微信小程序使用自定义组件导航实现当前页面高亮

<!-- 公共头部组件 -->
<view class='headers'>
   <navigator open-type="redirectTo" class='logo' url="../index/index" hover-class="none">
    <image src="../../assets/img/logo2.png" mode="widthFix"></image>
   </navigator>
  <view class="phone_nav_switch" bindtap="controlNav">
    <view class="iconfont icon-daohang" hidden="{{navIsShow}}"></view>
    <view class="iconfont icon-guanbi" hidden="{{!navIsShow}}"></view>
  </view>
  <view class="nav">
    <view class="shadow {{navIsShow ? 'active':''}}" bindtap="controlNav"></view>
    <view class="bg {{navIsShow ? 'active':''}}">
      <view class='con' wx:for="{{navs}}" wx:key="item.url">
         <navigator open-type="redirect" data-index="{{index}}" class="{{index === navActive ? 'active' : ''}}" url="{{item.url}}" hover-class="none">
          {{item.text}}
         </navigator>
      </view>
    </view>
  </view>
  <!-- 返回顶部 -->
  <view class="backTop" bindtap="goTop" hidden='{{floorstatus}}'>
    <text class="icon iconfont icon-iconfonticontrianglecopy"></text>
  </view>

</view>

 /**
  * 组件的属性列表
  */
 properties: {
  // 当前导航高亮
  navActive: {
   // 类型
   type: Number,
   // 默认值
   value: 0
  }
 },

 data: { 
  // 导航开关 
  navIsShow: false,
  currentIndexNav: 0,
  // floorstatus: false,
  navs: [
   {
    text: '网站首页',
    url: '../index/index'
   },
   {
    text: '招商加盟',
    url: '../join/join'
   },
   {
    text: '关于煮田',
    url: '../about/about'
   },
   {
    text: '煮田美食',
    url: '../food/food'
   },
   {
    text: '最新资讯',
    url: '../news/news'
   },
   {
    text: '门店查询',
    url: '../search/search'
   },
   {
    text: '联系我们',
    url: '../contact/contact'
   },
   {
    text: '视频列表',
    url: '../videoItem/videoItem'
   }

  ]
 },

{
 "component": true
}

{
 "component": true,
 "usingComponents": {
  "header":"../header/header"
 }
}

 <!-- 头部组件 -->
  <view class='header'> 
    <!-- 导航高亮传值 -->
     <header navActive='0'></header>
  </view>