public static ReadWithoutEncryptionResponse Read(Tag tag)
{
var nfcf = NfcF.Get(tag);
try
{
nfcf.Connect();
return(Read(nfcf));
}
catch (Exception e)
{
var errText = e.Message;
if (nfcf.IsConnected)
{
nfcf.Close();
}
return(null);
}
}
private void ProcessActionTechDiscoveredIntent(Intent intent)
{
string action = intent.Action;
if (action != NfcAdapter.ActionTechDiscovered)
{
return;
}
var tag = intent.GetParcelableExtra(NfcAdapter.ExtraTag) as Android.Nfc.Tag;
if (tag != null)
{
var subject = this.felicaReader.WhenCardFound() as Subject <IFelicaCardMedia>;
NfcF nfc = NfcF.Get(tag);
nfc.Connect();
subject.OnNext(new FelicaCardMediaImplementation(nfc));
}
}
public void OnNewIntent(Intent intent)
{
var tag = (Tag)intent.GetParcelableExtra(NfcAdapter.ExtraTag);
var nfc = NfcF.Get(tag);
try
{
nfc.Timeout = 50;
nfc.Connect();
subject.OnNext(new AndroidFeliCaReader(nfc));
}
catch (TagLostException)
{
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine(e);
}
}
private bool isFelicaTag(Tag tag)
{
bool returnVar = false;
NfcF mNfcF = NfcF.Get(tag);
if (mNfcF != null)
{
byte[] mPMm;
mPMm = mNfcF.GetManufacturer();
if (mPMm[0] == 0x01 && mPMm[1] == 0x20)
{
returnVar = true;
}
else if (mPMm[0] == 0x03 && mPMm[1] == 0x32)
{
returnVar = true;
}
}
return(returnVar);
}
public static bool IsFelicaTag(Tag tag)
{
NfcF mNfcF = NfcF.Get(tag);
if (mNfcF == null)
{
return(false);
}
byte[] mPMm = mNfcF.GetManufacturer();
if (mPMm == null)
{
return(false);
}
if (mPMm.Length < 2)
{
return(false);
}
return((mPMm[0] == 0x01 && mPMm[1] == 0x20) || (mPMm[0] == 0x03 && mPMm[1] == 0x32));
}
public (TagInfo?, NFCMessage) ReadInfo(Tag tag)
{
if (tag == null)
{
return(null, NFCMessage.NFC_NULL_TAG);
}
return(new TagInfo
{
Uid = tag.GetId(),
Tag = tag,
IsoDep = IsoDep.Get(tag),
MifareClassic = MifareClassic.Get(tag),
MifareUltralight = MifareUltralight.Get(tag),
NfcV = NfcV.Get(tag),
Ndef = Ndef.Get(tag),
NdefFormatable = NdefFormatable.Get(tag),
NfcA = NfcA.Get(tag),
NfcB = NfcB.Get(tag),
NfcF = NfcF.Get(tag),
NfcBarcode = NfcBarcode.Get(tag),
TechList = tag.GetTechList()
}, NFCMessage.NFC_NO_ERROR);
}
protected override void OnNewIntent(Intent intent)
{
NFCService nfcService = new NFCService();
//Tag検出されたら処理を実行
if (intent.Action == NfcAdapter.ActionTagDiscovered)
{
//検出データを抽出
var tag = (Tag)intent.GetParcelableExtra(NfcAdapter.ExtraTag);
// var id = intent.GetByteArrayExtra(NfcAdapter.ExtraId);
// var rawTagMessages = intent.GetParcelableArrayExtra(NfcAdapter.ExtraTag);
// var rawMessages = intent.GetParcelableArrayExtra(NfcAdapter.ExtraNdefMessages);
//接続設定、FericaはNFCFタグ
var nfcf = NfcF.Get(tag);
try
{
nfcf.Connect();
//Fericaの仕様：https://www.sony.co.jp/Products/felica/business/tech-support/st_usmnl.html
//鉄道系カードのシステムコード 0003
//Polling command
var packetSize = (byte)0x06;
var commandCode = (byte)0x00;
var systemCode = new byte[] { 0x00, 0x03 };
var requestCode = (byte)0x01;
var timeSlot = (byte)0x0f;
var pollingRequest = new byte[6];
pollingRequest[0] = packetSize;
pollingRequest[1] = commandCode;
pollingRequest[2] = systemCode[0];
pollingRequest[3] = systemCode[1];
pollingRequest[4] = requestCode;
pollingRequest[5] = timeSlot;
//Pollin commandの返信
var PoolingResponse = nfcf.Transceive(pollingRequest);
//IDm抽出
var IDm = new byte[8];
Array.Copy(PoolingResponse, 2, IDm, 0, 8);
//Service command for 属性情報
//サービスコード008bは属性情報 http://jennychan.web.fc2.com/format/suica.html#008B
commandCode = 0x02;
var serviceCodeNum = (byte)0x01;
var serviceCode = new byte[2] {
0x8b, 0x00
};
packetSize = (Convert.ToByte(serviceCodeNum * 2 + 11));
var serviceRequest = new byte[packetSize];
serviceRequest[0] = packetSize;
serviceRequest[1] = commandCode;
serviceRequest[2] = IDm[0];
serviceRequest[3] = IDm[1];
serviceRequest[4] = IDm[2];
serviceRequest[5] = IDm[3];
serviceRequest[6] = IDm[4];
serviceRequest[7] = IDm[5];
serviceRequest[8] = IDm[6];
serviceRequest[9] = IDm[7];
serviceRequest[10] = serviceCodeNum;
serviceRequest[11] = serviceCode[0];
serviceRequest[12] = serviceCode[1];
//Service commandの返信、読み捨て
var rawServiceRequestResponse = nfcf.Transceive(serviceRequest);
//サービスコマンド008bに対するRead without encryptionコマンド
commandCode = 0x06;
var blockNum = (byte)0x01;
var blockList = new byte[2] {
0x80, 0x00
};
packetSize = Convert.ToByte(serviceCodeNum * 2 + blockNum * 2 + 12);
var readWithoutEncryption = new byte[packetSize];
readWithoutEncryption[0] = packetSize;
readWithoutEncryption[1] = commandCode;
readWithoutEncryption[2] = IDm[0];
readWithoutEncryption[3] = IDm[1];
readWithoutEncryption[4] = IDm[2];
readWithoutEncryption[5] = IDm[3];
readWithoutEncryption[6] = IDm[4];
readWithoutEncryption[7] = IDm[5];
readWithoutEncryption[8] = IDm[6];
readWithoutEncryption[9] = IDm[7];
readWithoutEncryption[10] = serviceCodeNum;
readWithoutEncryption[11] = serviceCode[0];
readWithoutEncryption[12] = serviceCode[1];
readWithoutEncryption[13] = blockNum;
readWithoutEncryption[14] = blockList[0];
readWithoutEncryption[15] = blockList[1];
//Read without encryptionコマンドの返信、返信データは後ろの16byte分
//16byteの内訳 http://jennychan.web.fc2.com/format/suica.html#008B
var data = nfcf.Transceive(readWithoutEncryption);
//受信データをresDataにセット
nfcService.setresData(data, data.Length);
nfcf.Close();
}
catch
{
Toast.MakeText(Application.Context, "失敗、もう一度タッチしてください", ToastLength.Long).Show();
return;
}
}
}