WeChat applet development implements tab (TabBar at the top of the window) page switching

Tabs are being developed in the WeChat mini program. In Android, tabs generally use fragments. When it came to the mini program, I was instantly confused.

Finally made it. Share Come out and take a look.

First look at the effect:

Then add the code:

1.index.wxml

<!--index.wxml--> 
<view class="swiper-tab"> 
  <view class="swiper-tab-list {{currentTab==0 ? &#39;on&#39; : &#39;&#39;}}" data-current="0" bindtap="swichNav">哈哈</view> 
  <view class="swiper-tab-list {{currentTab==1 ? &#39;on&#39; : &#39;&#39;}}" data-current="1" bindtap="swichNav">呵呵</view> 
  <view class="swiper-tab-list {{currentTab==2 ? &#39;on&#39; : &#39;&#39;}}" 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>

2.indexwxss

/**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; 
}

3.index.js

//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 
   }) 
  } 
 } 
})

Such a top tab similar to the viewpage comes out.

More WeChat applet development implementation tab (TabBar at the top of the window) page switching For related articles, please pay attention to the PHP Chinese website!