uni-app购物车页面详细代码

效果图：

这里的购物车加减用的是uni-app中的sku插件

代码附下（全）：

<script setup lang="ts">
import {reqMemberCartList,reqMemberdelentCart,reqMemberPutCart,putMemberCartSelectedAPI,
} from '@/services/cart/cart'
import type { CartItem } from '@/services/cart/type'
import { onShow } from '@dcloudio/uni-app'
import { ref } from 'vue'
import { useMemberStore } from '@/stores/modules/member'
import type { InputNumberBoxEvent } from '@/components/vk-data-input-number-box/vk-data-input-number-box'
import { computed } from 'vue'
let useMemberStores = useMemberStore()
//列表数组
let cartList = ref<CartItem[]>([])//获取购物车列表
let GetCart = async () => {let res = await reqMemberCartList()cartList.value = res.result
}
// 删除购物车
const onDelentCart = (skuId: string) => {// 弹窗二次确认uni.showModal({content: '是否删除',success: async (res) => {if (res.confirm) {// 后端删除单品await reqMemberdelentCart({ ids: [skuId] })// 重新获取列表GetCart()}},})
}
// 修改商品数量
const onChangeCount = (ev: InputNumberBoxEvent) => {reqMemberPutCart(ev.index, { count: ev.value })
}
// 选中状态
const onChangeSelected = (item: CartItem) => {item.selected = !item.selected// 向后端发送请求reqMemberPutCart(item.skuId, { selected: item.selected })
}
// 全选
let onChangeSelectedAll = () => {// 全选状态取反const _isSelectedAll = !selectdAll.value// 前端数据更新cartList.value.forEach((item) => {item.selected = _isSelectedAll})// 后端数据更新putMemberCartSelectedAPI({ selected: _isSelectedAll })
}// 计算全选状态
let selectdAll = computed(() => {return cartList.value.length && cartList.value.every((c) => c.selected)
})// 计算选中单品列表
let selectedCartList = computed(() => {return cartList.value.filter((v) => v.selected)
})
// 计算选中总件数
let selectedCartListCount = computed(() => {return selectedCartList.value.reduce((sum, item) => sum + item.count, 0)
})
// 计算选中总金额
const selectedCartListMoney = computed(() => {return selectedCartList.value.reduce((sum, item) => sum + item.count * item.nowPrice, 0).toFixed(2)
})
// 结算按钮
const gotoPayment = () => {if (selectedCartListCount.value === 0) {return uni.showToast({icon: 'none',title: '请选择商品',})}// 跳转到结算页uni.navigateTo({ url: '/pagesOrder/create/create' })
}
// 初始化调用
onShow(() => {// 用户已登录才允许调用if (useMemberStores.profile) {GetCart()}
})
</script><template><scroll-view scroll-y class="scroll-view"><!-- 已登录: 显示购物车 --><template v-if="cartList.length"><!-- 购物车列表 --><view class="cart-list" v-if="true"><!-- 优惠提示 --><view class="tips"><text class="label">满减</text><text class="desc">满1件, 即可享受9折优惠</text></view><!-- 滑动操作分区 --><uni-swipe-action><!-- 滑动操作项 --><uni-swipe-action-item v-for="item in cartList" :key="item.skuId" class="cart-swipe"><!-- 商品信息 --><view class="goods"><!-- 选中状态 --><text@tap="onChangeSelected(item)"class="checkbox":class="{ checked: item.selected }"></text><navigator:url="`/pages/article/index?id=${item.id}`"hover-class="none"class="navigator"><image mode="aspectFill" class="picture" :src="item.picture"></image><view class="meta"><view class="name ellipsis">{{ item.name }}</view><view class="attrsText ellipsis">{{ item.attrsText }}</view><view class="price">{{ item.nowPrice }}</view></view></navigator><!-- 商品数量 --><view class="count"><vk-data-input-number-boxv-model="item.count":min="1":max="item.stock":index="item.skuId"@change="onChangeCount"/></view></view><!-- 右侧删除按钮 --><template #right><view class="cart-swipe-right"><button class="button delete-button" @tap="onDelentCart(item.skuId)">删除</button></view></template></uni-swipe-action-item></uni-swipe-action></view><!-- 购物车空状态 --><view class="cart-blank" v-else><image src="/static/images/blank_cart.png" class="image" /><text class="text">购物车还是空的，快来挑选好货吧</text><navigator open-type="switchTab" url="/pages/index/index" hover-class="none"><button class="button">去首页看看</button></navigator></view><!-- 吸底工具栏 --><view class="toolbar"><text class="all" :class="{ checked: true }" @tap="onChangeSelectedAll">全选</text><text class="text">合计:</text><text class="amount">{{ selectedCartListMoney }}</text><view class="button-grounp"><view class="button payment-button" :class="{ disabled: true }" @tap="gotoPayment">去结算({{ selectedCartListCount }})</view></view></view></template><!-- 未登录: 提示登录 --><view class="login-blank" v-else><text class="text">登录后可查看购物车中的商品</text><navigator url="/pages/login/login" hover-class="none"><button class="button">去登录</button></navigator></view><!-- 猜你喜欢 --><XtxGuess ref="guessRef"></XtxGuess><!-- 底部占位空盒子 --><view class="toolbar-height"></view></scroll-view>
