微信小程序tab和swiper结合效果的实现

<scroll-view>  <block>  <view>  {{item}}  </view> </block> <view></view></scroll-view><view></view><swiper> <swiper-item>  <view>tab0</view> </swiper-item>  <swiper-item>  <view>tab1</view> </swiper-item>  <swiper-item>  <view>tab2</view> </swiper-item>  <swiper-item>  <view>tab3</view> </swiper-item> <swiper-item>  <view>tab4</view> </swiper-item>  <swiper-item>  <view>tab5</view> </swiper-item>  <swiper-item>  <view>tab6</view> </swiper-item></swiper>

page { height: 100%;}view , scroll-view{ padding: 0px; margin: 0px;}.weui-navbar{ width: 100%; position: fixed; border-bottom: 1px solid #00bba1; box-sizing: border-box; white-space: nowrap;  z-index: 100; background: white;}.rec{ width: 100%; height: 7%;}.weui-navbar .default-item{ /*width:25%;*/ display: inline-block; text-align: center; font-size: 32rpx; box-sizing: border-box; height: 7%; padding-bottom: 20rpx;}.weui-navbar .item_on{ color: #00bba1;}.weui-navbar-slider{ position: absolute; width: 160rpx; height: 2px; content:""; background: #00bba1; bottom: 0px; left: 12.5rpx; transition: transform .3s;}.swiper-box{ height: 900px; border-bottom: 1px solid #d1d1d1;}.swiper-box .swiper-item{ text-align: center; padding-top: 200rpx; height: 100%;}

//index.js//获取应用实例var app = getApp();var mtabW;Page({ data: { tabs:["综合与绘画","艺术喷漆","泥塑","纸面绘画","布面绘画","中国油画","水墨画"], activeIndex:0, slideOffset:0, tabW:0 }, //事件处理函数 onLoad: function () {  var that = this;  wx.getSystemInfo({   success: function (res) {    mtabW = res.windowWidth / 4; //设置tab的宽度    that.setData({     tabW:mtabW    })   }  }); }, bindViewTap: function() { wx.navigateTo({  url: '../logs/logs' }) }, tabClick:function(e){  var that = this;  var idIndex = e.currentTarget.id;  var offsetW = e.currentTarget.offsetLeft; //2种方法获取距离文档左边有多少距离  this.setData({  activeIndex:idIndex,  slideOffset:offsetW  }); }, bindChange:function(e){  var current = e.detail.current;  if((current+1)%4 == 0){  }  var offsetW = current * mtabW; //2种方法获取距离文档左边有多少距离  this.setData({   activeIndex:current,   slideOffset:offsetW  }); }})