vue实现列表滚动的过渡动画

<div class="area-wrapper" ref="areaWrapper">
 <div v-for="(item, index) in areaList" :key="index"
 @click="clickAreaItem(item.id)"
 :ref="'area-' + index" class="area"
 :style="{ backgroundImage: 'url('+item.thumbUrl+')', 'opacity': (index < startIndex || index > endIndex) ">
  <div class="content">
  <h2 class="num">{{item.num}}</h2>
  <div style="vertical-align:text-bottom">
   <p class="name">{{item.name}}</p>
   <p class="desc">{{item.desc}}</p>
  </div>
  </div>
 </div>
</div>

const AreaItemHeight = 119 // 每一项的高度（这里默认一致，如果不一致请自行修改startIndex、endIndex的计算方式）
const MarginBottom = 15  // 列表项的底部边距
const TopHeight = 160  // banner的高度
const BottomHeight = 50  // 底部Tab的高度

scroll (position) {
 const scrollY = position.y
 if (scrollY < 0) {
  // startIndex计算
  const currentStartIndex = Math.abs(scrollY) <= TopHeight "htmlcode">

runAnimation (index) {
 animations.registerAnimation({
  name: 'scale',
  animation: [
   {
   scale: 0.5,
   opacity: 0
   },
   {
   scale: 1,
   opacity: 1
   }
  ],
  presets: {
   duration: 300,
   resetWhenDone: true
  }
 })
 animations.runAnimation(this.$refs['area-' + index], 'scale')
}


完整代码
.vue文件


<template>
<div class="address-wrapper" style="height: 100%;">
 <scroll ref="scroll" class="address-content" :data="areaList" @scroll="scroll" :listen-scroll="listenScroll" :probe-type="probeType" :bounce="false">
 <div>
  <div v-if="bannerList.length" style="position: relative;">
  <slider :list="bannerList">
   <div v-for="item in bannerList" :key="item.id" :style="{height: sliderHeight + 'px'}">
   <img class="needsclick" :src="/UploadFiles/2021-04-02/item.thumbUrl">

本地json文件,请自行修改图片路径
bannerAddress.json


[
 {
 "id": 1,
 "contentId": 111111,
 "type": 1,
 "thumbUrl": "./static/img/banner/banner_address_1.jpg"
 },
 {
 "id": 2,
 "contentId": 111111,
 "type": 1,
 "thumbUrl": "./static/img/banner/banner_address_2.jpg"
 },
 {
 "id": 3,
 "contentId": 111111,
 "type": 1,
 "thumbUrl": "./static/img/banner/banner_address_3.jpg"
 }
]


areaList.json


[
 {
 "id": "ba062c32fdf611e7ba2d00163e0c27f8",
 "name": "凯里",
 "desc": "这是凯里哟~",
 "num": 17,
 "thumbUrl": "./static/img/area/kaili.png"
 }, {
 "id": "ba5287a7fdf611e7ba2d00163e0c27f8",
 "name": "丹寨",
 "desc": "这是丹寨哟~",
 "num": 8,
 "thumbUrl": "./static/img/area/danzai.png"
 }, {
 "id": "ba9da079fdf611e7ba2d00163e0c27f8",
 "name": "麻江",
 "desc": "这是麻江哟~",
 "num": 12,
 "thumbUrl": "./static/img/area/majiang.png"
 }, {
 "id": "baeb0926fdf611e7ba2d00163e0c27f8",
 "name": "黄平",
 "desc": "这是黄平哟~",
 "num": 7,
 "thumbUrl": "./static/img/area/huangping.png"
 }, {
 "id": "bb357191fdf611e7ba2d00163e0c27f8",
 "name": "施秉",
 "desc": "这是施秉哟~",
 "num": 6,
 "thumbUrl": "./static/img/area/shibing.png"
 }, {
 "id": "bb842d8ffdf611e7ba2d00163e0c27f8",
 "name": "镇远",
 "desc": "这是镇远哟~",
 "num": 3,
 "thumbUrl": "./static/img/area/zhenyuan.png"
 }, {
 "id": "bbce67dffdf611e7ba2d00163e0c27f8",
 "name": "岑巩",
 "desc": "这是岑巩哟~",
 "num": 23,
 "thumbUrl": "./static/img/area/cengong.png"
 }, {
 "id": "bc198ca9fdf611e7ba2d00163e0c27f8",
 "name": "三穗",
 "desc": "这是三穗哟~",
 "num": 66,
 "thumbUrl": "./static/img/area/sansui.png"
 }, {
 "id": "bc64498bfdf611e7ba2d00163e0c27f8",
 "name": "天柱",
 "desc": "这是天柱哟~",
 "num": 128,
 "thumbUrl": "./static/img/area/tianzhu.png"
 }, {
 "id": "bcaf466bfdf611e7ba2d00163e0c27f8",
 "name": "锦屏",
 "desc": "这是锦屏哟~",
 "num": 107,
 "thumbUrl": "./static/img/area/jinping.png"
 }, {
 "id": "bcfa6f1bfdf611e7ba2d00163e0c27f8",
 "name": "黎平",
 "desc": "这是黎平哟~",
 "num": 211,
 "thumbUrl": "./static/img/area/liping.png"
 }, {
 "id": "bd44cca9fdf611e7ba2d00163e0c27f8",
 "name": "从江",
 "desc": "这是从江哟~",
 "num": 17,
 "thumbUrl": "./static/img/area/congjiang.png"
 }, {
 "id": "bd8f5cd4fdf611e7ba2d00163e0c27f8",
 "name": "榕江",
 "desc": "这是榕江哟~",
 "num": 17,
 "thumbUrl": "./static/img/area/rongjiang.png"
 }, {
 "id": "bdda2928fdf611e7ba2d00163e0c27f8",
 "name": "雷山",
 "desc": "这是雷山哟~",
 "num": 17,
 "thumbUrl": "./static/img/area/leishan.png"
 }, {
 "id": "be25afc0fdf611e7ba2d00163e0c27f8",
 "name": "台江",
 "desc": "这是台江哟~",
 "num": 17,
 "thumbUrl": "./static/img/area/taijiang.png"
 }, {
 "id": "be702db5fdf611e7ba2d00163e0c27f8",
 "name": "剑河",
 "desc": "这是剑河哟~",
 "num": 17,
 "thumbUrl": "./static/img/area/jianhe.png"
 }
]


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