The Contactless Communication API is supported as specified in the feature description but with the following exceptions.
If a MIDlet is running and no listeners are registered to DiscoveryManager, the device reacts to touching
a tag as it would if the MIDlet was not running. If the MIDlet registers
an NDEFRecordListener, any native NFC application
stops reacting to detected NDEF records even if the type of the detected
NDEF record is not being listened to by the MIDlet.
MIDlets can establish only one NFC connection at a time. To open a new connection, any previous
connection must be first closed by calling the Connection.close method.
If multiple contactless targets are detected, the targetDetected method only returns the properties
of the first target detected.
The Symbian platform supports the following TargetTypes:
NDEF_TAG
RFID_TAG
The Symbian platform does not support the following TargetTypes:
ISO14443_CARD
VISUAL_TAG
If a MIDlet registers an NDEFRecordListener for an NDEF record type
that is reserved for native applications, the MIDlet is notified of
new records only if it is running in the foreground. For a list of
reserved NDEF record types, see the Contactless Communication API extensions specification.
If a MIDlet registers both a TargetListener for NDEF_TAG and an NDEFRecordListener, only TargetListener.targetDetected is called when an NDEF record
is detected. NDEFRecordListener.recordDetected is
not called.
The Symbian platform does not support using the following methods on Innovision Jewel tags:
write(byte[] bytes, int startAddress, boolean erase)
write(int b, int address, boolean erase)
writeLogical(byte[] data, int startAddress, boolean
erase)
writeOTP(byte[] otpBits)
writeOTPBit(int bitNumber)
If a MIDlet tries to write on an Innovision Jewel tag, a ContactlessException is thrown.
The write methods are supported normally for Innovision Topaz tags.