Bad state: StreamSink is closed

[furkanKotic]

The Firebase log record, which is usually seen on Oppo devices, is as follows:

Fatal Exception: io.flutter.plugins.firebase.crashlytics.FlutterError: Bad state: StreamSink is closed
       at _WebSocketImpl.add(_WebSocketImpl.java)
       at DelegatingStreamSink.add(stream_sink.dart:35)
       at _CompleterSink.add(sink_completer.dart:88)
       at WebSocketChannelExtension.sendData(channel.dart:20)
       at Transport.sendAsyncMessage(transport.dart:162)
       at ClientImpl._onPing(client.dart:711)
       at ClientImpl._onPush(client.dart:719)
       at Transport._onData.<fn>.<fn>(transport.dart:266)
       at _GrowableList.forEach(_GrowableList.java)
       at Transport._onData.<fn>(transport.dart:262)

I think it is seen in the application that is pending in the background.

[FZambia]

You need to close client when app goes to the background. See https://github.com/centrifugal/centrifuge-dart#usage-in-background

[furkanKotic]

I should use disconnect when it goes to the background and use the connect function again when it goes to the foreground. Is it true?

Should I cancel all Stream when it goes to the background and recreate them when it goes to the foreground?

_imClient.connected.listen((event) {
  **my code
});

[FZambia]

I should use disconnect when it goes to the background and use the connect function again when it goes to the foreground. Is it true?

Yes

Should I cancel all Stream when it goes to the background and recreate them when it goes to the foreground?

I think you don't need to do this.

[furkanKotic]

Thank you for your help.