android beam nfc

The previous chapter simply introduces the understanding and configuration of NFC Android, and this time you know about NFC cards.The card is divided into 16 sectors (sector), each sector is divided into 4 blocks (block) Each block contains 16 bytes,such as "1234567890123456", "Asdfghjklqwertyu", can access some information,Because the types of cards are differen

Today, we have a CSDN community activity to answer questions about how to learn, understand, and develop the Android system, and learn more about Android: wi-Fi, NFC, and GPS book answers questions and understands the implementation principles of the Android Framework. Activity link: http://bbs.csdn.net/topics/39076527

Android system detects NFC tags, encapsulates them into Tag classes, and stores them in the Intent NfcAdapter. EXTRA_TAG Extra data packet. You can use MifareClassic. get (Tag) to obtain the MifareClassic class of the object. [Java]Tag tagFromIntent = intent. getParcelableExtra (NfcAdapter. EXTRA_TAG );// 4) Get an instance of the Mifare classic card from this TAG// IntentMifareClassic mfc = MifareClassic.