Hbuilder-二维码或条形码扫描

时间 2019-12-05

标签 hbuilder 二维条形码扫描繁體版

原文原文链接

使用cordova能够实现扫描二维码或者条形码的功能，可是环境配置比较复杂，须要额外安装插件。javascript

采用html5+一样也能够实现二维码扫描功能，配合Hbuilder打包（必须），方便快捷，而且还能够修改扫描框的样式，更强的灵活度。实现方法以下：css

新建2个html页面，一个做为页面的展现，一个用做扫描二维码界面html

做为页面展现的index.html页面html5

<!DOCTYPE HTML>
<html>

	<head>
		<meta charset="utf-8" />
		<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
		<meta name="HandheldFriendly" content="true" />
		<meta name="MobileOptimized" content="320" />
		<title>Hello H5+</title>
		<script type="text/javascript" src="js/common.js"></script>
		<script type="text/javascript">
			function scaned(t, r, f) {
				var inputContent = document.getElementById("input");
				inputContent.value = r;
			}
		</script>

		<style type="text/css" media="screen">
			.hdata {
				color: #e1673e;
				font-size: 14px;
				overflow: hidden;
				text-overflow: ellipsis;
				white-space: nowrap;
			}
		</style>
	</head>

	<body>

		<div id="dcontent" class="dcontent">
			<div class="button" onclick="clicked('test1.html',true,true)">扫一扫</div>
			<input type="text" id="input" />
		</div>
	</body>


</html>

common.js是用Hbuilder新建移动app hello html5+项目时生成的java

扫描二维码页面test1.htmlweb

<!DOCTYPE html>
<html>

	<head>
		<meta charset="utf-8" />
		<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
		<meta name="HandheldFriendly" content="true" />
		<meta name="MobileOptimized" content="320" />
		<title>Hello H5+</title>
		<script type="text/javascript" src="js/common.js"></script>
		<script type="text/javascript">
			var ws = null,
				wo = null;
			var scan = null,
				domready = false;
			// H5 plus事件处理
			function plusReady() {
				if(ws || !window.plus || !domready) {
					return;
				}
				// 获取窗口对象
				ws = plus.webview.currentWebview();
				wo = ws.opener();
				// 开始扫描
				ws.addEventListener('show', function() {
					var styles = {
						frameColor: "#65e102",
						scanbarColor: "#b7e871",
						background: "#000"
					}; //边框属性
					var filter; //扫码格式 空为全类型，不能省略
					scan = new plus.barcode.Barcode('bcid', filter, styles);
					scan.onmarked = onmarked;
					scan.start({
						conserve: true,
						filename: '_doc/barcode/'
					});
				}, false);
				// 显示页面并关闭等待框
				ws.show('pop-in');
				wo.evalJS('closeWaiting()');
			}
			if(window.plus) {
				plusReady();
			} else {
				document.addEventListener('plusready', plusReady, false);
			}
			// 监听DOMContentLoaded事件
			document.addEventListener('DOMContentLoaded', function() {
				domready = true;
				plusReady();
			}, false);
			// 二维码扫描成功
			function onmarked(type, result, file) {
				switch(type) {
					case plus.barcode.QR:
						type = 'QR';
						break;
					case plus.barcode.EAN13:
						type = 'EAN13';
						break;
					case plus.barcode.EAN8:
						type = 'EAN8';
						break;
					default:
						type = '其它' + type;
						break;
				}
				result = result.replace(/\n/g, '');
				wo.evalJS("scaned('" + type + "','" + result + "','" + file + "');");
				back();
			}
			// 从相册中选择二维码图片 
			function scanPicture() {
				plus.gallery.pick(function(path) {
					plus.barcode.scan(path, onmarked, function(error) {
						plus.nativeUI.alert('没法识别此图片');
					});
				}, function(err) {
					console.log('Failed: ' + err.message);
				});
			}
		</script>
		
		<style type="text/css">
			#bcid {
				width: 100%;
				position: absolute;
				top: 0px;
				bottom: 44px;
				text-align: center;
			}
			
			.tip {
				color: #FFFFFF;
				font-weight: bold;
				text-shadow: 0px -1px #103E5C;
			}
			
			footer {
				width: 100%;
				height: 44px;
				position: absolute;
				bottom: 0px;
				line-height: 44px;
				text-align: center;
				color: #FFF;
			}
			
			.fbt {
				width: 50%;
				height: 100%;
				background-color: #FFCC33;
				float: left;
			}
			
			.fbt:active {
				-webkit-box-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.5);
				box-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.5);
			}
		</style>
	</head>

	<body style="background-color: #000000;">
		<div id="bcid">
			<div style="height:40%"></div>
			<p class="tip">...载入中...</p>
		</div>
		<footer>
			<div class="fbt" onclick="back()">取　 消</div>
			<div class="fbt" onclick="scanPicture()">从相册选择二维码</div>
		</footer>
	</body>

</html>

设置扫描框特定样式主要用到的代码，默认是红色的app

var styles = {
                       frameColor: "#65e102",
                       scanbarColor: "#b7e871",
                       background: "#000"
                   }; //边框属性
var filter; //扫码格式空为全类型，不能省略
scan = new plus.barcode.Barcode('bcid', filter, styles);dom