Peer-to-peer NFC - how to send multiple messages?

I am able to send one message from a device and read on the other.

I wanted to do a handshake 3 channels using NFC, my goal was to have:
-App 1 writes a tag that begins app 2 served if it does not work
-App 2 sends a piece of application data 1
-On receiving app 1 sends another piece of data in response to app 2

To receive the data, I use a
invoke targe
-With a:
- Then I connect to InvokeManager::invoked, in which I extracted the payload

To send the data, I use
-nfc_create_ndef_record (NDEF_TNF_EXTERNAL
-nfc_push_ndef_message
-J' use the nfc_target_t that I get in the NFC_SNEP_CONNECTION_EVENT event.

I'm able to push the message immediately NFC_SNEP_CONNECTION_EVENT, or later in an asynchronous event.
But I can't push the message twice, otherwise it is received only once

I have not found a way to use the native functions of nfc_ * to read the data of the NFC. I call nfc_register_tag_readerwriter (TAG_TYPE_NDEF), but AbstractBpsEventHandler::event is never called

Hi Martin

Unfortunately you can not send multiple push messages in the context of a single NFC "tap." You must have the users of separate devices and tap again before you can send your second push message.

The way alternative and probably better to implement your handshake is to use LLCP.

I work on a sample of code for this right now and will be published as soon as possible.

Concerning

Martin

Tags: BlackBerry Developers

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