The index.html file containing JavaScript that makes use of the
BarcodeScanner API functionality is listed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | <!DOCTYPE html><html manifest="manifest.appcache"> <head> <title>Barcode Scanner API usage example</title> <script type="text/javascript"> function printText(str) { var d = document.getElementById('text-box'); d.appendChild(document.createTextNode(str)); d.appendChild(document.createElement('br')); d.scrollTop = d.scrollHeight; } function scanBarcode() { var barcodeScanner = window.launchbox.BarcodeScanner; barcodeScanner.scan({ // One of the scan mode constants. 'scanMode': window.launchbox.BarcodeScanner.SCAN_MODE_QR_CODE, // Specifies the character encoding to use when decoding // barcode data. Not supported by iOS. 'characterSet': window.launchbox.BarcodeScanner.ENCODING_UTF_8, 'cropArea': { width: 550, height: 550 } }, { 'onSuccess': function (result) { printText("Barcode scanner: success!"); printText("Barcode data: " + result.data); printText("Barcode format: " + result.format); }, 'onCancel': function () { printText("Barcode scanner: cancel!"); }, 'onFailure': function (error) { printText("Barcode scanner: error! " + error.description); } }); } </script> </head> <body> <header> <h3><span>Barcode Scanner API usage example</span> </h3> </header> <input type="button" onclick="scanBarcode();" value="Scan Barcode"/> <div id="text-box"></div> </body></html> |
The contents of the cache manifest file called manifest.appcache for
this application are listed below:
1 2 3 4 5 6 7 | CACHE MANIFESTCACHE:index.htmlNETWORK:* |
The webapp-descriptor.xml file for this application is defined in the
following way:
1 2 3 4 5 6 7 | <?xml version="1.0" encoding="UTF-8"?><webapp-descriptor xmlns="http://www.pega.com/application-hosting/web-app-descriptor/2.0"> <id>com.pega.sample.Barcode</id> <version>1.0.0</version> <name>Barcode Scanner API usage example</name></webapp-descriptor> |