shuzi/pages/product/list.vue

<template>
	<view class="content">
		<view class="navbar" :style="{ position: headerPosition, top: headerTop }">
			<view class="nav-item" :class="{ current: filterIndex === 0 }" @click="tabClick(0)">综合排序</view>
			<view class="nav-item" :class="{ current: filterIndex === 1 }" @click="tabClick(1)">
				<text>销量优先</text>
				<view class="p-box">
					<text :class="{ active: numberOrder === 1 && filterIndex === 1 }" class="iconfont iconfold"></text>
					<text :class="{ active: numberOrder === 2 && filterIndex === 1 }"
						class="iconfont iconfold xia"></text>
				</view>
			</view>
			<view class="nav-item" :class="{ current: filterIndex === 2 }" @click="tabClick(2)">
				<text>价格</text>
				<view class="p-box">
					<text :class="{ active: priceOrder === 1 && filterIndex === 2 }" class="iconfont iconfold"></text>
					<text :class="{ active: priceOrder === 2 && filterIndex === 2 }"
						class="iconfont iconfold xia"></text>
				</view>
			</view>
			<text class="cate-item iconfont iconapps" @click="toggleCateMask('show')"></text>
		</view>
		<view class="goods-list">
			<view v-for="(item, index) in goodsList" :key="index" class="goods-item" @click="navToDetailPage(item)">
				<view class="image-wrapper">
					<image :src="item.image" mode="aspectFill"></image>
				</view>
				<text class="title clamp">{{ item.title }}</text>
				<view class="price-box">
					<text class="price">{{ item.price }}</text>
					<text>已售 {{ item.sales }}</text>
				</view>
			</view>
		</view>
		<uni-load-more :status="loadingType"></uni-load-more>

		<view class="cate-mask" :class="cateMaskState === 0 ? 'none' : cateMaskState === 1 ? 'show' : ''"
			@click="toggleCateMask">
			<view class="cate-content" @click.stop.prevent="stopPrevent" @touchmove.stop.prevent="stopPrevent">
				<scroll-view scroll-y class="cate-list">
					<view v-for="item in cateList" :key="item.id">
						<view class="cate-item b-b two">{{ item.cate_name }}</view>
						<view v-for="tItem in item.children" :key="tItem.id" class="cate-item b-b"
							:class="{ active: tItem.id == cateId }" @click="changeCate(tItem)">
							{{ tItem.cate_name }}
						</view>
					</view>
				</scroll-view>
			</view>
		</view>
	</view>
</template>

<script>
	import uniLoadMore from '@/components/uni-load-more/uni-load-more.vue';
	import {
		getProducts
	} from '@/api/product.js';
	import {
		getCategoryList
	} from '@/api/product.js';
	export default {
		components: {
			uniLoadMore
		},
		data() {
			return {
				cateMaskState: 0, //分类面板展开状态
				headerPosition: 'fixed',
				headerTop: '0px',
				loadingType: 'more', //加载更多状态
				filterIndex: 0, //查询类型
				numberOrder: 0, //1 销量从低到高 2销量从高到低
				limit: 6, //每次加载数据条数
				page: 0, //当前页数
				cateId: 0, //已选三级分类id
				priceOrder: 0, //1 价格从低到高 2价格从高到低
				cateList: [], //分类列表
				goodsList: [] //商品列表
			};
		},

		onLoad(options) {
			// #ifdef H5
			this.headerTop = document.getElementsByTagName('uni-page-head')[0].offsetHeight + 'px';
			// #endif
			this.cateId = options.tid;
			this.loadCateList(options.fid, options.sid);
			this.loadData();
		},
		onPageScroll(e) {
			//兼容iOS端下拉时顶部漂移
			if (e.scrollTop >= 0) {
				this.headerPosition = 'fixed';
			} else {
				this.headerPosition = 'absolute';
			}
		},
		//下拉刷新
		onPullDownRefresh() {
			this.loadData('refresh');
		},
		//监听页面是否滚动到底部加载更多
		onReachBottom() {
			this.loadData();
		},
		methods: {
			//加载分类
			async loadCateList(fid, sid) {
				let obj = this;
				getCategoryList({}).then(function(e) {
					console.log(e);
					e.data.forEach(function(e) {
						if (e.id == fid) {
							obj.cateList = e.children;
							return;
						}
					});
					console.log(obj.cateList);
				});
			},
			//加载商品 ，带下拉刷新和上滑加载
			async loadData(type = 'add', loading) {
				let obj = this;
				let data = {
					page: obj.page,
					limit: obj.limit,
					sid: obj.cateId //分类id
				};
				//没有更多直接返回
				if (type === 'add') {
					if (obj.loadingType === 'nomore') {
						return;
					}
					obj.loadingType = 'loading';
				} else {
					obj.loadingType = 'more';
				}
				if (type === 'refresh') {
					// 清空数组
					obj.goodsList = [];
					obj.page = 1
				}
				if (this.filterIndex == 1) {
					console.log(obj.salesOrder);
					data.salesOrder = obj.numberOrder == 1 ? 'asc' : 'desc';
				}
				if (this.filterIndex == 2) {
					console.log(obj.priceOrder);
					data.priceOrder = obj.priceOrder == 1 ? 'asc' : 'desc';
				}
				getProducts(data).then(function(e) {
					console.log(e.data);
					obj.goodsList = obj.goodsList.concat(e.data);
					//判断是否还有下一页，有是more  没有是nomore
					if (obj.limit == e.data.length) {
						obj.page++
						obj.loadingType = 'more'
					} else {
						obj.loadingType = 'nomore'
					}
					if (type === 'refresh') {
						if (loading == 1) {
							uni.hideLoading();
						} else {
							uni.stopPullDownRefresh();
						}
					}
				});
			},
			//筛选点击
			tabClick(index) {
				// 防止重复点击综合排序
				if (this.filterIndex === 0 && this.filterIndex === index) {
					return;
				}
				this.filterIndex = index;
				// 判断是否为销量优先
				if (index === 1) {
					this.numberOrder = this.numberOrder === 1 ? 2 : 1;
				}
				// 判断是否为价格优先
				if (index === 2) {
					this.priceOrder = this.priceOrder === 1 ? 2 : 1;
				}
				// 初始化页数
				this.page = 1;
				// 初始化数组
				uni.pageScrollTo({
					duration: 300,
					scrollTop: 0
				});
				this.loadData('refresh', 1);
				uni.showLoading({
					title: '正在加载'
				});
			},
			//显示分类面板
			toggleCateMask(type) {
				let timer = type === 'show' ? 10 : 300;
				let state = type === 'show' ? 1 : 0;
				this.cateMaskState = 2;
				setTimeout(() => {
					this.cateMaskState = state;
				}, timer);
			},
			//分类点击
			changeCate(item) {
				this.cateId = item.id;
				// 显示右侧分类
				this.toggleCateMask();
				// 滚轮返回顶部
				uni.pageScrollTo({
					duration: 300,
					scrollTop: 0
				});
				// 初始化查询页数
				this.page = 1
				// 重新加载数据
				this.loadData('refresh', 1);
				uni.showLoading({
					title: '正在加载'
				});
			},
			//详情
			navToDetailPage(item) {
				let id = item.id;
				uni.navigateTo({
					url: `/pages/product/product?id=${id}`
				});
			},
			stopPrevent() {}
		}
	};
</script>

