关于微信小程序实现顶部选项卡(swiper)的介绍

<!--pages/index/index.wxml--> 
<view class="swiper-tab"> 
 <view class="tab-item {{currentTab==0 ? &#39;on&#39; : &#39;&#39;}}" data-current="0" bindtap="swichNav">选项一</view> 
 <view class="tab-item {{currentTab==1 ? &#39;on&#39; : &#39;&#39;}}" data-current="1" bindtap="swichNav">选项二</view> 
 <view class="tab-item {{currentTab==2 ? &#39;on&#39; : &#39;&#39;}}" data-current="2" bindtap="swichNav">选项三</view> 
</view> 
 
<swiper current="{{currentTab}}" class="swiper" duration="300" style="height:{{winHeight - 30}}px" bindchange="bindChange"> 
 <swiper-item> 
  <view>页面一</view> 
 </swiper-item> 
 <swiper-item> 
  <view>页面二</view> 
 </swiper-item> 
 <swiper-item> 
  <view>页面三</view> 
 </swiper-item> 
</swiper>

/* pages/index/index.wxss */ 
.swiper-tab{ 
 width: 100%; 
 text-align: center; 
 line-height: 80rpx; 
 border-bottom: 1px solid #000; 
 display: flex; 
 flex-direction: row; 
 justify-content: center; 
} 
.tab-item{ 
 flex: 1; 
 font-size: 30rpx; 
 display: inline-block;  
 color: #777777; 
} 
.on{ 
 color: red; 
 border-bottom: 5rpx solid red; 
} 
.swiper{ display: block; height: 100%; width: 100%; overflow: hidden; } 
.swiper view{ 
 text-align: center; 
 padding-top: 100rpx; 
}

// pages/index/index.js 
Page({ 
 
 /** 
  * 页面的初始数据 
  */ 
 data: { 
  winWidth:0, 
  winHeight:0, 
  currentTab:0 
 }, 
 
 /** 
  * 生命周期函数--监听页面加载 
  */ 
 onLoad: function (options) { 
  var that = this; 
 
  /** 
   * 获取系统信息 
   */ 
  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 
   }) 
  } 
 } , 
 /** 
  * 页面相关事件处理函数--监听用户下拉动作 
  */ 
 onPullDownRefresh: function () { 
 
 }, 
 
 /** 
  * 页面上拉触底事件的处理函数 
  */ 
 onReachBottom: function () { 
 
 }, 
 
 /** 
  * 用户点击右上角分享 
  */ 
 onShareAppMessage: function () { 
 
 } 
})