listen
Listens to the barcode data stream from a specific Opticon BLE scanner.
Use this method to receive barcode data from the scanner specified by the deviceId. You will get data as a flow of BarcodeData whenever a barcode is scanned.
Return
A flow of BarcodeData received from the scanner.
Parameters
device
The identifier of the target scanner.
Callback-based version of listenToBarcodeData for Java interoperability.
Parameters
device
The identifier of the target scanner.
callback
Callback to receive BarcodeData.