Package com.codename1.nfc

package com.codename1.nfc

Near Field Communication (NFC) API: read and write NDEF messages, exchange APDUs with contactless smart cards, and host-emulate as a card.

Nfc.getInstance() returns the platform implementation; supporting classes cover NDEF (NdefMessage, NdefRecord), tag discovery (Tag, TagType, TagTechnology, NfcListener, NfcReadOptions), specific tag technologies (IsoDep, MifareClassic, MifareUltralight, NfcA, NfcB, NfcF, NfcV), APDU exchange (ApduResponse) and host card emulation (HostCardEmulationService). Failures surface through NfcError and NfcException.

Class	Description
ApduResponse	Helpers for working with the ISO 7816 status word (SW1/SW2) trailer at the end of every APDU response.
HostCardEmulationService	Application-supplied handler for Host Card Emulation (HCE) -- the mode where the device acts as a contactless smart card and answers APDUs from a nearby reader/terminal.
IsoDep	ISO 14443-4 / ISO 7816-4 technology view: send APDU command-response pairs to a contactless smart card (EMV payment, ePassport, government ID, transit).
MifareClassic	NXP MIFARE Classic 1K/4K technology view.
MifareUltralight	NXP MIFARE Ultralight / Ultralight C / NTAG21x technology view.
NdefMessage	An NDEF message -- the payload of an NDEF-formatted tag.
NdefRecord	A single NDEF (NFC Data Exchange Format) record.
Nfc	Entry point for the Codename One NFC API -- read and write NDEF messages, exchange APDUs with smart cards, and host-emulate as a contactless card.
NfcA	NFC-A (ISO 14443-3A) raw transceive view.
NfcB	NFC-B (ISO 14443-3B) raw transceive view.
NfcError	Typed error codes returned by Nfc and HostCardEmulationService when an asynchronous NFC operation fails.
NfcException	Thrown via the failure path of an AsyncResource returned by Nfc when an NFC read, write, or HCE operation fails.
NfcF	FeliCa (JIS X 6319-4) technology view -- the contactless protocol used by Suica, PASMO, ICOCA and other Japanese transit / payment cards.
NfcListener	Callback for long-running tag-discovery sessions registered via Nfc.addTagListener(NfcListener).
NfcReadOptions	Configures a single call to Nfc.readTag(NfcReadOptions) or Nfc.addTagListener(NfcListener).
NfcV	ISO 15693 (vicinity-card) technology view.
Tag	A tag discovered by Nfc.readTag(NfcReadOptions) or Nfc.addTagListener(NfcListener).
TagTechnology	Common surface for the low-level technology views attached to a Tag -- IsoDep, MifareClassic, MifareUltralight, NfcA, NfcB, NfcF, NfcV.
TagType	Tag technologies that a discovered Tag may support.