微信小程序的tab选项卡

使用以下组件实现

image.png

先上一段代码，看看效果
wxml

<view class="swiper-tab">  
    <view class="swiper-tab-list {{currentTab==0 ? 'on' : ''}}" data-current="0" bindtap="swichNav">主页</view>  
    <view class="swiper-tab-list {{currentTab==1 ? 'on' : ''}}" data-current="1" bindtap="swichNav">功能</view>  
</view>  

wxss

.swiper-tab{  
    width: 100%;  
    border-bottom: 2rpx solid #00a0e8;  
    text-align: center;  
    line-height: 80rpx;}  
.swiper-tab-list{  font-size: 30rpx;  
    display: inline-block;  
    width: 33.33%;  
    color: #00a0e8;  
}  
.on{ color: #da7c0c;  
    border-bottom: 5rpx solid #da7c0c;}  
  
.swiper-box{ display: block; height: 100%; width: 100%; overflow: hidden; }  
.swiper-box view{  
    text-align: center;  
}  

结果如下

image.png

接下来，要在JS中实现切换效果，并且添加页面

//index.js
//获取应用实例
const app = getApp()

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

    /** 
     * 获取系统信息 
     */
    wx.getSystemInfo({
      success: function (res) {
        that.setData({
          winWidth: res.windowWidth,
          winHeight: res.windowHeight
        });
      }
    });
  },
  /** 
     * 滑动切换tab 
     */
  bindChange: function (e) {
    var that = this;
    that.setData({ currentTab: e.detail.current });
  },
  /** 
   * 点击tab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
      })
    }
  }
})

丑丑的，优化一下页面

wxml

<view class="swiper-tab">
  <view class="swiper-tab-list {{currentTab==0 ? 'on' : ''}}" data-current="0" bindtap="swichNav">主页</view>
  <view class="swiper-tab-list {{currentTab==1 ? 'on' : ''}}" data-current="1" bindtap="swichNav">功能</view>
</view>
<swiper current="{{currentTab}}" class="swiper-box" duration="300" style="height:{{winHeight - 31}}px" bindchange="bindChange">
  <swiper-item>
    <view>主页</view>
  </swiper-item>
  <!-- 我是呵呵 -->
  <swiper-item>
    <view>功能</view>
  </swiper-item>
</swiper>

wxss

.swiper-tab{  
    width: 100%;  
    border-bottom: 2rpx solid #d0d0d0;  
    text-align: center;  
    line-height: 80rpx;}  
.swiper-tab-list{  font-size: 30rpx;  
    display: inline-block;  
    width: 50%;  
    color: #272727;  
}  
.on{ color: #00a0e8;  
    border-bottom: 5rpx solid #00a0e8;}  
  
.swiper-box{ display: block; height: 100%; width: 100%; overflow: hidden; }  
.swiper-box view{  
    text-align: center;  
}  

image.png

弄完了