Original project: https://github.com/MaldonadoAndres/mifare_nfc_classic

mifare_nfc_classic 0.2.3

Fork making project compatible with (Dart 3) A Flutter plugin for Android for reading and writing NFC cards

Notice

• Only Mifare Classic
• Only NfcA technology
• Only works with passwords if sector B

Setup

• Requires Android API level 31 or later.
• Add android.permission.NFC to your AndroidManifest.xml.

Notes

• Remember that you shouln't write in the sector 0 of any card
• If you write in the 4th block of any sector write down what you write this is the new password for write and read in this sector
• In all cases the password parameter is optional, is only in the case the sector has a custom password

Usage

Check NFC Availability

// Check availability
AVAILABILITY isAvailable = await MifareNfcClassic.availability;
switch(isAvailable){
    case(AVAILABILITY.AVAILABLE):
        //NFC is enabled.
        break;
    case(AVAILABILITY.NOT_ENABLED):
        //The phone support NFC but user has to enable it.
        break;
    case(AVAILABILITY.NOT_SUPPORTED):
        //The phone doesn't support NFC.
        break;
}

Get Sector or Block Count

int _sectorCount = await MifareNfcClassic.sectorCount;
int _blockCount = await MifareNfcClassic.blockCount;

Read a specific Sector

List<String> _sector = await MifareNfcClassic.readSector(sectorIndex: index, password: password)
/*
["FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"]
*/

Read a specific Block of a specific Sector

String _block = await MifareNfcClassic.readBlock(blockIndex: _blockIndex, password: password);
/*
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
*/

Read all sectors of a card

Note: This operation take some seconds so leave the card close to the phone like for 2 seconds.

List<List<String>> _card = await MifareNfcClassic.readAll(password: password);
/*
[["FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"],
...
...
...
["FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"]]
*/

Write a specific Block of a specific Sector

bool didWrite = await  MifareNfcClassic.writeBlock(blockIndex: _blockIndex, message: _message, password: password);
/*
didWrite indicates if the operation completed successfully or not.
*/

Change Password of a Sector

await  MifareNfcClassic.changePasswordOfSector(sectorIndex: _sectorIndex, newPassword: _newPassword, password: password);

Write Raw Hexadecimal

await  MifareNfcClassic.writeRawHexToBlock(blockIndex: _blockIndex, message: rawHex, password: password);