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H-UI implements image cropping and uploading (code example)

青灯夜游forward: 2018-10-08 13:36:083961browse

How does H-UI implement image cropping and uploading? This chapter will show you how to use H-UI to crop and upload images. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

No more nonsense, let’s go directly to the code:

HTML code:

<!DOCTYPE html>
<html>

	<head>
		<meta charset="utf-8">
		<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
		<title>HUI 图片剪裁</title>
		<link rel="stylesheet" type="text/css" href="css/hui.css" />
	</head>

	<body>
		<header class="hui-header">
			<div id="hui-back"></div>
			<h1>HUI </h1>
		</header>
		<div class="hui-wrap">
			<div id="hui-img-cuter-select">
				<div id="hui-img-cuter-t1">+</div>
				<div id="hui-img-cuter-t2">请选择图片</div>
			</div>
		</div>
		<div id="hui-footer">
			<button type="button" class="hui-button hui-fl" style="margin:2px 0px 0px 8px;" id="selectImgBtn">选择照片</button>
			<button type="button" class="hui-button hui-primary hui-fr" style="margin:2px 8px 0px 0px;" id="uploadBtn">保存照片</button>
		</div>
		<script type="text/javascript" src="js/hui.js" charset="UTF-8"></script>
		<script type="text/javascript" src="js/hui-image-cuter.js" charset="UTF-8"></script>
		<script type="text/javascript">
			/*
			huiImgCuter 参数 
			1. 宽度和高度的比例 高度 / 宽度 默认 1
			2. 最终保存图片的宽度 默认 200px 高度根据宽高比自动调整
			*/
			var cuter = new huiImgCuter();
			//绑定底部的选择按钮
			cuter.bindSelect("#selectImgBtn");
			//保存照片
			hui(&#39;#uploadBtn&#39;).click(function() {
				//获取图片数据
				var imgData = cuter.getImgData();
				if(!imgData) {
					hui.toast(&#39;请选择图片&#39;);
					return;
				}
				hui.loading(&#39;上传图片...&#39;);
				/*
				//上传到服务端演示代码
				hui.post(
				    &#39;http://192.168.31.188/uper.php&#39;,
				    {img:imgData},
				    function(data){
				        hui.closeLoading();
				        hui.toast(&#39;上传成功!&#39;);
				    }
				);
				*/
				setTimeout(function() {
					hui.toast(&#39;上传成功，演示的！&#39;);
					hui.closeLoading();
				}, 2000);
			});
		</script>
	</body>

</html>

Server-side code (uper.php)

<?php 
if(!empty($_POST)){
    if(isset($_POST[&#39;pd&#39;])){
      $_POST[&#39;pd&#39;] = str_replace(&#39;data:image/png;base64,&#39;, &#39;&#39;, $_POST[&#39;pd&#39;]);
    $img = uniqid().&#39;.png&#39;;
    file_put_contents($img, base64_decode($_POST[&#39;pd&#39;]));
    exit($img);
   }
}
?>

Rendering:

H-UI implements image cropping and uploading (code example)

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