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