# Modules.Nfc.TagTechnologyNfcA

Provides access to NFC-A (ISO 14443-3A) properties and I/O operations on a Modules.Nfc.NfcTag.

Availability

1.1.0

Extends

Modules.Nfc.TagTechnology

# Overview

Use the Modules.Nfc.createTagTechnologyNfcA method to create this tag technology.

# Properties

# apiName READONLY

Availability

3.2.0

apiName :String

The name of the API that this proxy corresponds to.

The value of this property is the fully qualified name of the API. For example, Titanium.UI.Button returns Ti.UI.Button.

# lifecycleContainer

Availability

3.6.0

lifecycleContainer :Titanium.UI.Window | Titanium.UI.TabGroup

The Window or TabGroup whose Activity lifecycle should be triggered on the proxy.

If this property is set to a Window or TabGroup, then the corresponding Activity lifecycle event callbacks will also be called on the proxy. Proxies that require the activity lifecycle will need this property set to the appropriate containing Window or TabGroup.

# tag

Availability

1.1.0

tag :Modules.Nfc.NfcTag

The tag technology that has been discovered.

When a tag is discovered, a Modules.Nfc.NfcTag proxy is created and passed as a property to the onNdefDiscovered, onTagDiscovered, or onTechDiscovered callback (see NdefDiscovered).

# Methods

# close

Availability

1.1.0

close() → void

Disable I/O operations to the tag and release resources.

Returns

Type: void

# connect

Availability

1.1.0

connect() → void

Enable I/O operations to the tag.

Only one Tag Technology proxy can be connected to a Tag at a time.

Returns

Type: void

# getAtqa

Availability

1.1.0

getAtqa() → Titanium.Buffer

Return the ATQA/SENS_RES bytes from tag discovery.

Returns

ATQA/SENS_RES bytes.

Type: Titanium.Buffer

# getMaxTransceiveLength

Availability

1.1.0

getMaxTransceiveLength() → Number

Return the maximum number of bytes that can be sent with transceive.

Returns

Type: Number

# getSak

Availability

1.1.0

getSak() → Number

Return the SAK/SEL_RES bytes from tag discovery.

Returns

SAK bytes.

Type: Number

# getTimeout

Availability

1.1.0

getTimeout() → Number

Get the current transceive timeout in milliseconds.

Returns

Type: Number

# isConnected

Availability

1.1.0

isConnected() → Boolean

Returns true if connect has completed, and close has not been called, and the tag is not known to be out of range.

Returns

Type: Boolean

# isValid

Availability

1.1.0

isValid() → Boolean

Return true if this tag technology was successfully obtained.

Returns

Type: Boolean

# setTimeout

Availability

1.1.0

setTimeout(timeout) → void

Set the timeout of transceive in milliseconds.

Parameters

Name	Type	Description
`timeout`	Number	Timeout value in milliseconds

Returns

Type: void

# transceive

Availability

1.1.0

transceive(data) → Titanium.Buffer

Send raw NFC-A commands to the tag and receive the response.

Parameters

Name	Type	Description
`data`	Titanium.Buffer	Bytes to send.

Returns

Response bytes received.

Type: Titanium.Buffer