readBlock method
Sends the Read Block command to the tag.
This uses MifareClassic#readBlock API on Android.
Implementation
Future<Uint8List> readBlock({
required int blockIndex,
}) async {
return channel.invokeMethod('MifareClassic#readBlock', {
'handle': _tag.handle,
'blockIndex': blockIndex,
}).then((value) => value!);
}