程序包 ohos.nfc.tag

类 TagInfo

java.lang.Object

ohos.nfc.tag.TagInfo

所有已实现的接口:

Sequenceable

public class TagInfo
extends Object
implements Sequenceable

Provides tag information.

This class provides the technology a tag supports, for example, NFC-A. Applications can create different tags based on the supported technology.

从以下版本开始:

1

SystemCapability

SystemCapability.Communication.NFC

嵌套类概要

从接口继承的嵌套类/接口 ohos.utils.Sequenceable

Sequenceable.Producer<T>

字段概要

字段

限定符和类型	字段	说明
static String	EXTRA_TAG_EXTRAS	Indicates the key used to obtain the extraneous information of technology supported by the tag.
static String	EXTRA_TAG_HANDLE	Indicates the key used to obtain the tag handle.

方法概要

限定符和类型	方法	说明
byte[]	getTagId()	Obtains the ID of this tag.
int[]	getTagSupportedProfiles()	Obtains the protocol or technology supported by this tag.
boolean	isProfileSupported(int profile)	Checks whether a tag supports a specified protocol or technology.
boolean	marshalling(Parcel out)	Marshals this Sequenceable object into a Parcel.
boolean	unmarshalling(Parcel in)	Unmarshals this Sequenceable object from a Parcel.

从类继承的方法 java.lang.Object

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

从接口继承的方法 ohos.utils.Sequenceable

hasFileDescriptor

字段详细资料

EXTRA_TAG_EXTRAS

public static final String EXTRA_TAG_EXTRAS

Indicates the key used to obtain the extraneous information of technology supported by the tag.

从以下版本开始:

1

另请参阅:

常量字段值

EXTRA_TAG_HANDLE

public static final String EXTRA_TAG_HANDLE

Indicates the key used to obtain the tag handle.

从以下版本开始:

1

另请参阅:

常量字段值

方法详细资料

marshalling

public boolean marshalling(Parcel out)

从接口复制的说明: Sequenceable

Marshals this Sequenceable object into a Parcel.

指定者:

marshalling 在接口中 Sequenceable

参数:

out - Indicates the Parcel object to which the Sequenceable object will be marshaled..

返回:

Returns true if the marshalling is successful; returns false otherwise.

unmarshalling

public boolean unmarshalling(Parcel in)

从接口复制的说明: Sequenceable

Unmarshals this Sequenceable object from a Parcel.

指定者:

unmarshalling 在接口中 Sequenceable

参数:

in - Indicates the Parcel object into which the Sequenceable object has been marshaled.

返回:

Returns true if the unmarshalling is successful; returns false otherwise.

getTagId

public byte[] getTagId()

Obtains the ID of this tag.

返回:

Returns the ID of this tag.

从以下版本开始:

1

getTagSupportedProfiles

public int[] getTagSupportedProfiles()

Obtains the protocol or technology supported by this tag.

返回:

Returns the protocol or technology supported by this tag.

从以下版本开始:

1

isProfileSupported

public boolean isProfileSupported(int profile)

Checks whether a tag supports a specified protocol or technology.

参数:

profile - Indicates the specified protocol or technology.

返回:

Returns true if the tag supports the specified protocol or technology; returns false otherwise.

从以下版本开始:

1