MifareClassicInterface.cs

using Android.Nfc;
using Android.Nfc.Tech;
using NeuroAccess.Nfc;
 
namespace NeuroAccessMaui.AndroidPlatform.Nfc
{
    public class MifareClassicInterface(Tag Tag, MifareClassic Technology)
        : NfcInterface(Tag, Technology), IMifareClassicInterface
    {
        private readonly MifareClassic mifareClassic = Technology;
 
        public async Task<byte[]> ReadAllData()
        {
            //MifareClassicType Type = this.mifareClassic.Type;
            int BlockCount = this.mifareClassic.BlockCount;
            //int SectorCount = this.mifareClassic.SectorCount;
            int TotalBytes = BlockCount << 4;
            byte[] Data = new byte[TotalBytes];
            int BlockIndex = 0;
 
            while (BlockIndex < BlockCount)
            {
                byte[]? Block = await this.mifareClassic.ReadBlockAsync(BlockIndex++);
                if (Block is null || Block.Length != 16)
                    throw UnableToReadDataFromDevice();
 
                Array.Copy(Block, 0, Data, BlockIndex << 4, 16);
            }
 
            return Data;
        }
    }
}