Stop transfer - how to handle

[d00m303]

Hello, sorry for my maybe stupid question, but im fighting this all the day ;)
What is the best way to stop current transfer? Im using very large files like 100-300gb and i want to add 'stop' functionality.

await ftpConnect.connect();
bool res = await ftpConnect.downloadFile(
fileName,
File(lista2![currentIndex]),
onProgress: (progressInPercent, totalReceived, fileSize) {
percent = progressInPercent;
received = totalReceived;
total = fileSize;

      status = "DL: ${percent}%";
      if (stop) {
        ftpConnect.sendCustomCommand("QUIT");
        ftpConnect.disconnect();
        downloading = false;
        percent = 0.0;
        done = false;
        stop = false;
        notifyListeners();
      }
      notifyListeners();
    },
  );

Im trying something like this all the day and even when its said Disconnected file is still downloading in bg till i stop the app.
Many thanks for help, greets!

[dithom]

@d00m303 Were you able to solve this issue? Running into the same problem here, as futures can not be canceled.

Edit: See my PR.