File	Doc	Category	Size	Date	Package
NfcBarcode.java	API Doc	Android 5.1 API	4522	Thu Mar 12 22:22:10 GMT 2015	android.nfc.tech

NfcBarcode

• java.lang.Object
  • BasicTagTechnology

Fields Summary
public static final int	TYPE_KOVIO Kovio Tags
public static final int	TYPE_UNKNOWN
public static final String	EXTRA_BARCODE_TYPE
private int	mType

Constructors Summary
public NfcBarcode(android.nfc.Tag tag) Internal constructor, to be used by NfcAdapter hide super(tag, TagTechnology.NFC_BARCODE); Bundle extras = tag.getTechExtras(TagTechnology.NFC_BARCODE); if (extras != null) { mType = extras.getInt(EXTRA_BARCODE_TYPE); } else { throw new NullPointerException("NfcBarcode tech extras are null."); }

Methods Summary
public static android.nfc.tech.NfcBarcode	get(android.nfc.Tag tag) Get an instance of {@link NfcBarcode} for the given tag. Returns null if {@link NfcBarcode} was not enumerated in {@link Tag#getTechList}. Does not cause any RF activity and does not block. param tag an NfcBarcode compatible tag return NfcBarcode object if (!tag.hasTech(TagTechnology.NFC_BARCODE)) return null; try { return new NfcBarcode(tag); } catch (RemoteException e) { return null; }
public byte[]	getBarcode() Returns the barcode of an NfcBarcode tag. Tags of {@link #TYPE_KOVIO} return 16 bytes: The first byte is 0x80 ORd with a manufacturer ID, corresponding to ISO/IEC 7816-6. The second byte describes the payload data format. Defined data format types include the following: 0x00: Reserved for manufacturer assignment 0x01: 96-bit URL with "http://www." prefix 0x02: 96-bit URL with "https://www." prefix 0x03: 96-bit URL with "http://" prefix 0x04: 96-bit URL with "https://" prefix 0x05: 96-bit GS1 EPC 0x06-0xFF: reserved The following 12 bytes are payload: In case of a URL payload, the payload is encoded in US-ASCII, following the limitations defined in RFC3987. {@see RFC 3987} In case of GS1 EPC data, see GS1 Electronic Product Code (EPC) Tag Data Standard (TDS) for more details. The last 2 bytes comprise the CRC. Does not cause any RF activity and does not block. return a byte array containing the barcode see Kovio 128-bit NFC barcode datasheet see Kovio 128-bit NFC barcode data format switch (mType) { case TYPE_KOVIO: // For Kovio tags the barcode matches the ID return mTag.getId(); default: return null; }
public int	getType() Returns the NFC Barcode tag type. Currently only one of {@link #TYPE_KOVIO} or {@link #TYPE_UNKNOWN}. Does not cause any RF activity and does not block. return the NFC Barcode tag type return mType;