微信小程序中顶部导航栏的实现代码

  
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   我是哈哈  
    
    
    
   我是呵呵  
    
    
    
   我是嘿嘿  
    
    
   我是嘿嘿  
    
    
   我是嘿嘿  
    
  

.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' 
  } 
 } 
})