current position:Home>Article list data display: pull-down loading more, pull-up refreshing, rolling loading, request failure friendly prompt (simulating the effect of random failure)
Article list data display: pull-down loading more, pull-up refreshing, rolling loading, request failure friendly prompt (simulating the effect of random failure)
2021-08-26 00:38:53 【User 5292355094835】
Be careful : Because scrolling loads , So do it push go in , And merge the arrays this.list.push(...results)
Request interfaces are gathered here :juejin.cn/post/699917…
Request method and data processing
methods: {
async onLoad() {
// Update data asynchronously
// 1. Request for data And pull up to load more
try {
const { data } = await getArticleList({
channel_id: this.channel.id,
timestamp: this.timestamp || Date.now(), // Page number of the requested article data
with_top: 1 // Whether to include topping , Enter the page
})
// Simulate requesting wrong data
// if (Math.random() > 0.5) {
// JSON.parse('DSFASFASDF')
// }
console.log(data);
// 2. Add data to list Array ,
const { results } = data.data
this.list.push(...results) // Because scrolling loads , So do it push go in , And merge the arrays
// 3. Set the end state of this load
this.loading = false
// 4. Judge whether the data loading is over
if (results.length) {
// Update the time to get the next page of data
this.timestamp = data.data.pre_timestamp
} else {
this.finished = true
}
} catch (error) {
console.log(' request was aborted ', error);
this.loading = false // close loading effect
this.error = true // Turn on the error
}
},
// Drop down refresh event
async onRefresh() {
try {
// 1. Request for data
const { data } = await getArticleList({
channel_id: this.channel.id,
timestamp: Date.now(),
with_top: 1
})
// Simulate requesting wrong data
// if (Math.random() > 0.5) {
// JSON.parse('DSFASFASDF')
// }
// 2. Append data to the top
const { results } = data.data
this.list.unshift(...results)
// 3. Turn off the pull-down refresh loading state
this.refreshing = false
// 4. Prompt the number of successful refresh
this.refreshSuccessText = ` Refresh successful , Updated ${results.length} Data `
} catch (error) {
// Refresh failed
this.refreshing = false // Close the load page
this.refreshSuccessText = " Refresh failed "
console.log(error);
}
}
}
}
Copy code
Complete code :article-list.vue
<template>
<div class="article-list">
<van-pull-refresh v-model="refreshing" @refresh="onRefresh" :success-text="refreshSuccessText" :success-duration="1500">
<van-list v-model="loading" :error.sync="error" error-text=" request was aborted , Click reload " :finished="finished" finished-text=" There is no more " @load="onLoad">
<article-item v-for="(article,index) in list" :key="index" :article="article" ></article-item>
</van-list>
</van-pull-refresh>
</div>
</template>
<script>
import { getArticleList } from '@/api/article'
import ArticleItem from '@/components/article-item'
// import request from 'request'
export default {
components: { ArticleItem },
// props Receive parent component The parameters passed in
props: {
channel: { type: Object, required: true }
},
name: 'articleList',
data() {
return {
list: [], // An array that stores list data
loading: false, // Control loading loading state
finished: false, // Request the status of the end of data loading
timestamp: null, // Request to get the timestamp of the next page of data
error: false, // Status of failed data request
refreshing: false, // Drop down refresh status
refreshSuccessText: " Refresh successful "// Pull down refresh failed
// Article list request parameters If you write it here Updates will not be implemented , Don't write here
}
},
created() {
},
methods: {
async onLoad() {
// Update data asynchronously
// 1. Request for data
try {
const { data } = await getArticleList({
channel_id: this.channel.id,
timestamp: this.timestamp || Date.now(), // Page number of the requested article data
with_top: 1 // Whether to include topping , Enter the page
})
// Simulate requesting wrong data
// if (Math.random() > 0.5) {
// JSON.parse('DSFASFASDF')
// }
console.log(data);
// 2. Add data to list Array ,
const { results } = data.data
this.list.push(...results) // Because scrolling loads , So do it push go in , And merge the arrays
// 3. Set the end state of this load
this.loading = false
// 4. Judge whether the data loading is over
if (results.length) {
// Update the time to get the next page of data
this.timestamp = data.data.pre_timestamp
} else {
this.finished = true
}
} catch (error) {
console.log(' request was aborted ', error);
this.loading = false // close loading effect
this.error = true // Turn on the error
}
},
// Drop down refresh event
async onRefresh() {
try {
// 1. Request for data
const { data } = await getArticleList({
channel_id: this.channel.id,
timestamp: Date.now(),
with_top: 1
})
// Simulate requesting wrong data
// if (Math.random() > 0.5) {
// JSON.parse('DSFASFASDF')
// }
// 2. Append data to the top
const { results } = data.data
this.list.unshift(...results)
// 3. Turn off the pull-down refresh loading state
this.refreshing = false
// 4. Prompt the number of successful refresh
this.refreshSuccessText = ` Refresh successful , Updated ${results.length} Data `
} catch (error) {
// Refresh failed
this.refreshing = false // Close the load page
this.refreshSuccessText = " Refresh failed "
console.log(error);
}
}
}
}
</script>
<style lang="less" scoped>
.article-list {
// Set and remember the scroll position of the list Where each article list scrolls They don't influence each other
height: 79vh;
overflow: auto;
}
</style>
Copy code
copyright notice
author[User 5292355094835],Please bring the original link to reprint, thank you.
https://en.qdmana.com/2021/08/20210826003849900s.html
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