Read data from NFC tag
android, nfc
Solution
Probably, you have the same problem here and how to read an NFC tag properly here
Snippet taken from 2nd link.
try
{
byte[] payload = record.getPayload();
/*
* payload[0] contains the "Status Byte Encodings" field, per the
* NFC Forum "Text Record Type Definition" section 3.2.1.
*
* bit7 is the Text Encoding Field.
*
* if (Bit_7 == 0): The text is encoded in UTF-8 if (Bit_7 == 1):
* The text is encoded in UTF16
*
* Bit_6 is reserved for future use and must be set to zero.
*
* Bits 5 to 0 are the length of the IANA language code.
*/
//Get the Text Encoding
String textEncoding = ((payload[0] & 0200) == 0) ? "UTF-8" : "UTF-16";
//Get the Language Code
int languageCodeLength = payload[0] & 0077;
String languageCode = new String(payload, 1, languageCodeLength, "US-ASCII");
//Get the Text
String text = new String(payload, languageCodeLength + 1, payload.length - languageCodeLength - 1, textEncoding);
return new TextRecord(text, languageCode);
}
catch(Exception e)
{
throw new RuntimeException("Record Parsing Failure!!");
}
Problem
Possible Duplicate: Strange character on Android NDEF record payload I am trying to read some plain text from NFC tag. and my codes are below; ``` public void processReadIntent(Intent intent){ Parcelable[] rawMsgs = intent.getParcelableArrayExtra( NfcAdapter.EXTRA_NDEF_MESSAGES); NdefMessage msg = (NdefMessage) rawMsgs[0]; // record 0 contains the MIME type, record 1 is the AAR, if present Log.d("msg", msg.getRecords()[0].getPayload().toString()); String PatientId=new String(msg.getRecords()[0].getPayload()); String UserName="nurse"; String Password="nurse"; Toast.makeText(getApplicationContext(), PatientId, Toast.LENGTH_LONG).show(); //tv.setText(new String(msg.getRecords()[0].getPayload())); } ``` BUT, the problem here is when i read data i can see that my desired data has a 'en' at the start. for example: if my actual data in 'john', when i read, i can see it as 'enjohn'. I know 'en' is the language header. But how do I remove it?? i have tried with substring, but after that don't even work... any idea about how to remove this language header???