| ConnectionHandover | An interface for classes supporting communication established using Nfc but with an out-of-band data transfer. |
| NdefHandler | A callback issued when an Nfc tag is read. |
| Nfc.OnTagWriteListener | Interface definition for a callback called after an attempt to write an Nfc tag. |
| PrioritizedHandler | Specifies the priority used to determine the order in which handlers are executed. |
| ConnectionHandoverManager | |
| NdefFactory | A utility class for generating NDEF messages. |
| Nfc | This class acts as an abstraction layer for Android's Nfc stack. |