微信小程序滚动Tab如何实现左右可滑动切换的实例分析

<view>  <scroll-view>    <view>健康</view>    <view>情感</view>    <view>职场</view>    <view>育儿</view>    <view>纠纷</view>    <view>青葱</view>    <view>全部</view>    <view>其他</view>  </scroll-view>  <swiper>    <swiper-item>      <scroll-view>        <block>          <view>            <view>              <image></image>            </view>            <view>              <view>欢颜</view>              <view>知名情感博主</view>              <view>134个回答，2234人听过 </view>            </view>            <navigator>问TA</navigator>           </view>        </block>      </scroll-view>    </swiper-item>  </swiper></view>

var app = getApp();Page({  data:{    winHeight:"",//窗口高度    currentTab:0, //预设当前项的值    scrollLeft:0, //tab标题的滚动条位置    expertList:[{ //假数据      img:"avatar.png",      name:"欢顔",      tag:"知名情感博主",      answer:134,      listen:2234    }]  },  // 滚动切换标签样式  switchTab:function(e){    this.setData({      currentTab:e.detail.current    });    this.checkCor();  },  // 点击标题切换当前页时改变样式  swichNav:function(e){    var cur=e.target.dataset.current;    if(this.data.currentTaB==cur){return false;}    else{      this.setData({        currentTab:cur      })    }  },  //判断当前滚动超过一屏时，设置tab标题滚动条。  checkCor:function(){   if (this.data.currentTab>4){    this.setData({     scrollLeft:300    })   }else{    this.setData({     scrollLeft:0    })   }  },  onLoad: function() {     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-180;        console.log(calc)        that.setData( {           winHeight: calc         });       }     });  },   footerTap:app.footerTap})

.tab-h{  height: 80rpx;width: 100%; box-sizing: border-box;overflow: hidden;line-height: 80rpx;background: #F7F7F7; font-size: 16px; white-space: nowrap;position: fixed;top: 0; left: 0; z-index: 99;}.tab-item{margin:0 36rpx;display: inline-block;}.tab-item.active{color: #4675F9;position: relative;}.tab-item.active:after{ content: "";display: block;height: 8rpx;width: 52rpx;background: #4675F9;position: absolute; bottom: 0;left: 5rpx;border-radius: 16rpx;}.item-ans{ width: 100%;display: flex; flex-grow: row no-wrap;justify-content: space-between; padding: 30rpx;box-sizing: border-box; height: 180rpx;align-items: center;border-bottom: 1px solid #F2F2F2;}.avatar{width: 100rpx;height: 100rpx;position: relative;padding-right: 30rpx;}.avatar .img{width: 100%;height: 100%;}.avatar .doyen{width: 40rpx;height: 40rpx;position: absolute;bottom: -2px;right: 20rpx;}.expertInfo{font-size: 12px;flex-grow: 2;color: #B0B0B0;line-height: 1.5em;}.expertInfo .name{font-size: 16px;color:#000;margin-bottom: 6px;}.askBtn{ width: 120rpx;height: 60rpx;line-height: 60rpx;text-align: center;font-size: 14px; border-radius: 60rpx;border: 1px solid #4675F9; color:#4675F9;}.tab-content{margin-top: 80rpx;}.scoll-h{height: 100%;}