


This article mainly introduces examples of how to implement pull-down refresh and pull-up loading on vue2.0 mobile terminal. The content is quite good. I will share it with you now and give it as a reference.
I am building a front-end architecture based on vue2.0 webpack es6 and sorting out some plug-ins. The following is a pull-down update and a pull-up for more. It is very easy to use. I would like to share it with you.
Go directly to the code. If you don’t understand, read it a few times. I will tell you how to use it below.
<template lang="html"> <p class="yo-scroll" :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 class="inner" :style="{ transform: 'translate3d(0, ' + top + 'px, 0)' }"> <header class="pull-refresh"> <slot name="pull-refresh"> <span class="down-tip">下拉更新</span> <span class="up-tip">松开更新</span> <span class="refresh-tip">更新中</span> </slot> </header> <slot></slot> <footer class="load-more"> <slot name="load-more"> <span>加载中……</span> </slot> </footer> </section> </p> </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.$el.querySelector('.load-more').clientHeight let bottom = innerHeight - outerHeight - scrollTop - ptrHeight if (bottom < infiniteHeight) this.infinite() } } } </script> <style> .yo-scroll { position: absolute; top: 2.5rem; right: 0; bottom: 0; left: 0; overflow: auto; -webkit-overflow-scrolling: touch; background-color: #ddd } .yo-scroll .inner { position: absolute; top: -2rem; width: 100%; transition-duration: 300ms; } .yo-scroll .pull-refresh { position: relative; left: 0; top: 0; width: 100%; height: 2rem; display: flex; align-items: center; justify-content: center; } .yo-scroll.touch .inner { transition-duration: 0ms; } .yo-scroll.down .down-tip { display: block; } .yo-scroll.up .up-tip { display: block; } .yo-scroll.refresh .refresh-tip { display: block; } .yo-scroll .down-tip, .yo-scroll .refresh-tip, .yo-scroll .up-tip { display: none; } .yo-scroll .load-more { height: 3rem; display: flex; align-items: center; justify-content: center; } </style>
Copy the above component, save it as a component with the suffix .vue and put it under your component, and then introduce it to the page. The following is what I quoted. Code on demo
: There are comments inside, please leave me a message if you have any questions!
<template> <p> <v-scroll :on-refresh="onRefresh" :on-infinite="onInfinite"> <ul> <li v-for="(item,index) in listdata" >{{item.name}}</li> <li v-for="(item,index) in downdata" >{{item.name}}</li> </ul> </v-scroll> </p> </template> <script> import Scroll from './y-scroll/scroll'; export default{ data () { return { counter : 1, //默认已经显示出15条数据 count等于一是让从16条开始加载 num : 15, // 一次显示多少条 pageStart : 0, // 开始页数 pageEnd : 0, // 结束页数 listdata: [], // 下拉更新数据存放数组 downdata: [] // 上拉更多的数据存放数组 } }, mounted : function(){ this.getList(); }, methods: { getList(){ let vm = this; vm.$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>
The above is the entire content of this article. I hope it will be helpful to everyone’s study. For more related content, please pay attention to the PHP Chinese website!
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