小程序之选项卡切换（纵向）

选项卡算是小程序中必不可少，大家基本上都会用到的一个功能组件，今天就来分享一个自己做的效果，纵向的一个选项卡

wxml 

<view class='productNav'>
  <!-- 左侧 -->
  <view class='left'>
    <view class="{{active==0?'selected':'normal'}}" id="0" bindtap='switchNav'>牙齿清洁</view>
    <view class="{{active==1?'selected':'normal'}}" id="1" bindtap='switchNav'>牙齿矫正</view>
    <view class="{{active==2?'selected':'normal'}}" id="2" bindtap='switchNav'>牙齿种植</view>
    <view class="{{active==3?'selected':'normal'}}" id="3" bindtap='switchNav'>牙齿治疗</view>
    <view class="{{active==4?'selected':'normal'}}" id="4" bindtap='switchNav'>拔牙补牙</view>
    <view class="{{active==5?'selected':'normal'}}" id="5" bindtap='switchNav'>牙齿美容</view>
  </view>
  <!-- 右侧 -->
  <view class='right'>
    <view class='type'>
      <!-- current:当前所在滑块的 index -->
      <!-- vertical:滑动方向是否为纵向 -->
      <swiper class="swiper-item" current='{{currentTab}}' vertical='{{true}}'>
        <!-- catchtouchmove 阻止弹窗后滚动穿透 -->
        <swiper-item id="0" catchtouchmove="false">
          牙齿清洁
        </swiper-item>
        <swiper-item id="1" catchtouchmove="false">
          牙齿矫正
        </swiper-item>
        <swiper-item id="2" catchtouchmove="false">
          牙齿种植
        </swiper-item>
        <swiper-item id="3" catchtouchmove="false">
          牙齿治疗
        </swiper-item>
        <swiper-item id="4" catchtouchmove="false">
          拔牙补牙
        </swiper-item>
        <swiper-item id="5" catchtouchmove="false">
          牙齿美容
        </swiper-item>
      </swiper> 
    </view>
  </view>
</view>

wmss

/* 选项卡 */
.productNav{
  display: flex;
  flex-direction: row;
  font-family: "Microsoft YaHei"
}
.left{
  width: 25.3%;
  font-size: 30rpx;
  background-color: #f4f4f4;
}
.left view{
  text-align: center;
  height: 95rpx;
  line-height: 95rpx;
}
.selected{
  background-color: #fff; 
  font-weight: bold;
  color: #E54847;
}
.normal{
  background-color: #f4f4f4;
  border-bottom: 1px solid #f2f2f2;
}
.right{
  width:74%;
  margin: 0;
}
swiper{
  height: 1050rpx;
}
.swiper-item view{
  width: 540rpx;
  height: 200rpx;
  padding: 25rpx 0 25rpx 20rpx;
  border-bottom: 1rpx solid #ccc;
}

　js

Page({
  data: {
    active: 0,
    currentTab: 0
  },
  // 选项卡  主要是通过判断e.target.id的值 设置对应的id显示
  switchNav: function (e) {
    var page = this;
    var id = e.target.id;
    if (this.data.currentTab == id) {
      return false;
    } else {
      page.setData({
        currentTab: id
      });
    }
    page.setData({
      active: id
    });
  }
})