<view class="swiper-tab">
  <view class="swiper-tab-list {{currentTab==0 ? ‘on‘ : ‘‘}}" data-current="0" bindtap="swichNav" data-post-id=‘0‘>推荐</view>
  <view class="swiper-tab-list {{currentTab==1 ? ‘on‘ : ‘‘}}" data-current="1" bindtap="swichNav" data-post-id=‘1‘>视频</view>
  <view class="swiper-tab-list {{currentTab==2 ? ‘on‘ : ‘‘}}" data-current="2" bindtap="swichNav" data-post-id=‘2‘>本地</view>
</view>
<swiper current="{{currentTab}}" class="swiper-box"  duration="1000rpx" style="height:{{winHeight -0}}px" bindchange="bindChange">
    <swiper-item>
    
    </swiper-item>
    <swiper-item>
    <view class="wrap">视频</view>
    </swiper-item>
    <swiper-item>
    <view class="wrap">本地</view>
    </swiper-item>
  </swiper>

.swiper-tab {
  display: flex;
  position:fixed;
  top:0;
  left:0;
  z-index:100;
  background: #fff;
  height:80rpx;
  width:800rpx;
  justify-content: space-between;
  border-bottom: 2rpx solid gainsboro;
  text-align: center;
  line-height:80rpx;
}

.swiper-tab-list {
  font-size: 30rpx;
  display: inline-block;
  width: 25%;
  color: #777;
}
.on {
  color: #7cba23;
  font-size:40rpx;
  border-bottom: 5rpx solid #7cba23;
}
.swiper-box{
 height: 100%;
 width: 100%;
 
}
.swiper-box{
  width:100%;
  margin-top:80rpx;
  font-size:32rpx;
 
}

var app=getApp()
Page({
  data: {
    currentTab: 0,
    winWidth: 0,
    winHeight: 0,
  },
  onLoad:function(option){
    var that = this;
    wx:wx.getSystemInfo({
      success: function(res) {
        that.setData({
          winWidth:res.windowWidth,
          winHeight:res.windowHeight
        })
      }
    })
  },
  //点击切换
  swichNav: function (e) {
    var that=this;
    if (this.data.currentTab === e.target.dataset.current) {
      return false;
    } else {
      that.setData({
        currentTab: e.target.dataset.current
      })
    }
  },
  //滑动切换tab
  bindChange: function (e) {
    var that = this;
    that.setData({ currentTab: e.detail.current });
  }
})