public class MifareUltralight

  1. Object
  2. TagTechnology
  3. MifareUltralight

NXP MIFARE Ultralight / Ultralight C / NTAG21x technology view. Page-level read/write of 4-byte pages.

Supported on Android (MifareUltralight) and iOS 13+ (subset of NFCMiFareTag).

Constructors

public MifareUltralight()

Methods

public int getPageCount()Number of pages on this tag.
public AsyncResource<byte[]> readPages(int firstPage)Reads 4 pages (16 bytes) starting at firstPage.
public AsyncResource<Boolean> writePage(int page, byte[] data)Writes a single 4-byte page.
public final TagType getType()The technology variant this view represents.

Inherited methods

From TagTechnology

transceive

From Object

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

Constructor details

MifareUltralight

public MifareUltralight()

Method details

getPageCount

public int getPageCount()
Number of pages on this tag. 16 for Ultralight, 48 for Ultralight C, 45 for NTAG213, 135 for NTAG215, 231 for NTAG216. Returns 0 when the port has not populated this field.

readPages

public AsyncResource<byte[]> readPages(int firstPage)
Reads 4 pages (16 bytes) starting at firstPage. Pages roll over to page 0 when the request runs past the end.

writePage

public AsyncResource<Boolean> writePage(int page, byte[] data)
Writes a single 4-byte page. Fails with NfcError.READ_ONLY for vendor / OTP / lock pages.

getType

public final TagType getType()
The technology variant this view represents.