程序包 ohos.nfc.tag

类 NfcBTag

java.lang.Object

ohos.nfc.tag.TagManager

ohos.nfc.tag.NfcBTag

public class NfcBTag
extends TagManager

Provides interfaces to create an NfcBTag and perform I/O operations on the tag.

This class inherits from the TagManager abstract class and provides interfaces to create an NfcBTag and obtain the tag information.

从以下版本开始:

3

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 NfcBTag	getInstance(TagInfo tagInfo)	Obtains an NfcBTag object based on the given tag.
byte[]	getRespAppData()	Obtains the application data of a tag.
byte[]	getRespProtocol()	Obtains the protocol information of a tag.

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 NfcBTag getInstance(TagInfo tagInfo)

Obtains an NfcBTag object based on the given tag.

During tag reading, if the tag supports the NFC-B technology, an NfcBTag object will be created based on the tag information.

参数:

tagInfo - Indicates the information about the given tag.

返回:

Returns the NfcBTag object.

从以下版本开始:

3

getRespAppData

public byte[] getRespAppData()

Obtains the application data of a tag.

返回:

Returns the application data of the tag.

从以下版本开始:

3

getRespProtocol

public byte[] getRespProtocol()

Obtains the protocol information of a tag.

返回:

Returns the protocol information of the tag.

从以下版本开始:

3