unpack function
Implementation
Uint8List unpack(Uint8List packedData) {
Uint8List unpackedData = Uint8List(0);
final archive = ZipDecoder().decodeBytes(packedData);
var file = archive.findFile("data");
if (file != null) {
unpackedData = Uint8List.fromList(file.content as List<int>);
}
return unpackedData;
}