vue2.0 移动端实现下拉刷新和上拉加载更多的示例

本人正在基于 vue2.0 + webpack + es6 搭建前端架构,整理了部分插件,下面这个是下拉更新 上拉更多的,挺好用的,分享给大家。

直接上代码,不懂的多看几遍,下面我换会告诉大家如何使用。

<template lang="html"> <div :class="{'down':(state===0),'up':(state==1),refresh:(state===2),touch:touching}" @touchstart="touchStart($event)" @touchmove="touchMove($event)" @touchend="touchEnd($event)" @scroll="(onInfinite || infiniteLoading) ? onScroll($event) : undefined"> <section :style="{ transform: 'translate3d(0, ' + top + 'px, 0)' }"> <header> <slot> <span>下拉更新</span> <span>松开更新</span> <span>更新中</span> </slot> </header> <slot></slot> <footer> <slot> <span>加载中……</span> </slot> </footer> </section> </div> </template> <script> export default { props: { offset: { type: Number, default: 40 }, enableInfinite: { type: Boolean, default: true }, enableRefresh: { type: Boolean, default: true }, onRefresh: { type: Function, default: undefined, required: false }, onInfinite: { type: Function, default: undefined, require: false } }, data() { return { top: 0, state: 0, startY: 0, touching: false, infiniteLoading: false } }, methods: { touchStart(e) { this.startY = e.targetTouches[0].pageY this.startScroll = this.$el.scrollTop || 0 this.touching = true }, touchMove(e) { if (!this.enableRefresh || this.$el.scrollTop > 0 || !this.touching) { return } let diff = e.targetTouches[0].pageY - this.startY - this.startScroll if (diff > 0) e.preventDefault() this.top = Math.pow(diff, 0.8) + (this.state === 2 ? this.offset : 0) if (this.state === 2) { // in refreshing return } if (this.top >= this.offset) { this.state = 1 } else { this.state = 0 } }, touchEnd(e) { if (!this.enableRefresh) return this.touching = false if (this.state === 2) { // in refreshing this.state = 2 this.top = this.offset return } if (this.top >= this.offset) { // do refresh this.refresh() } else { // cancel refresh this.state = 0 this.top = 0 } }, refresh() { this.state = 2 this.top = this.offset this.onRefresh(this.refreshDone) }, refreshDone() { this.state = 0 this.top = 0 }, infinite() { this.infiniteLoading = true this.onInfinite(this.infiniteDone) }, infiniteDone() { this.infiniteLoading = false }, onScroll(e) { if (!this.enableInfinite || this.infiniteLoading) { return } let outerHeight = this.$el.clientHeight let innerHeight = this.$el.querySelector('.inner').clientHeight let scrollTop = this.$el.scrollTop let ptrHeight = this.onRefresh ? this.$el.querySelector('.pull-refresh').clientHeight : 0 let infiniteHeight = this.$el.querySelector('.load-more').clientHeight let bottom = innerHeight - outerHeight - scrollTop - ptrHeight if (bottom < infiniteHeight) this.infinite() } } } </script> <style> .yo-scroll { position: absolute; top: 2.5rem; right: 0; bottom: 0; left: 0; overflow: auto; -webkit-overflow-scrolling: touch; background-color: #ddd } .yo-scroll .inner { position: absolute; top: -2rem; width: 100%; transition-duration: 300ms; } .yo-scroll .pull-refresh { position: relative; left: 0; top: 0; width: 100%; height: 2rem; display: flex; align-items: center; justify-content: center; } .yo-scroll.touch .inner { transition-duration: 0ms; } .yo-scroll.down .down-tip { display: block; } .yo-scroll.up .up-tip { display: block; } .yo-scroll.refresh .refresh-tip { display: block; } .yo-scroll .down-tip, .yo-scroll .refresh-tip, .yo-scroll .up-tip { display: none; } .yo-scroll .load-more { height: 3rem; display: flex; align-items: center; justify-content: center; } </style>

把上面组件拷贝一下,存成后缀是.vue的组件放到你的component下,  然后引入到页面 , 下面是我引用的demo

上代码: 里面有注释哦,有问题给我留言!

<template> <div> <v-scroll :on-refresh="onRefresh" :on-infinite="onInfinite"> <ul> <li v-for="(item,index) in listdata" >{{item.name}}</li> <li v-for="(item,index) in downdata" >{{item.name}}</li> </ul> </v-scroll> </div> </template> <script> import Scroll from './y-scroll/scroll'; export default{ data () { return { counter : 1, //默认已经显示出15条数据 count等于一是让从16条开始加载 num : 15, // 一次显示多少条 pageStart : 0, // 开始页数 pageEnd : 0, // 结束页数 listdata: [], // 下拉更新数据存放数组 downdata: [] // 上拉更多的数据存放数组 } }, mounted : function(){ this.getList(); }, methods: { getList(){ let vm = this; vm.$http.get('https://api.github.com/repos/typecho-fans/plugins/contents/').then((response) => { vm.listdata = response.data.slice(0,15); }, (response) => { console.log('error'); }); }, onRefresh(done) { this.getList(); done() // call done }, onInfinite(done) { let vm = this; vm.$http.get('https://api.github.com/repos/typecho-fans/plugins/contents/').then((response) => { vm.counter++; vm.pageEnd = vm.num * vm.counter; vm.pageStart = vm.pageEnd - vm.num; let arr = response.data; let i = vm.pageStart; let end = vm.pageEnd; for(; i<end; i++){ let obj ={}; obj["name"] = arr[i].name; vm.downdata.push(obj); if((i + 1) >= response.data.length){ this.$el.querySelector('.load-more').style.display = 'none'; return; } } done() // call done }, (response) => { console.log('error'); }); } }, components : { 'v-scroll': Scroll } } </script>

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