private void parseMifareTag(Tag tag) {
MifareClassic mfc = MifareClassic.get(tag);
try {
mfc.connect();
receiveTab.append("\nThis worked for Mifare");
} catch (IOException ex) {
receiveTab.append("\nMifare read attempt threw an error");
}
}
private void resolveIntent(Intent intent) {
String action = intent.getAction();
toast("resolving intent");
if (NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action)) {
toast("RESOLVE THIS INTENT");
Tag tagFromIntent = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
receiveTab.append("\nResolve Intent for NDEF discovery");
} else if (NfcAdapter.ACTION_TECH_DISCOVERED.equals(action)) {
Tag tagFromIntent = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
MifareClassic mfc = MifareClassic.get(tagFromIntent);
byte[] data;
receiveTab.append("\nNew tech tag received");
try {
mfc.connect();
boolean auth = false;
String cardData = null;
int secCount = mfc.getSectorCount();
int bCount = 0;
int bIndex = 0;
for (int j = 0; j < secCount; j++) {
auth = mfc.authenticateSectorWithKeyA(j, MifareClassic.KEY_DEFAULT);
if (auth) {
bCount = mfc.getBlockCountInSector(j);
bIndex = 0;
for (int i = 0; i < bCount; i++) {
bIndex = mfc.sectorToBlock(j);
data = mfc.readBlock(bIndex);
cardData = new String(data);
receiveTab.append("\n" + cardData);
bIndex++;
}
} else {
Toast.makeText(this, "Auth failed", Toast.LENGTH_LONG).show();
}
}
} catch (IOException ex) {
Toast.makeText(this, "IO Error while attempting to read mifare", Toast.LENGTH_LONG).show();
}
} else if (NfcAdapter.ACTION_TAG_DISCOVERED.equals(action)) {
receiveTab.append("\nSome Tag found from card");
Tag tagFromIntent = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
receiveTab.append("\n" + tagFromIntent.toString());
for (int k = 0; k < tagFromIntent.getTechList().length; k++) {
receiveTab.append("\nTech List: " + tagFromIntent.getTechList()[k]);
if (tagFromIntent.getTechList()[k].equals("android.nfc.tech.NfcA")) {
// Run connection method
parseNfcATag(tagFromIntent);
// connectToNDEF(tagFromIntent);
// parseMifareTag(tagFromIntent);
} else if (tagFromIntent.getTechList()[k].equals("android.nfc.tech.Ndef")) {
connectToNDEF(tagFromIntent);
// receiveTab.append("\nRun connect to NDEF");
}
}
}
}
@Override
protected String doInBackground(Intent... params) {
Intent mIntent = params[0];
Tag tagFromIntent = mIntent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
MifareClassic tag = MifareClassic.get(tagFromIntent);
try {
tag.connect();
} catch (IOException e) {
// Die Karte wurde schnell entfernt, ist nicht schlimm, wir brauchen an
// dieser Stelle nichts zu tun, es ist vorgesehen, dass es einfach weiter geht.
}
while (tag.isConnected()) {
// Hier passiert nichts! Waehrend dieser Schleife werden naemlich
// die Daten des Fahrers dargestellt. Man bleibt in der Schleife,
// so lange man den Tag an dem NFC-Lesegeraet haelt. Wird der Tag
// vom Lesegeraet entfernt, dann verlassen wir die Schleife.
}
return null;
}
/**
* Initialize a Mifare Classic reader for the given tag.
*
* @param tag The tag to operate on.
*/
private MCReader(Tag tag) {
mTag = tag;
mMFC = MifareClassic.get(mTag);
}
private void resolveIntent(Intent intent) {
// 1) Parse the intent and get the action that triggered this intent
String action = intent.getAction();
// 2) Check if it was triggered by a tag discovered interruption.
if (NfcAdapter.ACTION_TECH_DISCOVERED.equals(action)) {
mydialog = ProgressDialog.show(ReadCardActivity.this, "loading", "loading");
// 3) Get an instance of the TAG from the NfcAdapter
Tag tagFromIntent = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
// 4) Get an instance of the Mifare classic card from this TAG
// intent
MifareClassic mfc = MifareClassic.get(tagFromIntent);
MifareClassCard mifareClassCard = null;
try {
// 5.1) Connect to card
mfc.connect();
// 5.2) and get the number of sectors this card has..and loop
// thru these sectors
int secCount = mfc.getSectorCount();
mifareClassCard = new MifareClassCard(secCount);
// init information
String techtemp = "";
for (String tech : mfc.getTag().getTechList()) {
techtemp = techtemp + tech + "\n";
}
mifareClassCard.addValue("UID", Converter.getHexString(mfc.getTag().getId()));
mifareClassCard.addValue("TechList", techtemp);
// mifareClassCard.addValue("MemorySize", mfc.get);
int bCount = 0;
int bIndex = 0;
for (int j = 0; j < secCount; j++) {
boolean authKeyA = false;
boolean authKeyB = false;
MifareSector mifareSector = new MifareSector();
mifareSector.sectorIndex = j;
// 6.1) authenticate the sector
for (String key : defaultKeys) {
if (!authKeyA) {
authKeyA = mfc.authenticateSectorWithKeyA(j, Converter.hexStringToByteArray(key));
mifareSector.keyA = new MifareKey(Converter.hexStringToByteArray(key));
}
if (!authKeyB) {
authKeyB = mfc.authenticateSectorWithKeyB(j, Converter.hexStringToByteArray(key));
mifareSector.keyB = new MifareKey(Converter.hexStringToByteArray(key));
}
// 都满足则break
if (authKeyA && authKeyB) {
break;
}
}
if ((authKeyA && authKeyB) || authKeyA || authKeyB) {
mifareSector.authorized = true;
// 6.2) In each sector - get the block count
bCount = mfc.getBlockCountInSector(j);
bCount = Math.min(bCount, MifareSector.BLOCKCOUNT);
bIndex = mfc.sectorToBlock(j);
// set access condition
byte[] acdata = mfc.readBlock(bIndex + 3);
String hexString = Converter.getHexString(acdata, 16);
mifareSector.accessCondition = hexString.substring(12, 20);
for (int i = 0; i < bCount; i++) {
// 6.3) Read the block
byte[] data = mfc.readBlock(bIndex);
// System.out.println(Converter.getHexString(data, 16));
MifareBlock mifareBlock = new MifareBlock(mifareSector);
mifareBlock.setData(data);
mifareBlock.setIndex(bIndex);
// 7) Convert the data into a string from Hex
// format.
bIndex++;
mifareSector.blocks[i] = mifareBlock;
}
mifareClassCard.setSector(mifareSector.sectorIndex, mifareSector);
} else { // Authentication failed - Handle it
mifareSector.authorized = false;
}
}
this.mydialog.dismiss();
mfc.close();
Intent dataIntent = new Intent(this, ViewCardActivity.class);
Bundle bundle = new Bundle();
bundle.putSerializable("mifare", mifareClassCard);
dataIntent.putExtras(bundle);
this.startActivityForResult(dataIntent, 0);
this.finish();
} catch (IOException e) {
Log.e(TAG, e.getLocalizedMessage());
showAlert(3);
this.mydialog.dismiss();
} finally {
if (mifareClassCard != null) {
// mifareClassCard.debugPrint();
}
}
} // End of IF
} // End of method
