微信小程序实现收缩式菜单

本文实例为大家分享了微信小程序实现收缩式菜单的具体代码，供大家参考，具体内容如下

wxml文件

<view>
<!--分类 -->
<view bindtap='changeToggle'>
<view>谷类及制品</view>
<view>6 <text> </text>
      </view>
  </view>
  <view hidden="{{!selectedFlag[0]}}">
    <view wx:for="{{list01}}" wx:for-item="item" wx:for-index="index">
      <view>
        <view>{{item}}</view>
      </view>
    </view>
  </view>
  <view bindtap='changeToggle'>
    <view>薯类、淀粉及制品</view>
    <view>6
      <text> </text>
    </view>
  </view>
  <view hidden="{{!selectedFlag[1]}}">
    <block wx:for="{{list02}}" wx:for-item="item" wx:for-index="index">
      <view>
        <view>{{item}}</view>
      </view>
    </block>
  </view>
  <view bindtap='changeToggle'>
    <view>干豆类及制品</view>
    <view>6
      <text> </text>
    </view>
  </view>
  <view hidden="{{!selectedFlag[2]}}">
    <block wx:for="{{list03}}" wx:for-item="item" wx:for-index="index">
      <view>
        <view>{{item}}</view>
      </view>
    </block>
  </view>
  <view bindtap='changeToggle'>
    <view>蔬菜类及制品</view>
    <view>6
      <text> </text>
    </view>
  </view>
 <view hidden="{{!selectedFlag[3]}}">
    <block wx:for="{{list04}}" wx:for-item="item" wx:for-index="index">
      <view>
        <view>{{item}}</view>
      </view>
    </block>
  </view>
<view bindtap='changeToggle'>
    <view>菌藻类</view>
    <view>6
      <text> </text>
    </view>
  </view>
 <view hidden="{{!selectedFlag[4]}}">
    <block wx:for="{{list05}}" wx:for-item="item" wx:for-index="index">
      <view>
        <view>{{item}}</view>
      </view>
    </block>
  </view>
<view bindtap='changeToggle'>
    <view>水果类及制品</view>
    <view>6
      <text> </text>
    </view>
  </view>
 <view hidden="{{!selectedFlag[5]}}">
    <block wx:for="{{list06}}" wx:for-item="item" wx:for-index="index">
      <view>
        <view>{{item}}</view>
      </view>
    </block>
  </view>
<view bindtap='changeToggle'>
    <view>坚果、种子类</view>
    <view>6
      <text> </text>
    </view>
  </view>
 <view hidden="{{!selectedFlag[6]}}">
    <block wx:for="{{list07}}" wx:for-item="item" wx:for-index="index">
      <view>
        <view>{{item}}</view>
      </view>
    </block>
  </view>
<view bindtap='changeToggle'>
    <view>畜肉类及制品</view>
    <view>6
      <text> </text>
    </view>
  </view>
 <view hidden="{{!selectedFlag[7]}}">
    <block wx:for="{{list08}}" wx:for-item="item" wx:for-index="index">
      <view>
        <view>{{item}}</view>
      </view>
    </block>
  </view>
</view>

wxss文件

.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;
}
 
 .icon-xiala ,.icon-shangjiantou {
  color: #999;
  font-size: 58rpx;
}

js文件

Page({
  data: {
    list01: [
       "面条","花卷","馒头","油条","米饭","小米" ,
    ],
    list02: [
      "甘薯","红薯","粉丝","土豆","魔芋豆腐","小黑药粉" ,
    ],
    list03: [
      "豆腐卷","豆腐干","素大肠","绿豆","素鸡","脑豆" 
    ],
    list04: [
      "胡萝卜","白萝卜","豌豆尖","绿豆芽","白菜","蒜苔" 
    ],
    list05: [
      "海带","香菇","蘑菇","紫菜","金针菇","木耳" 
    ],
    list06: [
      "西瓜","木瓜","梨","苹果","橘子","香蕉" 
    ],
    list07: [
      "花生","芝麻","杏仁","榛子","腰果","桃仁" 
    ],
    list08: [
      "猪肉","猪蹄","腊肉","牛肉","羊肉","马肉" 
    ],
  // 展开折叠
    selectedFlag: [false, false, false, false,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

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