</template><style lang="scss">
// 根元素
:host {height: 100vh;display: flex;flex-direction: column;overflow: hidden;background-color: #f7f7f8;
}// 滚动容器
.scroll-view {flex: 1;
}// 购物车列表
.cart-list {padding: 0 20rpx;// 优惠提示.tips {display: flex;align-items: center;line-height: 1;margin: 30rpx 10rpx;font-size: 26rpx;color: #666;.label {color: #fff;padding: 7rpx 15rpx 5rpx;border-radius: 4rpx;font-size: 24rpx;background-color: #27ba9b;margin-right: 10rpx;}}// 购物车商品.goods {display: flex;padding: 20rpx 20rpx 20rpx 80rpx;border-radius: 10rpx;background-color: #fff;position: relative;.navigator {display: flex;}.checkbox {position: absolute;top: 0;left: 0;display: flex;align-items: center;justify-content: center;width: 80rpx;height: 100%;&::before {content: '\e6cd';font-family: 'erabbit' !important;font-size: 40rpx;color: #444;}&.checked::before {content: '\e6cc';color: #27ba9b;}}.picture {width: 170rpx;height: 170rpx;}.meta {flex: 1;display: flex;flex-direction: column;justify-content: space-between;margin-left: 20rpx;}.name {height: 72rpx;font-size: 26rpx;color: #444;}.attrsText {line-height: 1.8;padding: 0 15rpx;font-size: 24rpx;align-self: flex-start;border-radius: 4rpx;color: #888;background-color: #f7f7f8;}.price {line-height: 1;font-size: 26rpx;color: #444;margin-bottom: 2rpx;color: #cf4444;&::before {content: '￥';font-size: 80%;}}// 商品数量.count {position: absolute;bottom: 20rpx;right: 5rpx;display: flex;justify-content: space-between;align-items: center;width: 220rpx;height: 48rpx;.text {height: 100%;padding: 0 20rpx;font-size: 32rpx;color: #444;}.input {height: 100%;text-align: center;border-radius: 4rpx;font-size: 24rpx;color: #444;background-color: #f6f6f6;}}}.cart-swipe {display: block;margin: 20rpx 0;}.cart-swipe-right {display: flex;height: 100%;.button {display: flex;justify-content: center;align-items: center;width: 50px;padding: 6px;line-height: 1.5;color: #fff;font-size: 26rpx;border-radius: 0;}.delete-button {background-color: #cf4444;}}
}// 空状态
.cart-blank,
.login-blank {display: flex;justify-content: center;align-items: center;flex-direction: column;height: 60vh;.image {width: 400rpx;height: 281rpx;}.text {color: #444;font-size: 26rpx;margin: 20rpx 0;}.button {width: 240rpx !important;height: 60rpx;line-height: 60rpx;margin-top: 20rpx;font-size: 26rpx;border-radius: 60rpx;color: #fff;background-color: #27ba9b;}
}// 吸底工具栏
.toolbar {position: fixed;left: 0;right: 0;bottom: var(--window-bottom);z-index: 1;height: 100rpx;padding: 0 20rpx;display: flex;align-items: center;border-top: 1rpx solid #ededed;border-bottom: 1rpx solid #ededed;background-color: #fff;box-sizing: content-box;.all {margin-left: 25rpx;font-size: 14px;color: #444;display: flex;align-items: center;}.all::before {font-family: 'erabbit' !important;content: '\e6cd';font-size: 40rpx;margin-right: 8rpx;}.checked::before {content: '\e6cc';color: #27ba9b;}.text {margin-right: 8rpx;margin-left: 32rpx;color: #444;font-size: 14px;}.amount {font-size: 20px;color: #cf4444;.decimal {font-size: 12px;}&::before {content: '￥';font-size: 12px;}}.button-grounp {margin-left: auto;display: flex;justify-content: space-between;text-align: center;line-height: 72rpx;font-size: 13px;color: #fff;.button {width: 240rpx;margin: 0 10rpx;border-radius: 72rpx;}.payment-button {background-color: #27ba9b;&.disabled {opacity: 0.6;}}}
}
// 底部占位空盒子
.toolbar-height {height: 100rpx;
}
</style>