转自：/gmajip/p/7204072.html
: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">
下拉更新
松开更新
更新中……
{{loadingText}}
export default {
props: {
offset: {
type: Number,
default: 40
},
loadingText: {
type: String,
default: '加载中...'
},
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
this.infiniteLoading = false
},
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()
}
}
}
.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;
}
把上面组件拷贝一下，保存vue文件pull-refresh.vue放到你的component/common文件夹下， 然后引入到页面 , 下面是引用demo
{{item.title}}
import { AjaxPlugin, XButton,Group, Cell, XInput} from 'vux'
import Scroll from '../../common/pull-refresh';
export default {
name: 'home',
components: {
'v-scroll': Scroll,
Group,
XButton,
Cell,
XInput,
AjaxPlugin
},
data () {
return {
articleList:this.getArticleList(1),
loadingText:'加载中...',
counter : 1, //当前页面
num : 20, // 一次显示多少条
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.getArticleList();
},
methods: {
getArticleList: function (catId) {
let _this = this
getDate('/index.php',{params:{m:'jsonp',c:'index',a:'lists',catid:59}},function(data){
let arr = data.result.data;
_this.articleList=arr;
if(arr.length>=_this.num){
_this.counter++;
}
})
return []
},
onRefresh(done) {
let vm = this;
vm.loadingText='加载中……';
getDate('/index.php',{params:{m:'jsonp',c:'index',a:'lists',catid:59}},function(data){
let arr = data.result.data;
vm.articleList=arr;
if(arr.length>=vm.num){
vm.counter=2;
}
done() // call done
})
},
onInfinite(done) {
let vm = this;
getDate('/index.php',{params:{m:'jsonp',c:'index',a:'lists',catid:59,page:vm.counter}},function(data){
let arr = data.result.data;
vm.articleList=vm.articleList.concat(arr);
if(arr.length
vm.loadingText='加载完毕……';
//vm.$el.querySelector('.load-more').style.display = 'none';
return;
}else{
vm.counter++;
}
done() // call done
})
}
}
}
function getDate(url,params,fn) {
AjaxPlugin.$http.get(url, params)
.then((response) => {
if (fn) fn(response.data)
})
}
function htttpRequest (url, params, cb) {
let dataStr = ''
for (let key in params) {
dataStr += key + '=' + params[key]
}
dataStr = dataStr.substr(0, dataStr.length - 1)
console.log(dataStr);
AjaxPlugin.$http.post(url, params)
.then((response) => {
if (cb) cb(response.data)
})
}
h1, h2 {
font-weight: normal;
}
ul {
list-style-type: none;
padding: 0;
}
li {
flex: 1;
margin: 10px ;
border-bottom:#ddd solid 1px;
}
a {
color: #42b983;
}
