微信小程序实现折叠展开效果


            本文实例为大家分享了微信小程序实现折叠展开效果的具体代码，供大家参考，具体内容如下

wxml：





<view class="page">

<!-- 总数 -->

<view class="li" bindtap='changeToggle'>

<view class="left">总数</view>

<view class="right gray" >8</view>

</view>



<!--分类 -->

<view class="li" data-index="0" bindtap='changeToggle'>

<view class="left">类别1</view>

<view class="right">3 <text class="iconfont {{selectedFlag[0]?'icon-shangjiantou':'icon-xiala'}}"> </text>

  </view>

 </view>

 <view hidden="{{!selectedFlag[0]}}">

 <block wx:for="{{list01}}" wx:for-item="item" wx:for-index="index">

  <view class="li bg-gray">

  <view>展开1</view>

  </view>

 </block>

 </view>



 <view class="li" data-index="1" bindtap='changeToggle'>

 <view class="left">类别2</view>

 <view class="right">0

  <text class="iconfont {{selectedFlag[1]?'icon-shangjiantou':'icon-xiala'}}"> </text>

 </view>

 </view>

 <view hidden="{{!selectedFlag[1]}}">

 <block wx:for="{{list02}}" wx:for-item="item" wx:for-index="index">

  <view class="li bg-gray">

  <view>展开2</view>



  </view>

 </block>

 </view>



 <view class="li" data-index="2" bindtap='changeToggle'>

 <view class="left">类别3</view>

 <view class="right red">2

  <text class="iconfont {{selectedFlag[2]?'icon-shangjiantou':'icon-xiala'}}"> </text>

 </view>

 </view>

 <view hidden="{{!selectedFlag[2]}}">

 <block wx:for="{{list03}}" wx:for-item="item" wx:for-index="index">

  <view class="li bg-gray">

  <view>展开3</view>



  </view>

 </block>

 </view>





 <view class="li" data-index="3" bindtap='changeToggle'>

 <view class="left">类别4</view>

 <view class="right red">3

  <text class="iconfont {{selectedFlag[3]?'icon-shangjiantou':'icon-xiala'}}"> </text>

 </view>

 </view>

 <view hidden="{{!selectedFlag[3]}}">

 <block wx:for="{{list04}}" wx:for-item="item" wx:for-index="index">

  <view class="li bg-gray">

  <view>展开4</view>

  <view class="red">展开4右边</view>

  </view>

 </block>

 </view>



wxss:





/* 列表详情 */



.li {

 background-color: #fff;

 display: flex;

 justify-content: space-between;

 font-size: 34rpx;

 width: 92%;

 padding: 0 4%;

 height: 100rpx;

 line-height: 100rpx;

 border-bottom: 1rpx solid #f1f1f1;

}

.bg-gray{

 background-color: #ccc!important;

 border-bottom: 1rpx solid #fff!important;

}



.li .icon-xiala ,.icon-shangjiantou {

 color: #999;

 font-size: 28rpx;

}



.gray {

 color: #8e8e8e;

}



.red {

 color: #fe2e2e;

}



js:







Page({

 data: {



 list01: [

  { item_id: 1 }, { item_id: 11 }, { item_id: 11 },

 ],

 list02: [



 ],

 list03: [

  { item_id: 11 }, { item_id: 11 }

 ],

 list04: [

  { item_id: 11 }, { item_id: 11 }, { item_id: 11 }

 ],



 // 展开折叠

 selectedFlag: [false, false, false, false],



 },

 // 展开折叠选择 

 changeToggle:function(e){

 var index = e.currentTarget.dataset.index;

 if (this.data.selectedFlag[index]){

  this.data.selectedFlag[index] = false;

 }else{

  this.data.selectedFlag[index] = true;

 }



 this.setData({

  selectedFlag: this.data.selectedFlag

 })

 },



})







效果图，手风琴效果：



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