codeUnits
gets you a List<int>
Uint8List.fromList(...)
converts List<int>
to Uint8List
String.fromCharCodes(...)
converts List<int>
or Uint8List
to String
List<int> list="xxx".codeUnits;
Uint8List bytes = Uint8List.fromList(list);
String string = String.fromCharCodes(bytes);