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

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