Barcode的一个实现案例
一、简介
Barcode模块管理条码扫描，提供常见的条码（二维码及一维码）的扫描识别功能，可调用设备的摄像头对条码图片扫描进行数据输入。通过plus.barcode可获取条码码管理对象。
二、实现的效果
三、实现 代码
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<link href="css/mui.min.css" rel="stylesheet" />
<script src="js/mui.min.js"></script>
<style type="text/css">
#bcid{
width: 100%;
height: 100%;
position: absolute;
background: #000000;
}
html, body ,div{
height:100%;
width: 100%;
}
.fbt{
color: #0E76E1;
width: 50%;
background-color: #ffffff;
float: left;
line-height: 44px;
text-align: center;
}
</style>
</head>
<body>
<header class="mui-bar mui-bar-nav" style="background-color: #ffffff;">
<a class="mui-action-back mui-icon mui-icon-left-nav mui-pull-left"></a>
<h1 class="mui-title" style="color: #0E76E1;">物品二维码扫描</h1>
<span class="mui-icon mui-icon-spinner-cycle mui-spin mui-pull-right" id="turnTheLight"></span>
</header>
<div id="bcid">
<!--盛放扫描控件的div-->
</div>
<div class="mui-bar mui-bar-footer" style="padding: 0px;">
<div class="fbt" onclick="scanPicture();">从相册选择二维码</div>
<div class="fbt mui-action-back">取 消</div>
</div>
<script type="text/javascript">
scan = null;//扫描对象
mui.plusReady(function () {
mui.init();
startRecognize();
});
function startRecognize(){
try{
var filter;
//自定义的扫描控件样式
var styles = {frameColor: "#29E52C",scanbarColor: "#29E52C",background: ""}
//扫描控件构造
scan = new plus.barcode.Barcode('bcid',filter,styles);
scan.onmarked = onmarked;
scan.onerror = onerror;
scan.start();
//打开关闭闪光灯处理
var flag = false;
document.getElementById("turnTheLight").addEventListener('tap',function(){
if(flag == false){
scan.setFlash(true);
