基於MUI框架的使用HTML5+實現的二維碼掃描功能
阿新 • • 發佈：2019-02-15
<!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;">物品二維碼掃描</h1> <span class="mui-icon mui-icon-spinner-cycle mui-spin mui-pull-right" id="turnTheLight"></span> </header> <div id="bcid"> <!--盛放掃描控制元件的div--> </div> <div class="mui-bar mui-bar-footer" style="padding: 0px;"> <div class="fbt" onclick="scanPicture();">從相簿選擇二維碼</div> <div class="fbt mui-action-back">取 消</div> </div> <script type="text/javascript"> scan = null;//掃描物件 mui.plusReady(function () { mui.init(); startRecognize(); }); function startRecognize(){ try{ var filter; //自定義的掃描控制元件樣式 var styles = {frameColor: "#29E52C",scanbarColor: "#29E52C",background: ""} //掃描控制元件構造 scan = new plus.barcode.Barcode('bcid',filter,styles); scan.onmarked = onmarked; scan.onerror = onerror; scan.start(); //開啟關閉閃光燈處理 var flag = false; document.getElementById("turnTheLight").addEventListener('tap',function(){ if(flag == false){ scan.setFlash(true); flag = true; }else{ scan.setFlash(false); flag = false; } }); }catch(e){ alert("出現錯誤啦:\n"+e); } }; function onerror(e){ alert(e); }; function onmarked( type, result ) { var text = ''; switch(type){ case plus.barcode.QR: text = 'QR: '; break; case plus.barcode.EAN13: text = 'EAN13: '; break; case plus.barcode.EAN8: text = 'EAN8: '; break; } alert( text + " : "+ result ); }; // 從相簿中選擇二維碼圖片 function scanPicture() { plus.gallery.pick(function(path){ plus.barcode.scan(path,onmarked,function(error){ plus.nativeUI.alert( "無法識別此圖片" ); }); },function(err){ plus.nativeUI.alert("Failed: "+err.message); }); } </script> </body> </html>