微信小程序实现下拉刷新和轮播图效果

本文实例为大家分享了微信小程序实现下拉刷新和轮播图展示的具体代码,供大家参考,具体内容如下

先上图,再解释

wxml页面代码:

<scroll-view scroll-y="true" bindscrolltolower="lower" style="height:{{screenH}}px" class="scroll">
<swiper autoplay="{{autoplay}}" interval="{{interval}}" duration="{{duration}}" class="swiper-box">
  <block wx:for="{{imgUrls}}">
   <swiper-item>
     <image src="{{item}}" class="slide-img" style="height:100%"></image>
   </swiper-item>
  </block>
</swiper>
<view class="text-food">美食篇</view>
<view class="list-box clear" wx:for="{{list}}">
  <image src="{{item.pic}}" class="img-food fl"></image>
  <view class="fl detail-view">
    <text class="text-name">{{item.name}}</text>
    <view class="use-text">用餐人数<text>{{item.cookingtime}}</text></view>
    <view class="use-text overflow">菜谱说明:<text>{{item.content}}</text></view>
  </view>
</view>
<view class="loading-view">
 <image src="../../img/loading.gif" class="loading-img" wx:if="{{hasMore}}"></image>
 <text wx:else class="no-data">没有更多内容了</text>
</view>
</scroll-view>

wxss样式:

.fl {
  float: left;
}
.fr {
  float: right;
}
.clear:after {
  content: '';
  display: block;
  clear: both;
}
view,scroll-view,swiper{
 margin: 0px;
 padding: 0px;
 box-sizing: border-box;
}
.overflow{
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.scroll{
  wwidth: 100%;
}
.scroll .slide-img{
  width: 100%;
  display: block;
}
.scroll .text-food{
  color: #666;
  font-size: 30rpx;
  margin: 15rpx 0rpx 20rpx 1%;
  height: 30rpx;
  border-left: 2px solid rgb(0, 187, 161);
  padding-left: 10rpx;
  line-height: 30rpx;
}
.scroll .list-box{
  padding: 0px 0px 20rpx 1%;
  margin: 20rpx 0px;
  border-bottom: 1px solid #d1d1d1;
}
.list-box .img-food{
  width: 180rpx;
  height: 180rpx;
}
.list-box .detail-view{
  width: calc(100% - 180rpx);
  padding-left: 4%;
  height: 180rpx;
  padding-top: 20rpx;
}
.detail-view .text-name{
  color: rgb(0, 187, 161);
  font-size: 32rpx;
}
.detail-view .use-text{
  color: #666;
  font-size: 28rpx;
  margin: 15rpx 0px;
}
.loading-view{
  text-align: center;
  margin-bottom: 40rpx;
}
.loading-view .loading-img{
  width: 32px;
  height: 32px;
}
.loading-view .no-data{
  color: #666;
  font-size: 28rpx;
}

js代码:

//fresh.js
var network_util = require('../../utils/network_util.js');
//获取应用实例
var app = getApp()
Page({
 data: {
  screenH:0,
  autoplay:true,
  duration:500,
  interval:3000,
  hasMore:true,
  imgUrls:[
   '../../img/test1.jpg',
   '../../img/test2.jpg',
   '../../img/test3.jpg',
  ],
  pageNum:10,
  list:[]
 },
 //事件处理函数
 bindViewTap: function() {
  wx.navigateTo({
   url: '../logs/logs'
  })
 },
 onLoad: function () {
  console.log('onLoad');
  var that = this;
  wx.getSystemInfo({
   success: function(res) {
     that.setData({
      screenH:res.windowHeight * 1.5
     });
     console.log(that.data.screenH+"====-------------");
   }
  });
  var url = 'https://api.jisuapi.com/recipe/search?keyword=鸡肉&num=this.data.pageNum&appkey=(ps:你的appkey)';
  network_util._get(url,function(res){
     that.setData({
      list:res.data.result.list
     });
     console.log("成功请求=============================");
  },function(){

  });
  //调用应用实例的方法获取全局数据
  app.getUserInfo(function(userInfo){
   //更新数据
   that.setData({
    userInfo:userInfo
   })
  })
 },
 lower:function(){
  console.log("滑到底部了===================");
   var pageNum = this.data.pageNum + 5;
   var that = this;
   if(!that.data.hasMore || pageNum == 40){
     that.setData({
      hasMore:false
    });
    return;

   }

   console.log(pageNum+"页数==========================");
   var url = 'https://api.jisuapi.com/recipe/search?keyword=白菜&num='+(pageNum)+'&appkey=(ps:你的appkey)';
   network_util._get(url,function(res){
     that.setData({
      list:that.data.list.concat(res.data.result.list),
      pageNum:pageNum
     });
     console.log("成功请求2=============================");
   },function(){

   });
   console.log("---------------------------")
 },

})


      

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