uniapp移动端实现下拉刷新
时间: 2023-09-07 22:17:18 浏览: 113
移动端下拉刷新
Uniapp提供了mui-pullrefresh组件来实现下拉刷新。具体实现步骤如下:
1. 引入mui-pullrefresh组件
在需要实现下拉刷新的页面中,通过以下方式引入mui-pullrefresh组件:
```html
<template>
<view>
<mui-pullrefresh :pullDownRefresh="onPullDownRefresh">
<!-- 页面内容 -->
</mui-pullrefresh>
</view>
</template>
<script>
import MuiPullRefresh from "@/components/mui-pullrefresh/mui-pullrefresh.vue";
export default {
components: {
MuiPullRefresh
},
methods: {
onPullDownRefresh() {
// 下拉刷新回调函数
}
}
}
</script>
```
2. 定义下拉刷新回调函数
在mui-pullrefresh组件中定义了一个名为pullDownRefresh的prop,通过该prop设置下拉刷新回调函数。当用户下拉刷新时,组件会自动调用该回调函数。
```html
<mui-pullrefresh :pullDownRefresh="onPullDownRefresh">
<!-- 页面内容 -->
</mui-pullrefresh>
```
```javascript
methods: {
onPullDownRefresh() {
// 下拉刷新回调函数
}
}
```
3. 触发下拉刷新
当用户下拉页面到一定程度时,mui-pullrefresh组件会自动触发下拉刷新,调用onPullDownRefresh回调函数。
当回调函数执行完毕后,需要通过以下方式通知mui-pullrefresh组件刷新完成:
```javascript
// 通知下拉刷新完成
this.$refs.pullrefresh.endPullDownToRefresh();
```
完整代码如下:
```html
<template>
<view>
<mui-pullrefresh :pullDownRefresh="onPullDownRefresh">
<view class="content">
<view v-for="(item, index) in list" :key="index" class="item">{{ item }}</view>
</view>
</mui-pullrefresh>
</view>
</template>
<script>
import MuiPullRefresh from "@/components/mui-pullrefresh/mui-pullrefresh.vue";
export default {
components: {
MuiPullRefresh
},
data() {
return {
list: ["1", "2", "3", "4", "5"]
}
},
methods: {
onPullDownRefresh() {
// 模拟数据请求
setTimeout(() => {
this.list.unshift(new Date().getFullYear().toString());
// 通知下拉刷新完成
this.$refs.pullrefresh.endPullDownToRefresh();
}, 1000);
}
}
}
</script>
<style>
.content {
padding: 20rpx;
}
.item {
height: 50rpx;
line-height: 50rpx;
background-color: #fff;
border: 1rpx solid #ddd;
text-align: center;
font-size: 28rpx;
}
</style>
```
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