# 6.3 上拉加载（Loadmore）
基于 Weex 原生 <loading> 的上拉加载示例。滚动到底部时触发 loading 事件，调用方负责请求下一页数据并控制加载状态。
# 实例
# 基础用法
<template>
<div class="dof-demo">
<dof-minibar title="上拉加载" :left-button="leftButton"></dof-minibar>
<scroller class="scroller">
<div class="cell" v-for="num in lists" :key="num">
<div class="panel">
<text class="text">{{ num }}</text>
</div>
</div>
<loading class="loading" @loading="onLoading" :display="loading ? 'show' : 'hide'" v-if="hasNextPage">
<midea-apng-view :loop="true" :auto="true" :src="loadingIcon" class="indicator"></midea-apng-view>
</loading>
<text class="tips" v-if="!hasNextPage">- 没有更多内容了 -</text>
</scroller>
</div>
</template>
<script>
import { DofMinibar } from 'dolphin-intl-ui'
export default {
components: { DofMinibar },
data: () => ({
loading: false,
maxPage: 3,
currentPage: 1,
pageSize: 5,
lists: [0, 1, 2, 3, 4],
loadingIcon: 'http://dolphin-weex-dev.msmartlife.cn/cdn/images/common/loading_gray.png',
hasNextPage: true,
}),
methods: {
onLoading() {
this.loading = true
setTimeout(() => {
this.loadNextPage()
this.loading = false
}, 2000)
},
loadNextPage() {
if (this.currentPage >= this.maxPage) {
this.hasNextPage = false
return
}
const start = this.currentPage * this.pageSize
for (let index = start; index < start + this.pageSize; index += 1) {
this.lists.push(index)
}
this.currentPage += 1
},
},
}
</script>
<style scoped>
.dof-demo {
background-color: #f9f9f9;
}
.loading {
width: 750px;
align-items: center;
padding-bottom: 40px;
}
.indicator {
margin-top: 16px;
height: 40px;
width: 40px;
}
.panel {
width: 686px;
height: 344px;
margin: 35px 32px;
flex-direction: column;
justify-content: center;
border-radius: 32px;
background-color: #ffffff;
}
.text {
font-size: 50px;
text-align: center;
color: #41b883;
}
.tips {
color: #8a8a8f;
font-size: 24px;
margin-top: 80px;
padding-bottom: 80px;
text-align: center;
}
</style>
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# Events
| 事件名 | 说明 | 回调参数 |
|---|---|---|
loading | 滚动到底部且加载器可见时触发 | 原生事件对象 |