153 lines
4.3 KiB
Vue
153 lines
4.3 KiB
Vue
<template>
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<view class="list">
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<view class="top">商品推荐</view>
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<view>
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<u-tabs-swiper ref="uTabs" :list="classifyList" name="gc_name" :is-scroll="true" active-color="#FF780F" :current="current" font-size="24" :show-bar="false" @change="tabsChange" height="60"></u-tabs-swiper>
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</view>
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<swiper class="swiper-box" :current="swiperCurrent" @transition="transition" @animationfinish="animationfinish" :style="{height: swiperHeight}">
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<swiper-item class="swiper-item" v-for="(_, index) in classifyList" :key="index">
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<view class="goods-item" v-if="goodsList.length">
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<item v-for="item in goodsList" :key="item.goods_id" :info="item"></item>
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</view>
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<u-empty text="暂无商品" mode="list" color="#000" margin-top="20" v-else></u-empty>
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</swiper-item>
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</swiper>
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<!-- 加载更多 -->
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<u-loadmore :status="loadStatus" bgColor="#FFF" margin-top="20" margin-bottom="20" @loadmore="loadMore" v-if="goodsList.length>=pageSize"></u-loadmore>
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</view>
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</template>
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<script>
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import item from "./item";
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export default {
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name:"list",
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data() {
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return {
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pageSize: 12,
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current: -1,
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swiperCurrent: 0,
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goodsList: [],
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classifyList: [],
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swiperHeight: '',
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page: 1, // 从 1 开始
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loadStatus: 'loadmore',
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timer: true,
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}
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},
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components: {
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item,
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},
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watch: {
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current(index) {
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this.page = 1;
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this.goodsList = [];
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const id = this.classifyList[index].gc_id;
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this.getGoodsRecommend({gc_id: id});
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}
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},
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created() {
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this.getGoodsClassRecommend();
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},
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methods: {
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loadMore(page) {
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if(!this.timer) return false;
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this.loadStatus = "loading";
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this.page++;
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this.getGoodsRecommend({
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gc_id: this.classifyList[this.current].gc_id,
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page: this.page,
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reload: false,
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}).then(length => {
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// console.log(length);
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if(length == 0) {
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this.page--;
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this.loadStatus = 'nomore';
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} else {
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this.loadStatus = 'loadmore';
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}
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}).catch(() => {
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this.loadStatus = "nomore";
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this.page--;
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})
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},
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getGoodsClassRecommend() {
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this.$u.api.getGoodsClassRecommend().then(res => {
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if (res.errCode == 0) {
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// 初始化 current
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this.current = 0;
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this.classifyList = res.data.gc_recommend;
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}
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})
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},
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async getGoodsRecommend({ page = this.page, gc_id, reload = true } = {}) {
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const res = await this.$u.api.getGoodsRecommend({
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page: page,
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gc_id: gc_id,
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})
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// this.swiperCurrent = this.current;
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if (res.errCode == 0) {
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this.timer = true;
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if(reload) this.goodsList = res.data.goodsList;
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else this.goodsList.push(...res.data.goodsList);
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// console.log(this.goodsList);
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this.setSwiperHeight();
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}
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return res.data.goodsList.length;
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},
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setSwiperHeight() {
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// height: 230px, margin-bottom: 13
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const height = Math.ceil(this.goodsList.length / 2) * (540 + 26);
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this.swiperHeight = height == 0 ? '230rpx' : height + 'rpx';
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// this.swiperHeight = Math.ceil(this.goodsList.length / 2) * (270 + 13) + 'px';
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},
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// tabs通知swiper切换
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tabsChange(index) {
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this.current = index;
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// this.getGoodsRecommend({ gc_id: this.classifyList[this.current].gc_id });
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},
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// swiper-item左右移动，通知tabs的滑块跟随移动
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transition(e) {
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let dx = e.detail.dx;
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this.$refs.uTabs.setDx(dx);
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},
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// 由于swiper的内部机制问题，快速切换swiper不会触发dx的连续变化，需要在结束时重置状态
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// swiper滑动结束，分别设置tabs和swiper的状态
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animationfinish(e) {
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let current = e.detail.current;
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this.$refs.uTabs.setFinishCurrent(current);
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this.current = current;
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this.swiperCurrent = current;
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// this.getGoodsRecommend({ gc_id: this.classifyList[this.current].gc_id });
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},
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}
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}
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</script>
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<style lang="scss" scoped>
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.list{
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background-color: #ffffff;
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padding: 30rpx {
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top: 0;
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};
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.top {
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font-size: 30rpx;
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height: 74rpx;
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line-height: 88rpx;
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text-align: center;
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color: #333;
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}
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.swiper-box {
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height: 100%;
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margin-bottom: 10rpx;
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.swiper-item {
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// height: 100%;
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.goods-item {
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display: flex;
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flex-wrap: wrap;
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justify-content: space-between;
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width: 100%;
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// height: 100%;
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overflow-y: scroll;
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}
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}
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}
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}
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</style> |