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androidndefhce

Android convert byte array back to NdefMessage

I am on a project which use the nfc to transfer data. Device A as HCE and device B as reader. In device A, I convert NdefMessage into byte array then send to device B. So my problem now is in device B, how I convert the received byte array data back to NdefMessage?

Solution

  • According to https://developer.android.com/reference/android/nfc/NdefMessage.html

    You can

    Use NdefMessage(byte[]) to construct an NDEF Message from binary data,

    This converts a byte array to NdefMessage

    Or

    https://www.dummies.com/consumer-electronics/nfc-data-exchange-format-ndef/

    Details the Ndef message and record format, so you could convert it yourself