微信小程序scroll-view仿拼多多横向滑动滚动条

本文实例为大家分享了微信小程序横向滑动滚动条的具体代码，供大家参考，具体内容如下

效果图

实现代码

index.wxml

<scroll-view scroll-x=\"true\" class=\"scroll-view-x\" style=\"padding-top:10rpx\" scroll-with-animation=\"true\" wx:if=\"{{tlist[currentTab].secondList}}\" scroll-left=\'0\' bindscroll=\"getleft\">
  <!--内容区域-->
  <view>
   <view class=\"navigator_second\" wx:for=\"{{tlist[currentTab].secondList}}\" wx:for-item=\"childItem\" bindtap=\"getProductList\" data-id=\"{{childItem.id}}\">
   <image class=\"navigator_icon\" src=\"{{childItem.icon}}\"></image>
   <text class=\"navigator_text\">{{childItem.name}}</text>
   </view>
  </view>
  <view wx:if=\"{{tlist[currentTab].thirdList}}\">
   <view class=\"navigator_second\" wx:for=\"{{tlist[currentTab].thirdList}}\" wx:for-item=\"childItem\" data-id=\"{{childItem.id}}\" bindtap=\"getProductList\">
   <image class=\"navigator_icon\" src=\"{{childItem.icon}}\" ></image>
   <text class=\"navigator_text\">{{childItem.name}}</text>
   </view>
  </view>
  </scroll-view >
  <!--滚动条部分-->
  <view wx:if=\"{{slideShow}}\" class=\"slide\">
  <view class=\'slide-bar\' >
   <view class=\"slide-show\" style=\"width:{{slideWidth}}rpx; margin-left:{{slideLeft<=1 ? 0 : slideLeft+\'rpx\'}};\"></view>
  </view>
  </view>

index.js

//获取应用实例
var app = getApp();
Page({
 data: {
 navigate_type:\'\',//分类类型，是否包含二级分类
 slideWidth:\'\',//滑块宽
 slideLeft:0 ,//滑块位置
 totalLength:\'\',//当前滚动列表总长
 slideShow:false,
 slideRatio:\'\'
 },
 onLoad: function () {
 var self = this ;
 var systemInfo = wx.getSystemInfoSync() ;
 self.setData({
  list: _list,
  windowHeight: app.globalData.navigate_type == 1 ? systemInfo.windowHeight : systemInfo.windowHeight - 35,
  windowWidth: systemInfo.windowWidth,
  navigate_type: app.globalData.navigate_type
 })
 //计算比例
 self.getRatio();
 },
 //根据分类获取比例
 getRatio(){
 var self = this ;
 if (!self.data.tlist[self.data.currentTab].secondList || self.data.tlist[self.data.currentTab].secondList.length<=5){
  this.setData({
  slideShow:false
  })
 }else{
  var _totalLength = self.data.tlist[self.data.currentTab].secondList.length * 150; //分类列表总长度
  var _ratio = 230 / _totalLength * (750 / this.data.windowWidth); //滚动列表长度与滑条长度比例
  var _showLength = 750 / _totalLength * 230; //当前显示红色滑条的长度(保留两位小数)
  this.setData({
  slideWidth: _showLength,
  totalLength: _totalLength,
  slideShow: true,
  slideRatio:_ratio
  })
 }
 } ,
 //slideLeft动态变化
 getleft(e){
 this.setData({
  slideLeft: e.detail.scrollLeft * this.data.slideRatio
 })
 } 
})

index.wxss

.scroll-view-x{
 background-color: #fff;
 white-space: nowrap;
}
.navigator_second{
 width:150rpx;
 text-align:center;
 display:inline-block;
 height:115rpx;
}
.navigator_icon{
 width:60rpx;
 height:60rpx;
}
.navigator_text{
 display:block;
 width:100%;
 font-size:24rpx
}
.slide{
 height:30rpx;
 background:#fff;
 with:100%;
 padding:14rpx 0 5rpx 0
}
.slide .slide-bar{
 width:230rpx;
 margin:0 auto;
 height:1.5px;
 background:#eee;
}
.slide .slide-bar .slide-show{
 height:100%;
 background-color:#ff6969;

}

项目地址：微信小程序横向滑动滚动条

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。