<!--pages/home/home.wxml-->
<view class="swiper-tab"> 
  <view class="swiper-tab-item {{currentTab==0 ? 'on' : ''}}" data-current="0" bindtap="swichNav">热门</view> 
  <view class="swiper-tab-item {{currentTab==1 ? 'on' : ''}}" data-current="1" bindtap="swichNav">关注</view> 
  <view class="swiper-tab-item {{currentTab==2 ? 'on' : ''}}" data-current="2" bindtap="swichNav">好友</view> 
</view> 

<swiper current="{{currentTab}}" class="swiper-box" duration="300" style="height:{{winHeight - 80}}px" bindchange="bindChange"> 
  <swiper-item> 
   <view>热门</view> 
  </swiper-item> 
  <swiper-item> 
   <view>关注</view> 
  </swiper-item> 
  <swiper-item> 
   <view>好友</view> 
  </swiper-item> 
</swiper> 

/* pages/home/home.wxss */
.swiper-tab{ 
  width: 100%; 
  border-bottom: 2rpx solid #eeeeee; 
  text-align: center; 
  line-height: 80rpx;} 
.swiper-tab-item{ font-size: 30rpx; 
  display: inline-block; 
  width: 33.33%; 
  color: #666666; 
} 
.on{ color: #f10b2e; 
  border-bottom: 5rpx solid #f10b2e;} 

.swiper-box{ display: block; height: 100%; width: 100%; overflow: hidden; } 
.swiper-box view{ 
  text-align: center; 
} 

// pages/home/home.js
var app = getApp()
Page({
 data: {

  winWidth: 0,
  winHeight: 0,
  // tab切换 
  currentTab: 0,
 },
 onLoad: function () {
  var that = this;


  wx.getSystemInfo({

   success: function (res) {
    that.setData({
     winWidth: res.windowWidth,
     winHeight: res.windowHeight
    });
   }

  });
 },


 bindChange: function (e) {

  var that = this;
  that.setData({ currentTab: e.detail.current });

 },

 swichNav: function (e) {

  var that = this;

  if (this.data.currentTab === e.target.dataset.current) {
   return false;
  } else {
   that.setData({
    currentTab: e.target.dataset.current
   })
  }
 }
})