如何在 Flutter 中检查 tcp 套接字是否仍然连接？

Question

I have connected to my server as follows:

Socket socket = await Socket.connect('xxx', xxx)

But now I want to check if the socket is still connected. It would be even better if I have a listener that tells me when the connection is broken.

Thanks already! Leonard

Answer 1

Listen to onDone in its stream

socket.stream.listen(
        (dynamic message) {
          debugPrint('message $message');
        },
        onDone: () {
          debugPrint('socket closed');//if closed you will get it here
        },
        onError: (error) {
          debugPrint('error $error');
        },
      );