微信小程序：多选框checkbox样式修改

众所周知微信小程序多选框默认为小方框，有时候看起来有些呆板，以下代码提供一些样式修改方法，具体样式可根据个人需求修改

修改前后效果图对比

修改前

修改后

 代码

wxml

<view class="container">
  <view class="page-body">
    <view class="page-section page-section-gap">
      <view class="page-section-title">默认样式</view>
      <label class="checkbox">
        <checkbox value="cb" checked="true"/>选中
      </label>
      <label class="checkbox">
        <checkbox value="cb" />未选中
      </label>
    </view>
  
    <view class="page-section">
      <view class="page-section-title">推荐展示样式</view>
      <view class="weui-cells weui-cells_after-title">
        <checkbox-group bindchange="checkboxChange">
          <label class="weui-cell weui-check__label" wx:for="{{items}}" wx:key="{{item.value}}">
            <view class="weui-cell__hd">
              <checkbox value="{{item.value}}" checked="{{item.checked}}"/>
            </view>
            <view class="weui-cell__bd">{{item.name}}</view>
          </label>
        </checkbox-group>
      </view>
    </view>
  </view>
  
</view>

wxss

page{
    text-align: center;
}
.weui-cell {
    display: flex;
    //盒子垂直、水平居中
     justify-content: center;
     align-items: center;
     padding: 20rpx 0;
}
//-----------------------------------------主要代码----------------------------
// 复选框样式
checkbox .wx-checkbox-input {
    width: 50rpx;
    height: 50rpx;
    border-radius: 50%;
  }
  // 复选框选中样式
  checkbox .wx-checkbox-input.wx-checkbox-input-checked {
    border-color: #18d6ff;
    background-color: #18d6ff;
  }
  // 复选框选中之后对号的样式
  checkbox .wx-checkbox-input.wx-checkbox-input-checked::before {
    color:#fff;
  }

js

Page({
    onShareAppMessage() {
      return {
        title: 'checkbox',
        path: 'page/component/pages/checkbox/checkbox'
      }
    },
  
    data: {
      items: [
        {value: 'USA', name: '美国'},
        {value: 'CHN', name: '中国', checked: 'true'},
        {value: 'BRA', name: '巴西'},
        {value: 'JPN', name: '日本'},
        {value: 'ENG', name: '英国'},
        {value: 'FRA', name: '法国'}
      ]
    },
  
    checkboxChange(e) {
      console.log('checkbox发生change事件，携带value值为：', e.detail.value)
  
      const items = this.data.items
      const values = e.detail.value
      for (let i = 0, lenI = items.length; i < lenI; ++i) {
        items[i].checked = false
  
        for (let j = 0, lenJ = values.length; j < lenJ; ++j) {
          if (items[i].value === values[j]) {
            items[i].checked = true
            break
          }
        }
      }
  
      this.setData({
        items
      })
    }
  })