I have functions that use riverpod in Flutter project.

Future<void> _deleteChatRoom() async {
    try {
      await ref.read(chatRepo).deleteChatRoom(_roomId);
    } catch (e) {
      // ignore: avoid_print
      print("_deleteChatRoom -> $e");
    }
  }

  Future<void> _updateChatTime() async {
    Duration duration = DateTime.now().difference(_chatStartTime);
    int chatTime = duration.inSeconds;

    await ref.read(chatRepo).updateChatTime(_roomId, chatTime);
  }

And when user exit this Widget, I need to run these functions.

So in dispose() method, I run them before super.dispose().

@override
  void dispose() {
    if (chatList.isEmpty) {
      _deleteChatRoom();
    } else {
      _updateChatTime();
    }

    _messageController.dispose();
    _scrollController.dispose();
    _answerTypingController.close();
    _animationController.dispose();

    _speechToText.stop();
    _flutterTts.stop();

    super.dispose();
  }

But still I get error:
Bad state: Cannot use "ref" after the widget was disposed.

I tried to make super.dispose() to be run after 2 seconds.

 Future.delayed(const Duration(seconds: 2), () {
      super.dispose();
    });

But it crashes in dispose() part.

And also I can’t make dispose() to be async/ await.

How to make this work?