search
HomeWeb Front-enduni-appHow to implement click-to-load more functions in uniapp

With the development of the mobile phone industry, mobile applications are becoming more and more popular, and multi-terminal development has become a common method. Based on this, uniapp turned out to be a development framework that can develop iOS, Android, H5 and other platforms at the same time. In uniapp, how to achieve click-to-load more?

1. Use the uni-list component

Uni-list is a list component encapsulated by uniapp, which implements the rendering and scrolling of the list. In uni-list, an additional attribute loadmore is set, which can automatically load the next page after sliding to the bottom.

First, define the uni-list component in the template and set the loadmore attribute to true. The code is as follows:

<template>
  <uni-list>
    <uni-list-item>
      {{item}}
    </uni-list-item>
  </uni-list>
</template>

Among them, loadtext is the text displayed when loading, and getMoreData is a custom method, used to obtain the next page of data.

Next, define the data data and getMoreData method in the script. The code is as follows:

<script>
  export default {
    data() {
      return {
        // 列表数据
        listData: [],
        // 加载时的文本提示
        loadtext: &#39;正在加载...&#39;,
        // 当前页码
        currentPage: 1,
        // 每页展示数量
        pageSize: 10
      }
    },
    methods: {
      getMoreData() {
        // 发送请求获取下一页数据
        uni.request({
          url: &#39;https://example.com/getMoreData&#39;,
          data: {
            page: this.currentPage + 1,
            pageSize: this.pageSize
          },
          success: res => {
            // 将数据添加到列表中
            this.listData = this.listData.concat(res.data.list)
            // 将页码+1
            this.currentPage++
            // 如果没有更多数据了,显示已经到底部
            if (!res.data.hasMoreData) {
              this.loadtext = &#39;没有更多了&#39;
            }
          },
          fail: err => {
            console.log(err)
          }
        })
      }
    }
  }
</script>

The getMoreData method implements the function of sending a request to obtain the next page data, and after obtaining the data, Add it to the list. At the same time, when there is no more data to load, the loadtext is set to "no more".

2. Custom button triggers loading more

In addition to using the loadmore attribute of uni-list, we can also use custom buttons to trigger loading more functions. The specific implementation method is as follows.

First, add a custom button in the template to trigger loading more. The code is as follows:

<template>
  <div>
    <uni-list>
      <uni-list-item>
        {{item}}
      </uni-list-item>
    </uni-list>
    <button>点击加载更多</button>
  </div>
</template>

Among them, the loadmore attribute of uni-list is set to false, which means it is not automatic. Loading more needs to be triggered manually by clicking a button.

Then, define the data data and getMoreData method in the script. The code is as follows:

<script>
  export default {
    data() {
      return {
        // 列表数据
        listData: [],
        // 当前页码
        currentPage: 1,
        // 每页展示数量
        pageSize: 10,
        // 是否有更多数据
        hasMoreData: true
      }
    },
    methods: {
      getMoreData() {
        // 发送请求获取下一页数据
        uni.request({
          url: &#39;https://example.com/getMoreData&#39;,
          data: {
            page: this.currentPage + 1,
            pageSize: this.pageSize
          },
          success: res => {
            // 将数据添加到列表中
            this.listData = this.listData.concat(res.data.list)
            // 将页码+1
            this.currentPage++
            // 如果没有更多数据了,隐藏按钮
            if (!res.data.hasMoreData) {
              this.hasMoreData = false
            }
          },
          fail: err => {
            console.log(err)
          }
        })
      }
    }
  }
</script>

In the getMoreData method, we also send a request to obtain the next page data, and after obtaining the data, Add to list. When there is no more data, set hasMoreData to false so that the button no longer displays.

Finally, we need to set a v-if judgment on the button to determine whether there is more data. The code is as follows:

<button>点击加载更多</button>

In this way, we can click the button to Loading more data manually.

Summary

This article introduces two ways to achieve click-to-load more in uniapp: using the uni-list component and custom button triggering. Either way, it's basically a method of sending a request to get more data and add it to a list. For developers, which implementation method they choose can be chosen based on specific scenarios.

The above is the detailed content of How to implement click-to-load more functions in uniapp. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
How do you debug issues on different platforms (e.g., mobile, web)?How do you debug issues on different platforms (e.g., mobile, web)?Mar 27, 2025 pm 05:07 PM

The article discusses debugging strategies for mobile and web platforms, highlighting tools like Android Studio, Xcode, and Chrome DevTools, and techniques for consistent results across OS and performance optimization.

What debugging tools are available for UniApp development?What debugging tools are available for UniApp development?Mar 27, 2025 pm 05:05 PM

The article discusses debugging tools and best practices for UniApp development, focusing on tools like HBuilderX, WeChat Developer Tools, and Chrome DevTools.

How do you perform end-to-end testing for UniApp applications?How do you perform end-to-end testing for UniApp applications?Mar 27, 2025 pm 05:04 PM

The article discusses end-to-end testing for UniApp applications across multiple platforms. It covers defining test scenarios, choosing tools like Appium and Cypress, setting up environments, writing and running tests, analyzing results, and integrat

What are the different types of testing that you can perform in a UniApp application?What are the different types of testing that you can perform in a UniApp application?Mar 27, 2025 pm 04:59 PM

The article discusses various testing types for UniApp applications, including unit, integration, functional, UI/UX, performance, cross-platform, and security testing. It also covers ensuring cross-platform compatibility and recommends tools like Jes

What are some common performance anti-patterns in UniApp?What are some common performance anti-patterns in UniApp?Mar 27, 2025 pm 04:58 PM

The article discusses common performance anti-patterns in UniApp development, such as excessive global data use and inefficient data binding, and offers strategies to identify and mitigate these issues for better app performance.

How can you use profiling tools to identify performance bottlenecks in UniApp?How can you use profiling tools to identify performance bottlenecks in UniApp?Mar 27, 2025 pm 04:57 PM

The article discusses using profiling tools to identify and resolve performance bottlenecks in UniApp, focusing on setup, data analysis, and optimization.

How can you optimize network requests in UniApp?How can you optimize network requests in UniApp?Mar 27, 2025 pm 04:52 PM

The article discusses strategies for optimizing network requests in UniApp, focusing on reducing latency, implementing caching, and using monitoring tools to enhance application performance.

How can you optimize images for web performance in UniApp?How can you optimize images for web performance in UniApp?Mar 27, 2025 pm 04:50 PM

The article discusses optimizing images in UniApp for better web performance through compression, responsive design, lazy loading, caching, and using WebP format.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment