api/items/search",
         data: {page: pg},
         method: 'POST',
         header: { 'content-type': 'application/x-www-form-urlencoded' },
         success: function (res) {
            if (res.data.status == 1) {//有新數(shù)據(jù)
               var tmpArr = res.data.data;
               arr = arr.concat(tmpArr);
               tar.setData({
                  items: arr,
               });
               page++;
              /* ------------------------- */
                canUseReachBottom = true;//有新數(shù)據(jù)，觸底函數(shù)開(kāi)啟，為下次觸底調(diào)用做準(zhǔn)備
              /* ------------------------- */
            } else { 
               tar.setData({
                  pageEnd:true,
               })
            }

         },
         error: function (e) {
            console.log(e);
         },
         complete: function(c){
            wx.hideLoading();
         }
      })

   },