[android-developers] Re: android nfc tech API help

Hallo Priti,

> I can get a NfcA object using the getTag(tag) method.
> NfcA myTag = NfcA.getTag(tag);
>
> I then do a
> [...]
>     retData = myTag.transcieve(apduCmd); //where apduCmd has a Select
> AID cmd}

Right, you are supposed to get an exception with this. The NfcA tech
is for "low-level" access to ISO 14443 Type A tags (i.e. the
proprietary protocol as mentioned in ISO 14443-3.) Exchanging APDUs
happens on top of ISO 14443-4 data exchange protocol (which is
independend of whether you use type A or B by the way). The correct
tech for this is IsoDep.

br
Michael

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