微信小程序开发之实现选项卡(窗口顶部TabBar)页面切换

<!--index.wxml--> <view class="swiper-tab">   <view class="swiper-tab-list {{currentTab==0 ? 'on' : ''}}" data-current="0" bindtap="swichNav">哈哈</view>   <view class="swiper-tab-list {{currentTab==1 ? 'on' : ''}}" data-current="1" bindtap="swichNav">呵呵</view>   <view class="swiper-tab-list {{currentTab==2 ? 'on' : ''}}" data-current="2" bindtap="swichNav">嘿嘿</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> 

/**indexwxss**/ 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: 33%;   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; } 

//index.js //获取应用实例 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    */   wxgetSystemInfo( {     success: function( res ) {     thatsetData( {      winWidth: reswindowWidth,      winHeight: reswindowHeight     });    }    });  },  /**    * 滑动切换tab    */  bindChange: function( e ) {    var that = this;   thatsetData( { currentTab: edetailcurrent });   },  /**   * 点击tab切换   */  swichNav: function( e ) {    var that = this;    if( thisdatacurrentTab === etargetdatasetcurrent ) {    return false;   } else {    thatsetData( {     currentTab: etargetdatasetcurrent    })   }  } })