Package apple.corenfc.protocol

Interface NFCVASReaderSessionDelegate

public interface NFCVASReaderSessionDelegate

[@protocol] NFCVASReaderSessionDelegate Value Added Service (VAS) reader session callbacks. API-Since: 13.0

Method Summary

Modifier and Type	Method	Description
default void	readerSessionDidBecomeActive(@NotNull NFCVASReaderSession session)	readerSessionDidBecomeActive: Gets called when the NFC reader session has become active.
void	readerSessionDidInvalidateWithError(@NotNull NFCVASReaderSession session, @NotNull NSError error)	readerSession:didInvalidateWithError: Gets called when a session becomes invalid.
void	readerSessionDidReceiveVASResponses(@NotNull NFCVASReaderSession session, @NotNull NSArray<? extends NFCVASResponse> responses)	readerSession:didReceiveVASResponses: Gets called when the reader completes the requested VAS transaction.

Method Detail

readerSessionDidInvalidateWithError

void readerSessionDidInvalidateWithError(@NotNull
                                         @NotNull NFCVASReaderSession session,
                                         @NotNull
                                         @NotNull NSError error)

readerSession:didInvalidateWithError: Gets called when a session becomes invalid. At this point the client is expected to discard the returned session object. API-Since: 13.0

Parameters:

session - The session object that is invalidated.

error - The error indicates the invalidation reason.

readerSessionDidReceiveVASResponses

void readerSessionDidReceiveVASResponses(@NotNull
                                         @NotNull NFCVASReaderSession session,
                                         @NotNull
                                         @NotNull NSArray<? extends NFCVASResponse> responses)

readerSession:didReceiveVASResponses: Gets called when the reader completes the requested VAS transaction. Polling is automatically restarted once the detected tag is removed from the reader's read range. API-Since: 13.0

Parameters:

session - The session object used for tag detection.

responses - Array of @link NFCVASResponse @link/ objects. The order of the response objects follows the sequence of GET VAS DATA sent by the reader session.

readerSessionDidBecomeActive

default void readerSessionDidBecomeActive(@NotNull
                                          @NotNull NFCVASReaderSession session)

readerSessionDidBecomeActive: Gets called when the NFC reader session has become active. RF is enabled and reader is scanning for VAS tags. The @link readerSession:didReceiveVASResponses: @link/ will be called when a VAS transaction is completed. API-Since: 13.0

Parameters:

session - The session object in the active state.