nfc_classic_mifare 0.3.5

A Flutter plugin for reading and writing Mifare Classic tags (Android Only).

nfc_mifare_classic

A Flutter plugin for Android for reading and writing NFC cards

Notice

• Only Mifare Classic
• Only NfcA technology
• Only works with default password

Setup

• Requires Android API level 19 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

Thanks

This plugin in based on the original package mifare_nfc_classic of Andres Maldonado (https://github.com/MaldonadoAndres/mifare_nfc_classic/). Sadly my pull request for Null Safety was not not yet integrated, so I published my own branch with a new package name.

Usage

Check NFC Availability

// Check availability
AVAILABILITY isAvailable = await NfcClassicMifare.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 NfcClassicMifare.sectorCount;
int _blockCount = await NfcClassicMifare.blockCount;

Read a specific Sector

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

Read a specific Block of a specific Sector

String _block = await NfcClassicMifare.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 NfcClassicMifare.readAll(password:password);
/*
[["FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"],
...
...
...
["FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"]]
*/

Write a specific Block of a specific Sector

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

Change Password of a Sector

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

Write Raw Hexadecimal

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