How to use the Layui framework to develop a travel navigation application that supports real-time traffic query-JS Tutorial-php.cn

How to use the Layui framework to develop a travel navigation application that supports real-time traffic query

王林

Release： 2023-10-26 10:36:21

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How to use the Layui framework to develop a travel navigation application that supports real-time traffic query

How to use the Layui framework to develop a travel navigation application that supports real-time traffic query, you need specific code examples

As urban traffic becomes increasingly congested, people are paying more and more attention to it Real-time traffic information so you can choose faster travel routes. In order to meet the needs of users, we can use the Layui framework to develop a travel navigation application that supports real-time traffic query. This article will introduce how to use the Layui framework to build such an application and provide detailed code examples.

1. Preparation

Download the Layui framework. You can download the latest stable version of Layui framework from the official website (https://www.layui.com/).
Prepare some basic knowledge of HTML, CSS and JavaScript.
Introduce CSS and JavaScript files related to the Layui framework into the HTML page.

2. Develop the navigation application interface
We first need to develop the interface of the travel navigation application. This interface includes an input box for the user to enter the starting point and destination, a button for triggering the query operation, and an area for displaying traffic condition information.

The following is a simple HTML code example:

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>出行导航</title>
    <link rel="stylesheet" href="layui/css/layui.css">
    <script src="layui/layui.js"></script>
  </head>
  <body>
    <div class="layui-container">
      <div class="layui-row">
        <div class="layui-col-md4">
          <input id="start" type="text" placeholder="请输入出发地">
        </div>
        <div class="layui-col-md4">
          <input id="end" type="text" placeholder="请输入目的地">
        </div>
        <div class="layui-col-md4">
          <button class="layui-btn layui-btn-primary" onclick="search()">查询</button>
        </div>
      </div>
      <div id="trafficInfo" class="layui-row">
      </div>
    </div>

    <script>
      layui.use(['layer'], function() {
        var layer = layui.layer;

        function search() {
          var start = document.getElementById('start').value;
          var end = document.getElementById('end').value;

          // 这里可以调用第三方的交通路况数据接口，获取即时交通路况信息

          // 假设获取到的交通路况信息是一个JSON对象
          var trafficInfo = {
            congestion: '畅通',
            duration: '10分钟',
            distance: '5公里'
          };

          // 在页面中展示交通路况信息
          var infoHtml = '<div class="layui-col-md12">交通路况：' + trafficInfo.congestion + '</div>';
          infoHtml += '<div class="layui-col-md12">预计耗时：' + trafficInfo.duration + '</div>';
          infoHtml += '<div class="layui-col-md12">预计距离：' + trafficInfo.distance + '</div>';

          document.getElementById('trafficInfo').innerHTML = infoHtml;
        }

      });
    </script>
  </body>
</html>

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3. Analysis code example
In the above code example, a simple travel navigation application interface is built through the Layui framework. The input box is used for the user to enter the departure place and destination, the button is used to trigger the query operation, and the traffic condition information will be displayed on the page.

In the JavaScript part, we introduced the layer module of the Layui framework to pop up the message box. The query function is triggered by the click event of the search button. In the query function, we obtain the origin and destination input by the user. In practical applications, we can obtain real-time traffic information by calling a third-party traffic data interface. For the convenience of demonstration, we assume here that the traffic information obtained is a JSON object. The traffic information is then spliced into an HTML string and displayed on the page.

4. Running effect
You can save the above code as an HTML file, use a browser to open this file, and you can see the interface of the travel navigation application. After the user enters the departure place and destination, click the query button, and real-time traffic information will be displayed on the page.

So far, we have used the Layui framework to develop a travel navigation application that supports real-time traffic query. Through this example, you can learn how to use the Layui framework to build the interface and how to use JavaScript to implement interactive logic. In actual applications, you can expand it according to your needs, such as optimizing the interface style, adding map display, etc. Hope this article helps you!

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