更新记录

2.0（2023-11-25）

组件优化、增加组件使用说明

1.0.1（2023-11-11）

组件优化

1.0.0（2023-11-11）

组件初始化

平台兼容性

仿天猫 淘宝购物车列表页面

使用方法

引入uni-number-box xg-widget组件        

事件处理如下：     
// 过滤选择的商品
            filterCheckedProduct(products) {
                return products.filter(item => item.checked);
            },
            // 过滤未选择的商品
            filterUncheckedProduct(products) {
                return products.filter(item => !item.checked);
            },
            // 店铺勾选
            onShopCheckboxTap(shop) {
                shop.checked = !shop.checked;

                shop.products.forEach(product => {
                    product.checked = shop.checked;
                });
            },
            // 商品勾选
            onProductCheckboxTap(product) {
                product.checked = !product.checked
            },
            // 数量改变
            onNumberBoxChange(product, e) {
                product.count = e;
            },
            // 全选
            onCheckAllTap() {
                const checked = !this.allChecked;
                this.shops.forEach(shop => {
                    shop.products.forEach(product => {
                        product.checked = checked;
                    })
                })
            }

HTML代码实现部分

<template>
    <view>
        <!-- 空购物车 -->
        <view v-if="isEmptyCart"
            class="bg-color-white border-bottom-left-radius-xl border-bottom-right-radius-xl padding-lg">
            <view class="row-center-center">
                <image class="img-size-xl" src="/static/cart/empty-cart.png" mode="aspectFit"></image>
                <text class="font-size-lg text-color-greyblack">购物车是空的</text>
            </view>
            <view class="row-center-center">
                <text class="empty-button">逛逛秒杀</text>
                <text class="empty-button">看看关注</text>
            </view>
        </view>

        <!-- 非空购物车 -->
        <view v-if="!isEmptyCart">
            <view v-for="(shop, shopIndex) of cartShops" :key="shopIndex"
                class="padding-lg margin-bottom-lg bg-color-white border-radius-xl">
                <!-- 店铺购物车商品 -->
                <!-- 店铺标题 -->
                <view class="" @tap="onShopCheckboxTap(shop)">
                    <label class="row-between-center">
                        <view class="row-center-center">
                            <checkbox class="shop-checkbox" :checked="shop.checked" />
                            <image class="img-size-base border-radius-circle" :src="shop.logo" mode="aspectFit"></image>
                            <text class="font-size-lg">{{shop.name}}</text>
                        </view>
                        <!-- <view class=""></view> -->
                    </label>
                </view>

                <!-- 店铺产品列表 -->
                <view class="row-between-start margin-top-base" v-for="(product, productIndex) of shop.products"
                    :key="productIndex">
                    <view class="product-checkbox" @tap="onProductCheckboxTap(product)">
                        <checkbox :checked="product.checked" />
                    </view>

                    <image class="border-radius-lg product-image" :src="product.image" mode=""></image>
                    <view class="flex-1 column-center-stretch padding-left-lg">
                        <text class="lines-2 font-size-base">{{product.title}}</text>
                        <view class="row-start-center margin-v-side-base">
                            <view
                                class="row-center-center bg-color-grey border-radius-rect-circle padding-side-base padding-v-side-xs">
                                <text v-for="(property, propertyIndex) of product.sku" :key="propertyIndex"
                                    class="font-size-sm">{{property}},</text>
                            </view>
                        </view>

                        <view class="row-between-center">
                            <xg-money camel :size="UNI_FONT_SIZE_XL" :money="product.price"></xg-money>

                            <view class="number-box">
                                <uni-number-box :min="1" :value="product.count"
                                    @change="onNumberBoxChange(product, $event)"></uni-number-box>
                            </view>
                        </view>
                    </view>
                </view>

            </view>
        </view>

        <view class="order-amount-placeholder"></view>
        <view class="row-between-center bg-color-white padding-side-lg order-amount">
            <view class="row-center-center">
                <view class="product-checkbox" @tap="onCheckAllTap">
                    <checkbox :checked="allChecked" />
                </view>
                <text class="font-size-base">全选</text>
                <text class="font-size-lg margin-left-lg">合计:</text>
                <text class="font-size-lg font-weight-bold">￥{{totalAmount.toFixed(2)}}</text>
            </view>

