这篇文章主要介绍vue基于better-scroll实现左右联动页面的方法,文中示例代码介绍的非常详细,具有一定的参考价值,感兴趣的小伙伴们一定要看完!
界面如下:
vue模板
<template> <div class="goods"> <div class="menu-wrapper"> <ul> <li class="menu-item" v-for="(good, index) in goods" :key="index" :class="{current: currentIndex===index}" @click="clickMenuItem(index)"> <span class="text bottom-border-1px"> <img :src="good.icon" class="icon" v-if="good.icon"> {{good.name}} </span> </li> </ul> </div> <div class="foods-wrapper"> <ul ref="foodsWrapperUl"> <li class="food-list food-list-hook" v-for="(good, index) in goods" :key="index"> <h2 class="title">{{good.name}}</h2> <ul> <li class="food-item bottom-border-1px" v-for="(food, index) in good.foods" :key="index"> <div class="icon"> <img :src="food.icon" width="57" height="57" alt=""> </div> <div class="content"> <h3 class="name">{{food.name}}</h3> <p class="desc">{{food.description}}</p> <div class="extra"> <span class="count">月售{{food.sellCount}}份</span> <span>好评{{food.rating}}%</span> </div> <div class="price"> <span class="now">¥{{food.price}}</span> <span class="old" v-if="food.oldPrice">¥{{food.oldPrice}}</span> </div> <div class="cartcontrol-wrapper"><cartcontrol :food="food"/></div> </div> </li> </ul> </li> </ul> </div> </div> </template> <script> import BScroll from 'better-scroll' import { mapState } from 'vuex' import CartControl from "../../../components/CartControl/CartControl" export default { data() { return { scrollY: 0, tops: [] } }, mounted () { this.$store.dispatch('getShopGoods', () => { //回调函数,等到action中执行 this.$nextTick(() => { //页面更新后再使用滚动组件,获取DOM高度 this._initScroll(); this._initTops(); }) }) }, methods: { _initScroll() { new BScroll('.menu-wrapper', { click:true }) this.foodsScroll = new BScroll('.foods-wrapper', { probeType: 2, click: true }) this.foodsScroll.on('scroll', (pos) => { this.scrollY = Math.abs(pos.y); }) this.foodsScroll.on('scrollEnd', (pos) => { this.scrollY = Math.abs(pos.y); }) }, _initTops () { const tops = []; let top = 0; tops.push(top); const lis = this.$refs.foodsWrapperUl.getElementByClassName('food-list-hook'); Array.prototype.slice.call(lis).forEach((li, index) => { top += li.clientHeight; tops.push(top); }) this.tops = tops; }, clickMenuItem (index) { const top = this.tops[index]; this.scrollY = top; this.foodsScroll.scrollTo(0, -top, 300) } }, computed: { ...mapState(['goods']), currentIndex () { return this.tops.findIndex((top, index) => { return this.scrollY>=top && this.scrollY<this.tops[index+1] }) } } } </script>//也可以不用计算属性,直接在data中定义currentIndex,改动时赋新值,那页面自然跟着更新
state.js
goods: [], // 商品列表
action.js
//异步获取商品列表 async getShopGoods ({commit}, callback) { const result = await reqShopGoods(); const goods = result.data; commit(RECEIVE_GOODS, {goods}); callback && callback(); }
mutation.js
[RECEIVE_GOODS](state, {goods}) { state.goods = goods }
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