程序包 ohos.nfc.tag

类 NfcVTag

java.lang.Object

ohos.nfc.tag.TagManager

ohos.nfc.tag.NfcVTag

public class NfcVTag
extends TagManager

Provides methods for creating an NFC-V 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
byte	getDsfId()	Obtains the data storage format identifier (DSFID) from this NfcVTag instance.
static Optional<NfcVTag>	getInstance(TagInfo tagInfo)	Obtains an NfcVTag instance for the given tag.
byte	getResponseFlags()	Obtains the response flags from this NfcVTag 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<NfcVTag> getInstance(TagInfo tagInfo)

Obtains an NfcVTag instance for the given tag.

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

参数:

tagInfo - Indicates information about the given tag.

返回:

Returns the NfcVTag instance.

从以下版本开始:

5

getResponseFlags

public byte getResponseFlags()

Obtains the response flags from this NfcVTag instance.

返回:

Returns the response flags.

从以下版本开始:

5

getDsfId

public byte getDsfId()

Obtains the data storage format identifier (DSFID) from this NfcVTag instance.

返回:

Returns the DSFID.

从以下版本开始:

5