How to use Layui to implement drag-and-drop image cropping function-JS Tutorial-php.cn

How to use Layui to implement drag-and-drop image cropping function

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Release： 2023-10-25 10:07:59

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How to use Layui to implement drag-and-drop image cropping function

With the rapid development of the mobile Internet, the image cropping function is widely used in various products. To implement the drag-and-drop image cropping function, we can use Layui, an excellent front-end development framework, to simplify the development process. This article will introduce how to use Layui to implement draggable image cropping function, and give specific code examples.

Introduce the Layui framework and related libraries

Before implementing the drag-and-drop image cropping function, we need to introduce the Layui framework and related libraries. First, add the following code in the

tag of the HTML file:

<link rel="stylesheet" href="https://cdn.staticfile.org/layui/2.5.6/css/layui.css">
<script src="https://cdn.staticfile.org/layui/2.5.6/layui.js"></script>

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Create HTML structure

Next, we need to create the HTML structure to display the image and Crop box. Add the following code in the tag:

<div class="demo" style="margin:20px;">
  <div class="layui-upload">
    <button type="button" class="layui-btn" id="upload">上传图片</button>
    <button type="button" class="layui-btn" id="cut">裁剪图片</button>
  </div>
  <div class="layui-upload-img" id="image-container"></div>
  <div class="layui-row layui-col-space10" id="crop-container"></div>
</div>

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Writing JavaScript code

In the HTML structure, we added buttons for uploading images and cropping images, and A container for displaying images (id is image-container) and a container for displaying crop boxes (id is crop-container). Next, we need to write JavaScript code to implement the upload, display and cropping functions of images. Add the following code in the