uni-app购物车⽣成订单列表
<template>
<view class="cart">
<view class="content">
<label for="" v-for="item in list":key='item.id'>
<view class="list">
<view class="left">
<checkbox-group @change="checkboxChange($event,item.id)">
<checkbox :value="item.id":checked="item.isChecked"/>
</checkbox-group>
<image :src="item.img"class="img"></image>
</view>
<view class="center">
<view class="name">
{{item.name}}
</view>
<view class="size">
尺⼨：{{item.size}}
</view>
<view class="count">
数量：x{{unt}}
</view>
</view>
<view class="right">
<view class="price">
单价￥{{item.price}}元
</view>
<view class="update-count">
<!--阻⽌事件冒泡-->
<view class="reduce" @tap.stop="editNum(item.id,-1,$event)">
-
</view>
<view class="cart-count">
{{unt}}
</view>
<view class="add" @tap.stop="editNum(item.id,1,$event)">
+
</view>
</view>
</view>
</view>
</label>
</view>
<!--底部导航栏-->
<view class="tabbar">
<view class="all">
<checkbox-group @change="checkboxChangeAll">
<checkbox :checked="isAllChecked"/>全选
</checkbox-group>
</view>
<view class="totalPrice">
总价:￥{{totalPrice}}元
</view>
<view class="submitOrder" @tap="submitOrder">
付款
</view>
</view>
</view>
</template>
</template>
<script>
export default{
data(){
return{
list:[],//列表数据
isAllChecked:false,//是否全选
totalPrice:0//总价
}
},
methods:{
setCart(){//计算总价
let totalPrice =0
this.list.forEach(v =>{
if(v.isChecked){
totalPrice += v.count * v.price
}
})
},
editNum(id, type,e){//编辑数量
const index =this.list.findIndex(v => v.id == id)
console.log(index)
if(this.list[index].count ==1&& type ==-1){
uni.showToast({
title:'⾄少购买⼀件商品',
icon:'none'
})
}else{
this.list[index].count += type
}
this.setCart()
},
// 全选
checkboxChangeAll(e){
this.isAllChecked =!this.isAllChecked
this.list.forEach(v => v.isChecked =this.isAllChecked)
this.setCart()
},
// 选择每⼀项
checkboxChange:function(e, id){
var temp =[];
// 到被修改的商品对象
let index =this.list.findIndex(v => v.id === id)
// 选中状态取反
this.list[index].isChecked =!this.list[index].isChecked
//every  数组中的每⼀个元素都满⾜条件才返回true。有⼀个不满⾜，就返回false并停⽌寻    temp =this.list.every(v => v.isChecked)
if(temp){
this.isAllChecked =true
}else{
this.isAllChecked =false
}
this.setCart()
},
submitOrder(){// 提交购物车订单
// 判断是否选择购物车商品
var bol =this.list.every(el => el.isChecked ==false)
//如果⼀个没选，选择付款
//如果⼀个没选，选择付款
if(bol){
uni.showToast({
title:"这些你都不喜欢吗，你是不是只喜欢喝⽔，你倒是选⼀个啊商品啊",      icon:"none",
duration:2000
})
}else{
let that =this;
// 下单的购物列表
that.productData =[];
that.list.forEach(item =>{
if(item.isChecked ==true){
that.productData.push(item);
}
});
/
/ 打印购买清单, 购买⾦额
console.log(that.alPrice)
// uni.showToast({
//    title: "你肯定没有钱，还是算了吧",
//    icon: "none",
htmlborder//    duration: 2000
// })
}
}
},
onShow(){
/
/ 模拟从后台拿到的数据
var list =[{
id:'0',
name:'好吃的虾',
price:10,
count:1,
size:'⼤份',
img:'47.92.83.204:8080/zhangying/img/cart/xia1.jpg'
},
{
id:'1',
name:'很好吃的虾',
price:15,
count:1,
size:'⼤份',
img:'47.92.83.204:8080/zhangying/img/cart/xia2.jpg'
},
{
id:'2',
name:'可乐鸡翅',
price:12,
count:1,
size:'⼤份',
img:'47.92.83.204:8080/zhangying/img/cart/jichi.jpg'
},{
id:'3',
name:'⽕锅',
price:30,
count:1,
size:'⼤份',
img:'47.92.83.204:8080/zhangying/img/cart/huoguo.jpg'
},
{
id:'4',
name:'⼲锅鸡',
price:25,
count:1,
size:'⼤份',
size:'⼤份',
img:'47.92.83.204:8080/zhangying/img/cart/ganguoji.jpg'
}
]
// list数组中为每⼀项添加双向绑定的属性---这个属性要在页⾯显⽰(onShow)添加  list.forEach(el => el.isChecked =false);
this.list = list;
},
}
</script>
<style lang="scss" scoped>
page {
background: #f1e8e7;
}
.content {
width:670rpx;
margin:0 auto 180rpx;
}
/
/ 居中显⽰
@mixin textCenter {
display: flex;
align-items: center;
justify-content: center;
}
.list {
width:672rpx;
height:208rpx;
background: #f9f9f9;
box-shadow:08rpx 16rpx 0rgba(83,66,49,0.08);
border-radius:24rpx;
margin-top:32rpx;
display: flex;
justify-content: space-around;
align-items: center;
.left {
display: flex;
.img {
width:136rpx;
height:136rpx;
margin-left:10rpx;
border-radius:8%;
}
}
.center {
width:170rpx;
.name {
font-size:26rpx;
color: #3E3E3E;
white-space: nowrap;
text-overflow: ellipsis;
overflow: hidden;
}
.size,
.count {
font-size:22rpx;
color: #8D8D8D;
}
}
}
.right {
.price {
margin-top:40rpx;
font-size:26rpx;
margin-left:40rpx;
}
// 加减数量
.update-count {
margin-top:40rpx;
display: flex;
.reduce,
.add {
width:40rpx;
height:40rpx;
background: #F1ECE7;
border-radius:21.6rpx;
color: #979797;
@include textCenter;
font-size:50rpx;
}
.cart-count {
width:72rpx;
height:40rpx;
line-height:40rpx;
background: #F1ECE7;
border-radius:21.6rpx;
margin-left:18rpx;
margin-right:18rpx;
text-align: center;
}
}
}
}
// 底部导航
.tabbar {
width:100%;
background-color: #f3f3f3;
position: fixed;
bottom:0rpx;
display: flex;
align-items: center;
justify-content: space-around;  border-radius:8%8%;
.all {
font-size:32rpx;
color: #3E3E3E;
letter-spacing:2.29rpx;
display: flex;
}
.totalPrice {
font-size:32rpx;
color: #3E3E3E;
letter-spacing:2.29rpx;
color: red;
}
.submitOrder {

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