QRCodeScannerSDKConstants for Android

The QRCodeScannerSDKConstants class contains the constants. The following table lists the available constants and parameters.

Properties

QRCodeScannerSDKConstants Properties for Android

Property Name	Data Type	Description
Android Extra Parameters
EXTRA_VIBRATE	Boolean	Indicates whether the device must vibrate when a QR code is scanned. Key value: extra_vibrate Default value: true
EXTRA_CODE_TYPE	int	Indicates which type of code can be parsed. Key value: extra_code_type Possible values are: QRCodeScannerSDKConstants.QR_CODE QRCodeScannerSDKConstants.CRONTO_CODE QRCodeScannerSDKConstants.QR_CODE + QRCodeScannerSDKConstants.CRONTO_CODE Default value: QRCodeScannerSDKConstants.QR_CODE + QRCodeScannerSDKConstants.CRONTO_CODE
QR_CODE	int	Indicates that the Image Scanner SDK must parse the image to search QR codes. Key value: 0x01
EXTRA_SCANNER_OVERLAY	Boolean	Indicates that a scanner overlay will be displayed in scan view. Key value: extra_scanner_overlay Default value: false
EXTRA_SCANNER_OVERLAY_COLOR	int	Indicates the color that will be applied in the scanner overlay. Key value: extra_scanner_overlay_color Default value: 0x99000000
CRONTO_CODE	int	Indicates that the Image Scanner SDK must parse the image to search Cronto images. Key value: 0x02
Android Return Parameters
OUTPUT_RESULT	String	Result of the scan. Key value: output_result
OUTPUT_EXCEPTION	Exception	Caught exception. Key value: output_exception
OUTPUT_CODE_TYPE	int	Code type result. Key value: output_code_type Possible values are: QR_CODE CRONTO_CODE
RESULT_ERROR	int	Indicates whether an exception has been thrown during the scanning process. Key value: RESULT_FIRST_USER + 1

Example

1. public void OnScanClicked(View v)
2. {
3.   ..
4.   // We want a vibration feedback after scanning
5.   // Note that the vibration feedback is activated by default
6.   intent.putExtra(QRCodeScannerSDKConstants.EXTRA_VIBRATE, true);
7.  
8.   // Indicate which sort of image we want to scan
9.   intent.putExtra(QRCodeScannerSDKConstants.EXTRA_CODE_TYPE, QRCodeScannerSDKConstants.QR_CODE +  QRCodeScannerSDKConstants.CRONTO_CODE);
10.  
11.   // Launch Image Scanner activity
12.   startActivityForResult(intent, 1);
13. }
14. @Override
15. protected void onActivityResult(int requestCode, int resultCode, Intent data)
16. {
17.   switch (resultCode)
18.   {
19.     case RESULT_OK:
20.       ..
21.       String result = data.getStringExtra (QRCodeScannerSDKConstants.OUTPUT_RESULT);
22.       int codeType = data.getIntExtra (QRCodeScannerSDKConstants.OUTPUT_CODE_TYPE, 0);
23.  
24.       // Convert the result
25.       if (codeType == QRCodeScannerSDKConstants.CRONTO_CODE)
26.       {
27.         // we have scan a cronto code => convert the hexa string to string
28.         byte[] tmp = hexaToBytes(result);
29.         ..
30.       }
31.       else if (codeType == QRCodeScannerSDKConstants.QR_CODE)
32.       {
33.         // we have scanned a QR code => display directly the result
34.         resultTextView.setText(result);
35.         ..
36.       }
37.   }
38. }

Known Issue

Known issue with Samsung Galaxy A23

Due to a known issue with the camera on Samsung Galaxy A23, Cronto codes are not decoded properly with the default resolution. The solution to this issue is to increase the resolution using the following code snippet:

var imageAnalysisBuilder = ImageAnalysis.Builder().setTargetRotation(rotation)
// Set Resolution property only for Samsung Galaxy A23 model
if(Build.MANUFACTURER.equals("Samsung", true) && Build.MODEL.contains("A23")) {
          imageAnalysisBuilder.setTargetResolution(Size(1080, 1920))
}
imageAnalysisBuilder.build().setAnalyzer(cameraExecutor, QrCodeAnalyzer())