Re: [android-developers] Nfc phone read the type A card.

I guss that you Android NFC does not allow use 2 nfc tech to connect a
tag at the same time. Why do you use them like so? what is the user
scenario?

2011/9/6 xiaoailsa <zsbitxiaodai@163.com>:
> Hi all:
> I have some questions about read the card(type A).I hope someone
> can communicate with me and help me.Thank you very much.
> Q1: I want to use two classes:IsoDep and NfcA to read a type A
> card.But how to use at the same time?
> →mTechLists = new String[][] { new String[]
> {IsoDep.class.getName()} };
> //mTechLists = new String[][] { new String[]
> {NfcA.class.getName()} };
> →public void onResume() {
> super.onResume();
> mAdapter.enableForegroundDispatch(this, mPendingIntent,
> mFilters, mTechLists);}
> Q2: In the IsoDep class, "transceive (byte[ ] data)" means send
> raw IsoDep data to the tag and receive the response. How to send data?
> Q3: →public byte[] getHistoricalBytes ()
> The historical bytes can be used to help identify a tag. They
> are present only on IsoDep tags that are based on NfcA RF technology.
> If this tag is not NfcA then null is returned.
> What 's the meaning?
>
> Thank you !
>
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Best regards

calvin xie

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