程序包 ohos.nfc.tag

类 NfcFTag

java.lang.Object

ohos.nfc.tag.TagManager

ohos.nfc.tag.NfcFTag

public class NfcFTag
extends TagManager

Provides methods for creating an NFC-F tag, obtaining tag information, and controlling tag read and write.

This class inherits from the TagManager abstract class.

从以下版本开始:

5

SystemCapability

SystemCapability.Communication.NFC

字段概要

从类继承的字段 ohos.nfc.tag.TagManager

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

方法概要

限定符和类型	方法	说明
static Optional<NfcFTag>	getInstance(TagInfo tagInfo)	Obtains an NfcFTag instance for the given tag.
byte[]	getPMm()	Obtains the PMm (consisting of the IC code and manufacturer parameters) from this NfcFTag instance.
byte[]	getSystemCode()	Obtains the system code from this NfcFTag instance.

从类继承的方法 java.lang.Object

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

从类继承的方法 ohos.nfc.tag.TagManager

checkConnected, connectTag, getMaxSendLength, getSendDataTimeout, getTagInfo, isTagConnected, reset, sendData, setSendDataTimeout

方法详细资料

getInstance

public static Optional<NfcFTag> getInstance(TagInfo tagInfo)

Obtains an NfcFTag instance for the given tag.

You can call this method to obtain an NfcFTag instance only if the given tag supports NFC-F.

参数:

tagInfo - Indicates information about the given tag.

返回:

Returns the NfcFTag instance.

从以下版本开始:

5

getSystemCode

public byte[] getSystemCode()

Obtains the system code from this NfcFTag instance.

返回:

Returns the system code.

从以下版本开始:

5

getPMm

public byte[] getPMm()

Obtains the PMm (consisting of the IC code and manufacturer parameters) from this NfcFTag instance.

返回:

Returns the PMm.

从以下版本开始:

5