<style lang="scss">
	page,
	.content {
		background: $page-color-base;
	}

	.content {
		padding-top: 96rpx;
	}

	.navbar {
		position: fixed;
		left: 0;
		top: var(--window-top);
		display: flex;
		width: 100%;
		height: 80rpx;
		background: #fff;
		box-shadow: 0 2rpx 10rpx rgba(0, 0, 0, 0.06);
		z-index: 10;

		.nav-item {
			flex: 1;
			display: flex;
			justify-content: center;
			align-items: center;
			height: 100%;
			font-size: 30rpx;
			color: $font-color-dark;
			position: relative;

			&.current {
				color: $base-color;

				&:after {
					content: '';
					position: absolute;
					left: 50%;
					bottom: 0;
					transform: translateX(-50%);
					width: 120rpx;
					height: 0;
					border-bottom: 4rpx solid $base-color;
				}
			}
		}

		.p-box {
			display: flex;
			flex-direction: column;

			.iconfont {
				display: flex;
				align-items: center;
				justify-content: center;
				width: 30rpx;
				height: 14rpx;
				line-height: 1;
				margin-left: 4rpx;
				font-size: 26rpx;
				color: #888;

				&.active {
					color: $base-color;
				}
			}

			.xia {
				transform: scaleY(-1);
			}
		}

		.cate-item {
			display: flex;
			justify-content: center;
			align-items: center;
			height: 100%;
			width: 80rpx;
			position: relative;
			font-size: 44rpx;

			&:after {
				content: '';
				position: absolute;
				left: 0;
				top: 50%;
				transform: translateY(-50%);
				border-left: 1px solid #ddd;
				width: 0;
				height: 36rpx;
			}
		}
	}

	/* 分类 */
	.cate-mask {
		position: fixed;
		left: 0;
		top: var(--window-top);
		bottom: 0;
		width: 100%;
		background: rgba(0, 0, 0, 0);
		z-index: 95;
		transition: 0.3s;

		.cate-content {
			width: 630rpx;
			height: 100%;
			background: #fff;
			float: right;
			transform: translateX(100%);
			transition: 0.3s;
		}

		&.none {
			display: none;
		}

		&.show {
			background: rgba(0, 0, 0, 0.4);

			.cate-content {
				transform: translateX(0);
			}
		}
	}

	.cate-list {
		display: flex;
		flex-direction: column;
		height: 100%;
	
	.cate-item {
			display: flex;
			align-items: center;
			height: 90rpx;
			padding-left: 30rpx;
			font-size: 28rpx;
			color: #555;
			position: relative;
		}

		.two {
			height: 64rpx;
			color: #303133;
			font-size: 30rpx;
			background: #f8f8f8;
		}

		.active {
			color: $base-color;
		}
	}

	/* 商品列表 */
	.goods-list {
		display: flex;
		flex-wrap: wrap;
		padding: 0 30rpx;
		background: #fff;

		.goods-item {
			display: flex;
			flex-direction: column;
			width: 48%;
			padding-bottom: 40rpx;

			&:nth-child(2n + 1) {
				margin-right: 4%;
			}
		}

		.image-wrapper {
			width: 100%;
			height: 330rpx;
			border-radius: 3px;
			overflow: hidden;

			image {
				width: 100%;
				height: 100%;
				opacity: 1;
			}
		}

		.title {
			font-size: $font-lg;
			color: $font-color-dark;
			line-height: 80rpx;
		}

		.price-box {
			display: flex;
			align-items: center;
			justify-content: space-between;
			padding-right: 10rpx;
			font-size: 24rpx;
			color: $font-color-light;
		}

		.price {
			font-size: $font-lg;
			color: $uni-color-primary;
			line-height: 1;

			&:before {
				content: '￥';
				font-size: 26rpx;
			}
		}
	}
</style>