一个简单的适用于Vue的下拉刷新,触底加载组件

一个简单的适用于Vue的上拉刷新,触底加载组件,没有发布npm需要时直接粘贴定制修改即可

<template>
<div class="list-warp-template"
@touchstart="handlerStart"
@touchend="handlerEnd"
@touchmove="handlerMove"
@scroll="handlerScroll"
ref="listWrapRef">
<div class="top-refresh" :style="{height: refresh.height + 'px'}">
<div v-show="refresh.height > 30">
{{refreshLoading ? '刷新中' : '松开刷新'}}
</div>
</div>
<div class="main-list">
<slot></slot>
</div>
<div class="bottom-loading" v-show="bottomLoading">加载中</div>
</div>
</template>
<script>
let timer = null
export default {
name: "ListWrap",
props: {
refreshLoading: {
type: Boolean,
default: false
}
},
data() {
return {
position: 0,
startInit: 0,
bottomLoading: false,
refresh: {
height: 0
}
}
},
created() {
},
watch: {
refreshLoading(val) {
if (!val) {
this.refresh.height = 0
}
}
},
computed: {},
mounted() {
},
methods: {
handlerScroll(e) {
const eDom = e.target
const scrollTop = e.target.scrollTop
// 判断是否到底了
let scrollPosition = eDom.scrollHeight - e.target.offsetHeight
if (timer) {
clearTimeout(timer)
}
// console.log(scrollPosition)
// console.log(scrollTop)
timer = setTimeout(() => {
this.bottomLoading = true
if (scrollPosition <= scrollTop) {
this.$emit('on-bottom')
}
}, 200)
this.position = scrollTop
// 滚动事件,返回当前滚动位置
this.$emit('on-scroll', scrollPosition)
},
// 返回顶部
handlerBackTop() {
const dom = this.$refs.listWrapRef
dom.scrollTop = 0
},
// 触摸开始
handlerStart(e) {
this.startInit = parseInt(e.touches[0].clientY)
},
// 滑动中,下拉
handlerMove(e) {
if (this.position === 0 && !this.refreshLoading) {
const Y = parseInt(e.touches[0].clientY)
const range = Y - this.startInit
this.refresh.height = range
}
},
// 滑动结束
handlerEnd() {
if (this.refresh.height >= 30) {
this.refresh.height = 40
this.$emit('on-refresh')
this.$emit('update:refreshLoading', true)
} else {
this.refresh.height = 0
}
this.startInit = 0
}
}
}
</script> <style lang="scss">
.list-warp-template {
display: block;
height: 100vh;
overflow-y: auto; .top-refresh {
background-color: #ccc;
height: 0;
width: 100%;
transition: height 0.1s linear;
overflow: hidden;
color: #fff;
display: flex;
align-items: center;
justify-content: center;
} .main-list {
width: 100%;
} .bottom-loading {
height: 40px;
display: flex;
align-items: center;
justify-content: center;
color: #999;
width: 100%;
background-color: #f0f0f0;
}
}
</style>
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