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Bidirectional Android Beam

Here is what I'm trying to do with 2 Galaxy Nexuses running Android 4.0 with NFC capabilities:

  • Device A and B are close enough to trigger the Android Beam user interface.
  • Device A sends a beam to device B
  • The received beam from device B does some processing and then sends a response beam back to device A

I have an initial ray from A → B that works fine, but not with feedback. I want to send something more than just “ACK” as some useful information. Is there a way to do this over NFC with current APIs, or will I have to look at the WiFi / BT p2p connection?

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5 answers

, , , B A . NFC BT .

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NFC Android

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( ) Android Android Beam, . , / . ISO/IEC 14443-4 APDU (. ISO/IEC 7816-4) .

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I have not tried this myself, but you could get a bidirectional communication form using one phone in read / write mode and another phone in host-based card emulation (HCE) mode. See also this topic: Is NFC read / write mode only for tags? .

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