About the implementation of the top navigation bar in WeChat mini program

This article mainly introduces the relevant information about the implementation code of the top navigation bar in the WeChat applet. Friends in need can refer to the following

Implementation of the top navigation bar in the WeChat applet

Example code:

<view class="swiper-tab">  
  <view class="swiper-tab-list {{currentTab==0 ? &#39;on&#39; : &#39;&#39;}}" data-current="0" bindtap="swichNav">11</view>  
  <view class="swiper-tab-list {{currentTab==1 ? &#39;on&#39; : &#39;&#39;}}" data-current="1" bindtap="swichNav">22</view>  
  <view class="swiper-tab-list {{currentTab==2 ? &#39;on&#39; : &#39;&#39;}}" data-current="2" bindtap="swichNav">33</view> 
  <view class="swiper-tab-list {{currentTab==3 ? &#39;on&#39; : &#39;&#39;}}" data-current="3" bindtap="swichNav">44</view> 
  <view class="swiper-tab-list {{currentTab==4 ? &#39;on&#39; : &#39;&#39;}}" data-current="4" bindtap="swichNav">55</view>     
</view>  
  
<swiper current="{{currentTab}}" class="swiper-box" duration="300" style="height:{{winHeight - 31}}px" bindchange="bindChange">  
  <!-- 我是哈哈 -->  
  <swiper-item>  
   <view>我是哈哈</view>  
  </swiper-item>  
  <!-- 我是呵呵 -->  
  <swiper-item>  
   <view>我是呵呵</view>  
  </swiper-item>  
  <!-- 我是嘿嘿 -->  
  <swiper-item>  
   <view>我是嘿嘿</view>  
  </swiper-item>  
  <swiper-item>  
   <view>我是嘿嘿</view>  
  </swiper-item>  
  <swiper-item>  
   <view>我是嘿嘿</view>  
  </swiper-item>  
</swiper>

.swiper-tab{  
  width: 100%;  
  border-bottom: 2rpx solid #777777;  
  text-align: center;  
  line-height: 80rpx; 
  }  
.swiper-tab-list{ font-size: 30rpx;  
  display: inline-block;  
  width: 20%;  
  color: #777777;  
}  
.on{ color: #da7c0c;  
  border-bottom: 5rpx solid #da7c0c;}  
.swiper-box{ display: block; height: 100%; width: 100%; overflow: hidden; }  
.swiper-box view{  
  text-align: center;  
}

var app = getApp()  
Page( {  
 data: {  
  /** 
    * 页面配置 
    */  
  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  
   })  
  }   
 }, 
 /** 
 * 点击分享 
 */ 
 onShareAppMessage: function () { 
  return { 
   title: '装逼小程序', 
   path: '/page/user?id=123' 
  } 
 } 
})

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