How to implement instant search and keyword prompts in uniapp

How to implement instant search and keyword prompts in uniapp

Introduction:
In modern society, with the development of the Internet, people are more interested in search functions The demand is growing. In order to improve user experience, many applications provide instant search and keyword prompt functions. This article will introduce in detail how to implement instant search and keyword prompts in uniapp, and provide specific code examples to help developers get started quickly.

1. Implement instant search

1. Create a search box component
   First, create an input box as a search box component on the page. You can use the input box component in the uni-ui library or customize the style. The following is an example of a simple search box component:

<template>
  <view class="search-box">
    <input type="text" class="search-input" placeholder="请输入关键字" @input="search" />
  </view>
</template>

<script>
export default {
  methods: {
    search(e) {
      const keyword = e.detail.value;
      // 根据关键字进行搜索
      // ...继续实现搜索功能代码
    },
  },
}
</script>

<style>
.search-box {
  width: 100%;
  padding: 20rpx;
  background-color: #f5f5f5;
}

.search-input {
  width: 100%;
  height: 60rpx;
  border-radius: 30rpx;
  padding: 0 30rpx;
  border: none;
  background-color: #fff;
}
</style>

2. Implementing the search function
   After entering keywords in the search box, you need to obtain the entered keywords and send a request for search. You can use the uni.request method to send a request to obtain search results and display them on the page. The following is a simple example:

search(e) {
  const keyword = e.detail.value;

  // 发送请求进行搜索
  uni.request({
    url: 'https://api.example.com/search',
    data: {
      keyword: keyword,
    },
    success: (res) => {
      const searchRes = res.data;
      // 处理搜索结果
      // ...继续实现处理搜索结果的代码
    },
    fail: (res) => {
      console.error(res);
    },
  });
},

2. Implement keyword prompts

1. Create keyword prompt components
   In order to implement the function of keyword prompts, you need to A list of popular keywords or search suggestions related to the entered keyword is displayed below the search box. The following is a simple example of a keyword prompt component:

<template>
  <view class="keyword-list">
    <view class="keyword-item" v-for="(keyword, index) in keywordList" :key="index">
      {{ keyword }}
    </view>
  </view>
</template>

<script>
export default {
  props: {
    keywordList: {
      type: Array,
      default: () => [],
    },
  },
}
</script>

<style>
.keyword-list {
  margin-top: 20rpx;
}

.keyword-item {
  padding: 10rpx 20rpx;
  background-color: #eee;
  border-radius: 20rpx;
  display: inline-block;
  margin-right: 10rpx;
  margin-bottom: 10rpx;
}
</style>

2. Implementing the keyword prompt function
   When entering a keyword in the search box, send a request to obtain the keyword based on the entered keyword The result of the prompt is passed to the keyword prompt component for display. The following is a simple example:

search(e) {
  const keyword = e.detail.value;

  // 发送请求获取关键词提示
  uni.request({
    url: 'https://api.example.com/keyword-suggestion',
    data: {
      keyword: keyword,
    },
    success: (res) => {
      const keywordList = res.data;
      this.keywordList = keywordList;
    },
    fail: (res) => {
      console.error(res);
    },
  });
},

3. Summary
This article introduces how to implement the functions of instant search and keyword prompts in uniapp, and provides specific code examples. Developers can adjust and expand the code according to their actual needs to meet the needs of the project. I hope this article will be helpful for developers to implement instant search and keyword prompt functions.

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