hexStringToUint8List function
Implementation
Uint8List hexStringToUint8List(String hexString) {
final results = Uint8List(hexString.length ~/ 2);
for (int i = 0; i < results.length; ++i) {
results[i] = int.parse(hexString.substring(i * 2, i * 2 + 2), radix: 16);
}
return results;
}