Class android.nfc.cardemulation.CardEmulation

Added Methods
void registerNfcEventCallback(Executor, NfcEventCallback)  
void unregisterNfcEventCallback(NfcEventCallback)  
 

Added Fields
int NFC_INTERNAL_ERROR_COMMAND_TIMEOUT  
int NFC_INTERNAL_ERROR_NFC_CRASH_RESTART  
int NFC_INTERNAL_ERROR_NFC_HARDWARE_ERROR  
int NFC_INTERNAL_ERROR_UNKNOWN  
String PROPERTY_ALLOW_SHARED_ROLE_PRIORITY