前序:在使用vue做一个h5项目的时候，需要上拉分页加载，实践中总结一下：
首先要安装mint-ui
npm i mint-ui -S
然后引入，一般在main.js里面
import Vue from 'vue'
import MintUI from 'mint-ui'
import 'mint-ui/lib/style.css'
import App from './App.vue'
下面是实现上拉加载的代码
<template>
<div class="page-loadmore">
<h1 class="page-title">Pull up</h1>
<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" :style="{ transform: 'scale3d(' + moveTranslate + ',' + moveTranslate + ',1)' }">
translateScale : {{ moveTranslate }}
</div> <div class="page-loadmore-wrapper" ref="wrapper" :style="{ height: wrapperHeight + 'px' }">
<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>
<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> <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>