基于Vue和原生javascript封装的下拉刷新上拉加载组件,供大家参考,具体内容如下 upTilte插槽是下拉刷新的自定义内容放的地方 downTilte插槽是
基于Vue和原生javascript封装的下拉刷新上拉加载组件,供大家参考,具体内容如下
组件代码如下
<template>
<div class="refresh" id="refresh">
<slot name="upTilte"></slot>
<slot></slot>
<slot name="downTilte"></slot>
</div>
</template>
<script>
export default {
name: 'PullupOrPulldownRefresh',
props: {
// 最大移动距离
maxMove: {
type: Number,
default: 300
},
// 阻尼系数
friction: {
type: Number,
default: 0.3
}
},
data() {
return {
startY: 0,
ul: null,
draw: null,
up: null,
down: null,
y: 0 // 惯性回弹的距离
}
},
mounted() {
this.$nextTick(() => {
this.draw = document.getElementById('refresh')
this.ul = this.draw.children[1]
this.up = this.draw.children[0]
this.down = this.draw.children[2]
this.draw.addEventListener('touchstart', this.touchstart)
this.draw.addEventListener('touchmove', this.touchmoveEvent)
this.draw.addEventListener('touchend', this.touchendEvent)
})
},
methods: {
// 触摸开始事件
touchstart(event) {
this.startY = event.changedTouches[0].clientY
},
// 触摸移动事件
touchmoveEvent(event) {
const height = this.ul.clientHeight - this.draw.clientHeight
if (height === this.draw.scrollTop || this.draw.scrollTop === 0) {
var a = event.changedTouches[0].clientY - this.startY
this.y = a <= this.maxMove ? a : this.maxMove
// 为了清除卡顿问题,需要清除过渡效果
this.ul.style.transition = 'none'
this.ul.style.transfORM = 'translateY(' + this.friction * this.y + 'px)'
// 修改状态
const upHeight = -this.up.clientHeight + this.friction * this.y
// 下拉开始
if (this.friction * this.y > 0) (this.setStatus(this.friction * this.y), this.up.style.transition = 'none', this.up.style.transform = 'translateY(' + upHeight + 'px) translateX(-50%)')
// 上拉开始
if (this.friction * this.y < 0) (this.setStatus(this.friction * this.y), this.down.style.transition = 'none', this.down.style.marginTop = this.friction * this.y + 'px')
}
},
// 触摸结束事件
touchendEvent(event) {
if (this.friction * this.y >= 50) this.$emit('RefreshUp', this.friction * this.y)
else if (this.friction * this.y < -50) this.$emit('RefreshDown', this.friction * this.y)
else this.resetStyle()
},
// 重置并且添加过渡效果
resetStyle() {
this.ul.style.transition = 'transform .6s'
this.ul.style.transform = 'translateY(' + 0 + 'px)'
this.up.style.transition = 'all .6s'
this.up.style.transform = 'translateY(-' + this.up.clientHeight + 'px) translateX(-50%)'
this.down.style.transition = 'all .6s'
this.down.style.marginTop = -this.down.clientHeight + 'px'
},
// 设置刷新状态
setStatus(y) {
this.$emit('setStatus', y)
}
}
}
</script>
<style lang="sCSS">
.refresh {
width: 100%;
height: 100vh;
border: 2px solid #ccc;
position: relative;
overflow: hidden;
overflow: auto;
position: fixed;
ul {
zoom: 1;
padding: 0 10%;
}
ul::after {
content: '';
display: block;
visibility: hidden;
height: 0;
clear: both;
}
li {
list-style: none;
width: 100%;
height: 50px;
line-height: 50px;
text-align: center;
}
.UpRefresh {
position: absolute;
left: 50%;
transform: translateX(-50%);
z-index: -9;
}
.DownRefresh {
position: relative;
left: 50%;
transform: translateX(-50%);
margin-top: -10px;
z-index: -9;
}
}
</style>
<template>
<div>
<PullupOrPulldownRefresh
ref="PullupOrPulldownRefresh"
:maxMove="maxMove"
:friction="friction"
@RefreshUp="RefreshUp"
@RefreshDown="RefreshDown"
@setStatus="setStatus"
>
<template v-slot:upTilte>
<!-- <div class="UpRefresh" v-show="isUpRefresh">{{ Uptitle }}</div> -->
<div class="UpRefresh" v-show="isUpRefresh">
<img :src="require('@/assets/loGo.png')" alt="" />
<p>{{ Uptitle }}</p>
</div>
</template>
<ul>
<li
v-for="(item, index) in data"
:key="index"
style="background: orange"
>
{{ item }}
</li>
</ul>
<template v-slot:downTilte>
<div class="DownRefresh" v-show="isDownRefresh">{{ Downtitle }}</div>
</template>
</PullupOrPulldownRefresh>
</div>
</template>
<script>
export default {
data() {
return {
maxMove: 300,
friction: 0.3,
data: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10],
isUpRefresh: false,
isDownRefresh: false,
Downtitle: '上拉加载更多',
Uptitle: '下拉刷新'
}
},
methods: {
setStatus(y) {
if (y && y > 0) {
this.isUpRefresh = true
this.Uptitle = '下拉刷新'
if (y >= 50) this.Uptitle = '松手刷新'
return
}
this.isDownRefresh = true
this.Downtitle = '上拉加载更多'
if (y <= -50) this.Downtitle = '松手加载更多'
},
RefreshUp(y) {
if (!y) return
if (y >= 50) {
this.Uptitle = '正在刷新'
setTimeout(() => {
for (var i = 1; i <= 10; i++) {
this.data.push(this.data[this.data.length - 1] + 1)
}
this.$refs.PullupOrPulldownRefresh.resetStyle() // 回弹重置
}, 1000)
}
},
RefreshDown(y) {
if (!y) return
if (y <= -50) {
this.Downtitle = '正在加载'
setTimeout(() => {
for (var i = 1; i <= 10; i++) {
this.data.push(this.data[this.data.length - 1] + 1)
}
this.$refs.PullupOrPulldownRefresh.resetStyle() // 回弹重置
}, 1000)
}
}
}
}
</script>
<style scoped lang="scss">
.UpRefresh img{
width: 30px;
}
</style>
--结束END--
本文标题: 基于vue封装下拉刷新上拉加载组件
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