            <view class="bg-color-red border-radius-rect-circle padding-side-lg padding-v-side-base">
                <text class="font-size-lg text-color-white">去结算（{{totalCount}}）</text>
            </view>
        </view>
    </view>
</template>

<script>
    // 获取购物车数据来源
    import data from '@/data/cart/cart';

    import mixin from '@/common/mixin';

    const customData = {
        page: 0
    }

    export default {
        mixins: [mixin],
        data() {
            return {
                isEmptyCart: false,
                loadMoreStatus: 'more',

                shops: [],

            };
        },

        computed: {
            // 全选事件
            allChecked() {
                return this.cartShops.filter(item => item.checked).length === this.cartShops.length;
            },

            // 购物车店铺数据
            cartShops() {
                this.shops.forEach(shop => {
                    const uncheckedProducts = this.filterUncheckedProduct(shop.products);

                    shop.checked = (uncheckedProducts.length === 0);
                })

                return this.shops;
            },

            // 计算数量
            totalCount() {
                let count = 0;

                this.cartShops.forEach(shop => {
                    this.filterCheckedProduct(shop.products).forEach(product => {
                        count += parseInt(product.count);
                    })
                })

                return count;
            },
            // 计算金额
            totalAmount() {
                let amount = 0;

                this.cartShops.forEach(shop => {
                    this.filterCheckedProduct(shop.products).forEach(product => {
                        amount += Number(product.price * product.count)
                    })
                })

                return amount;
            }
        },

        async created() {
            this.loadMoreStatus = 'loading';

            // 获取商铺数据
            const shopPromise = data.shops();

            this.shops = await shopPromise;

        },

        methods: {
            // 过滤选择的商品
            filterCheckedProduct(products) {
                return products.filter(item => item.checked);
            },
            // 过滤未选择的商品
            filterUncheckedProduct(products) {
                return products.filter(item => !item.checked);
            },
            // 店铺勾选
            onShopCheckboxTap(shop) {
                shop.checked = !shop.checked;

                shop.products.forEach(product => {
                    product.checked = shop.checked;
                });
            },
            // 商品勾选
            onProductCheckboxTap(product) {
                product.checked = !product.checked
            },
            // 数量改变
            onNumberBoxChange(product, e) {
                product.count = e;
            },
            // 全选
            onCheckAllTap() {
                const checked = !this.allChecked;
                this.shops.forEach(shop => {
                    shop.products.forEach(product => {
                        product.checked = checked;
                    })
                })
            }

        },
    }
</script>

<style lang="scss" scoped>
    .empty-button {
        @include border(1px solid);

        font-size: $uni-font-size-lg;
        border-radius: $uni-border-radius-rect-circle;
        margin: 0 $uni-spacing-col-xl;
        padding: $uni-spacing-row-sm $uni-spacing-col-xl;
    }

    $order-amount-height: 100rpx;

    .product-list {
        /* #ifdef APP-NVUE */

        @include position(fixed, 0 0 $order-amount-height 0);
        /* #endif */

        // width: 500rpx;
    }

    .shop-checkbox {
        transform: scale(0.8);
    }

    .product-checkbox {
        transform: scale(0.75);
    }

    .product-image {
        width: 200rpx;
        height: 200rpx;
    }

    .number-box {
        transform-origin: 100% 50%;
        transform: scale(0.75);
    }

    .order-amount-placeholder {
        height: $order-amount-height;
    }

    .order-amount {
        /* #ifndef APP-NVUE */
        @include position(fixed, none 0 var(--window-bottom) 0);
        /* #endif */
        /* #ifdef APP-NVUE */
        @include position(fixed, none 0 0 0);
        /* #endif */

        height: $order-amount-height;

        /* #ifndef APP-NVUE */
        z-index: 10000;
        /* #endif */
    }
</style>