IT. Expert System.

All Implemented Interfaces:

TagTechnology, Closeable, AutoCloseable

public final class NfcBarcode
extends Object

• Field Summary

  Fields

  Modifier and Type	Field and Description
  static String	EXTRA_BARCODE_TYPE
  static int	TYPE_KOVIO Kovio Tags
  static int	TYPE_UNKNOWN

  • Fields inherited from interface android.nfc.tech.TagTechnology

    ISO_DEP, MIFARE_CLASSIC, MIFARE_ULTRALIGHT, NDEF, NDEF_FORMATABLE, NFC_A, NFC_B, NFC_BARCODE, NFC_F, NFC_V

• Constructor Summary

  Constructors

  Constructor and Description
  NfcBarcode(Tag tag) Internal constructor, to be used by NfcAdapter

• Method Summary

  Methods

  Modifier and Type	Method and Description
  void	close() Disable I/O operations to the tag from this TagTechnology object, and release resources.
  void	connect() Enable I/O operations to the tag from this TagTechnology object.
  static NfcBarcode	get(Tag tag) Get an instance of NfcBarcode for the given tag.
  byte[]	getBarcode() Returns the barcode of an NfcBarcode tag.
  Tag	getTag() Get the Tag object backing this TagTechnology object.
  int	getType() Returns the NFC Barcode tag type.
  boolean	isConnected() Helper to indicate if I/O operations should be possible.
  void	reconnect() Re-connect to the Tag associated with this connection.

  • Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• Field Detail

  • TYPE_KOVIO

    public static final int TYPE_KOVIO

    Kovio Tags

    See Also:

    Constant Field Values

  • TYPE_UNKNOWN

    public static final int TYPE_UNKNOWN

    See Also:

    Constant Field Values

  • EXTRA_BARCODE_TYPE

    public static final String EXTRA_BARCODE_TYPE

    See Also:

    Constant Field Values

• Constructor Detail

  • NfcBarcode

    public NfcBarcode(Tag tag)
               throws RemoteException

    Internal constructor, to be used by NfcAdapter

    Throws:

    RemoteException

• Method Detail

  • get

    public static NfcBarcode get(Tag tag)

    Get an instance of NfcBarcode for the given tag.

    Returns null if NfcBarcode was not enumerated in Tag.getTechList().

    Does not cause any RF activity and does not block.

    Parameters:

    tag - an NfcBarcode compatible tag

    Returns:

    NfcBarcode object

  • getType

    public int getType()

    Returns the NFC Barcode tag type.

    Currently only one of TYPE_KOVIO or TYPE_UNKNOWN.

    Does not cause any RF activity and does not block.

    Returns:

    the NFC Barcode tag type

  • getBarcode

    public byte[] getBarcode()

    Returns the barcode of an NfcBarcode tag.

    Does not cause any RF activity and does not block.

    Returns:

    a byte array containing the barcode

  • getTag

    public Tag getTag()

    Description copied from interface: TagTechnology
    Get the Tag object backing this TagTechnology object.

    Specified by:

    getTag in interface TagTechnology

    Returns:

    the Tag backing this TagTechnology object.

  • isConnected

    public boolean isConnected()

    Description copied from interface: TagTechnology
    Helper to indicate if I/O operations should be possible.

    Returns true if TagTechnology.connect() has completed, and TagTechnology.close() has not been called, and the Tag is not known to be out of range.

    Does not cause RF activity, and does not block.

    Specified by:

    isConnected in interface TagTechnology

    Returns:

    true if I/O operations should be possible

  • connect

    public void connect()
                 throws IOException

    Description copied from interface: TagTechnology
    Enable I/O operations to the tag from this TagTechnology object.

    May cause RF activity and may block. Must not be called from the main application thread. A blocked call will be canceled with IOException by calling TagTechnology.close() from another thread.

    Only one TagTechnology object can be connected to a Tag at a time.

    Applications must call TagTechnology.close() when I/O operations are complete.

    Requires the android.Manifest.permission#NFC permission.

    Specified by:

    connect in interface TagTechnology

    Throws:

    IOException - if there is an I/O failure, or connect is canceled

    See Also:

    TagTechnology.close()

  • reconnect

    public void reconnect()
                   throws IOException

    Description copied from interface: TagTechnology
    Re-connect to the Tag associated with this connection. Reconnecting to a tag can be used to reset the state of the tag itself.

    May cause RF activity and may block. Must not be called from the main application thread. A blocked call will be canceled with IOException by calling TagTechnology.close() from another thread.

    Requires the android.Manifest.permission#NFC permission.

    Specified by:

    reconnect in interface TagTechnology

    Throws:

    IOException - if there is an I/O failure, or connect is canceled

    See Also:

    TagTechnology.connect(), TagTechnology.close()

  • close

    public void close()
               throws IOException

    Description copied from interface: TagTechnology
    Disable I/O operations to the tag from this TagTechnology object, and release resources.

    Also causes all blocked I/O operations on other thread to be canceled and return with IOException.

    Requires the android.Manifest.permission#NFC permission.

    Specified by:

    close in interface TagTechnology

    Specified by:

    close in interface Closeable

    Specified by:

    close in interface AutoCloseable

    Throws:

    IOException

    See Also:

    TagTechnology.connect()