这篇文章主要讲解了“怎么用vue代码实现下拉刷新,上拉更多功能”，文中的讲解内容简单清晰，易于学习与理解，下面请大家跟着小编的思路慢慢深入，一起来研究和学习“怎么用vue代码实现下拉刷新,上拉更多功能”吧！
具体代码如下：
<template>
<div class="page-loadmore">
<h2 class="page-title">Pull up</h2>
<p class="page-loadmore-desc">在列表底部, 按住 - 上拉 - 释放可以获取更多数据</p>
<p class="page-loadmore-desc">translate : {{ translate }}</p>
<div class="loading-background" :>
translateScale : {{ moveTranslate }}
</div>
<div class="page-loadmore-wrapper" ref="wrapper" :>
<mt-loadmore :top-method="loadTop" @translate-change="translateChange" @top-status-change="handleTopChange" :bottom-method="loadBottom" @bottom-status-change="handleBottomChange" :bottom-all-loaded="allLoaded" ref="loadmore">
<ul class="page-loadmore-list">
<li v-for="item in list" class="page-loadmore-listitem">{{ item }}</li>
</ul>
<div slot="top" class="mint-loadmore-top">
<span v-show="topStatus !== 'loading'" :class="{ 'is-rotate': topStatus === 'drop' }">↓</span>
<span v-show="topStatus === 'loading'">
<mt-spinner type="snake"></mt-spinner>
</span>
</div>
<div slot="bottom" class="mint-loadmore-bottom">
<span v-show="bottomStatus !== 'loading'" :class="{ 'is-rotate': bottomStatus === 'drop' }">↑</span>
<span v-show="bottomStatus === 'loading'">
<mt-spinner type="snake"></mt-spinner>
</span>
</div>
</mt-loadmore>
</div>
</div>
</template>
<style>
.loading-background, .mint-loadmore-top span {
-webkit-transition: .2s linear;
transition: .2s linear
}
.mint-loadmore-top span {
display: inline-block;
vertical-align: middle
}
.mint-loadmore-top span.is-rotate {
-webkit-transform: rotate(180deg);
transform: rotate(180deg)
}
.page-loadmore .mint-spinner {
display: inline-block;
vertical-align: middle
}
.page-loadmore-desc {
text-align: center;
color: #666;
padding-bottom: 5px
}
.page-loadmore-desc:last-of-type,
.page-loadmore-listitem {
border-bottom: 1px solid #eee
}
.page-loadmore-listitem {
height: 50px;
line-height: 50px;
text-align: center
}
.page-loadmore-listitem:first-child {
border-top: 1px solid #eee
}
.page-loadmore-wrapper {
overflow: scroll
}
.mint-loadmore-bottom span {
display: inline-block;
-webkit-transition: .2s linear;
transition: .2s linear;
vertical-align: middle
}
.mint-loadmore-bottom span.is-rotate {
-webkit-transform: rotate(180deg);
transform: rotate(180deg)
}
</style>
<script type="text/babel">
export default {
data() {
return {
list: [],
allLoaded: false,
bottomStatus: '',
wrapperHeight: 0,
topStatus: '',
//wrapperHeight: 0,
translate: 0,
moveTranslate: 0
};
},
methods: {
handleBottomChange(status) {
this.bottomStatus = status;
},
loadBottom() {
setTimeout(() => {
let lastValue = this.list[this.list.length - 1];
if (lastValue < 40) {
for (let i = 1; i <= 10; i++) {
this.list.push(lastValue + i);
}
} else {
this.allLoaded = true;
}
this.$refs.loadmore.onBottomLoaded();
}, 1500);
},
handleTopChange(status) {
this.moveTranslate = 1;
this.topStatus = status;
},
translateChange(translate) {
const translateNum = +translate;
this.translate = translateNum.toFixed(2);
this.moveTranslate = (1 + translateNum / 70).toFixed(2);
},
loadTop() {
setTimeout(() => {
let firstValue = this.list[0];
for (let i = 1; i <= 10; i++) {
this.list.unshift(firstValue - i);
}
this.$refs.loadmore.onTopLoaded();
}, 1500);
},
},
created() {
for (let i = 1; i <= 20; i++) {
this.list.push(i);
}
},
mounted() {
this.wrapperHeight = document.documentElement.clientHeight - this.$refs.wrapper.getBoundingClientRect().top;
}
};
</script>Vue的优点
Vue具体轻量级框架、简单易学、双向数据绑定、组件化、数据和结构的分离、虚拟DOM、运行速度快等优势，Vue中页面使用的是局部刷新，不用每次跳转页面都要请求所有数据和dom，可以大大提升访问速度和用户体验。