微信小程序全选多选效果

 1 <view class="memberList">
 2   <view class="allSelect_box" bindtap=‘selectAll‘>
 3     <checkbox class="checkbox" checked="{{selectilall}}"/>
 4     <text class="allSelect">全选</text>
 5   </view>
 6   <view wx:for="{{list}}">
 7     <view class="member_box" data-index="{{index}}" data-name="{{item.id}}" bindtap=‘select‘>
 8       <checkbox class="checkbox" checked="{{item.checked}}"/>
 9       <image src="../../assets/img/user_img.jpg" mode="widthFix" class="avatar"></image>
10       <view>
11         <view class="applicant_name">汪小涵 <text>管理员</text> </view>
12         <view class="approval_state">总监</view>
13       </view>
14     </view>
15   </view>
16 </view>

 1 .memberList{
 2   background:#fff;
 3   padding:0 35rpx 0 28rpx;
 4 }
 5 .allSelect_box{
 6   line-height:90rpx;
 7   border-bottom:1rpx solid #F5F5F5;
 8 }
 9 .checkbox{
10   transform: scale(0.7,0.7);
11 }
12 .member_box .checkbox{
13   margin-top: 15rpx;
14 }
15 checkbox .wx-checkbox-input.wx-checkbox-input-checked {
16   color:#fff;
17   background: #6669e3;
18   border-color:#6669e3;
19 }
20 .allSelect{
21   margin-left:15rpx;
22   vertical-align:middle;
23 }
24 .member_box{
25   padding-bottom:30rpx;
26   display: flex;
27   border-bottom:2rpx solid #EBEBEB;
28   padding:20rpx 0 20rpx 0;
29 }
30 .avatar{
31   width:100rpx;
32   border-radius:50%;
33   margin-left:15rpx;
34 }
35 .applicant_name{
36   font-size:34rpx;
37   padding:0 0 15rpx 30rpx;
38 }
39 .applicant_name text{
40   color:#fff;
41   background:#6669e3;
42   font-size:28rpx;
43   padding:5rpx 10rpx;
44   border-radius:10rpx;
45   margin-left:15rpx;
46 }
47 .approval_state{
48   color:#8D8D8D;
49   font-size:28rpx;
50   padding-left: 30rpx;
51 }

1 data: {
2     list: [
3       { id: 1, name: 1, checked: false },
4       { id: 2, name: 2, checked: false },
5       { id: 3, name: 3, checked: false },
6       { id: 4, name: 4, checked: false },
7     ],
8     selectilall: false
9   },

//单选
  select: function (e) {
    let selectValue = e.currentTarget.dataset.name
    let index = e.currentTarget.dataset.index;
    let list = this.data.list
    let newli = ‘list[‘ + index + ‘].checked‘;
    this.setData({
      [newli]: !this.data.list[index].checked
    })
    let num = 0;
    for(var i=0;i<this.data.list.length;i++){
      if(this.data.list[i].checked){
        num++;
      }
    }
    if(num == this.data.list.length){
      this.setData({
        selectilall: true
      })
    }else{
      this.setData({
        selectilall: false
      })
    }
  },
  //全选，取消全选
  selectAll: function (e) {
    let list = this.data.list;
    let selectilall = this.data.selectilall;
    if (selectilall == false) {
      for (let i = 0; i < list.length; i++) {
        let newli = ‘list[‘ + i + ‘].checked‘;
        this.setData({
          [newli]: true,
          selectilall: true
        })
      }
    } else {
      for (let i = 0; i < list.length; i++) {
        let newli = ‘list[‘ + i + ‘].checked‘;
        this.setData({
          [newli]: false,
          selectilall: false
        })
      }
    }
  }