Pedometer package in flutter doesn't work with some devices - flutter

Question

I used the pedometer package version ^1.2.0 in my flutter app and I noticed that it doesn't work with some devices like Samsung A30 and others, the version I used doesn't need any permissions and it worked on my device OPPO F7 (Used Android 10) so what is the problem?
Here's the code
StreamSubscription<int> _subscription;
Box<int> stepsBox = Hive.box('steps');
int todaySteps;
#override
void initState() {
super.initState();
startListening();
}
#override
void dispose() {
stopListening();
super.dispose();
}
void startListening() {
_pedometer = Pedometer();
_subscription = _pedometer.pedometerStream.listen(
getTodaySteps,
onError: _onError,
onDone: _onDone,
cancelOnError: true,
);
}
void _onDone() => print("Finished pedometer tracking");
void _onError(error) => print("Flutter Pedometer Error: $error");
Future<int> getTodaySteps(int value) async {
print(value);
int savedStepsCountKey = 999999;
int savedStepsCount = stepsBox.get(savedStepsCountKey, defaultValue: 0);
int todayDayNo = Jiffy(DateTime.now()).dayOfYear;
if (value < savedStepsCount) {
// Upon device reboot, pedometer resets. When this happens, the saved counter must be reset as well.
savedStepsCount = 0;
// persist this value using a package of your choice here
stepsBox.put(savedStepsCountKey, savedStepsCount);
}
// load the last day saved using a package of your choice here
int lastDaySavedKey = 888888;
int lastDaySaved = stepsBox.get(lastDaySavedKey, defaultValue: 0);
// When the day changes, reset the daily steps count
// and Update the last day saved as the day changes.
if (lastDaySaved < todayDayNo) {
lastDaySaved = todayDayNo;
savedStepsCount = value;
stepsBox
..put(lastDaySavedKey, lastDaySaved)
..put(savedStepsCountKey, savedStepsCount);
}
setState(() {
todaySteps = value - savedStepsCount;
});
stepsBox.put(todayDayNo, todaySteps);
return todaySteps; // this is your daily steps value.
}
void stopListening() {
_subscription.cancel();
}

Answer 1

check for permission.
await Permission.activityRecognition.request().isGranted
this will check for permission and request permission if the permission is not allowed
if (await Permission.activityRecognition.request().isGranted) {
_pedestrianStatusStream = Pedometer.pedestrianStatusStream;
_pedestrianStatusStream
.listen(onPedestrianStatusChanged)
.onError(onPedestrianStatusError);
_stepCountStream = Pedometer.stepCountStream;
_stepCountStream.listen(onStepCount).onError(onStepCountError);
}else{
}
if (!mounted) return;

Answer 2

I think that in this case it would be better to ask the question directly in the lib repository, open an issue with your problem.
https://github.com/cph-cachet/flutter-plugins/issues