How to know if the app was lunched with the accpet click in notification

[hatemragab]

Hello thanks for your great effort
i have question i have tried alot before i open this
How to know if the app was lunched with the accpet click in notification
And if user decline the call in the app was terminated i speak about the android version only
i lunch this from the background handler for the firebase

@pragma('vm:entry-point')
Future<void> vFirebaseMessagingBackgroundHandler(RemoteMessage message) async {}

The call appears good but when i click to accept or reject i need to perform some action in background
espically for the decline i need to call the api to stop the call and mark it as rejected
Here what iam doing
in the vFirebaseMessagingBackgroundHandler function
init first

  Future<void> initCallKeep() async {
    final config = CallKeepConfig(
      appName: 'CallKeep',
      // Other plugin configurations
      android: CallKeepAndroidConfig(

          // Android configuration
          ),
      ios: CallKeepIosConfig(
          // iOS configuration
          ),
      // Headers if needed
      headers: <String, dynamic>{'apiKey': 'Abc@123!', 'platform': 'flutter'},
    );
    CallKeep.instance.configure(config);
    setEventHandler();
  }

and then

  Future<void> setEventHandler() async {
  CallKeep.instance.handler = callkeep.CallEventHandler(
    onCallStarted: (event) {
      print('call started: ${event.toMap()}');
    },
    onCallEnded: (event) {
      print('call ended: ${event.toMap()}');
    },
    onCallAccepted: (event) async {
      //try to set some string in key to print it in next app lunch 
      await VAppPref.setStringKey(
        "onCallAcceptedxx",
        "jsonEncode(event.toMap())",
      );
      await Future.delayed(Duration(seconds: 4));
      VChatController.I.navigatorKey.currentContext!.toPage(Scaffold());
    },
    onCallDeclined: (event) async {
      print('call declined: ${event.toMap()}');
    },
  );
}

• try to set some string in key to print it in next app lunch
• put it prints null
  show call by this

 final data = callkeep.CallEvent(
    uuid: "s",
    callerName: 'Test User',
    handle: '0123456789',
    hasVideo: false,
    duration: 30000,
    extra: <String, dynamic>{'userId': '1a2b3c4d'},
  );

  await CallKeep.instance.displayIncomingCall(data);