Refreshes the page when Slider values ​change - Flutter, BloC - firebase

Question

I'm new to Flutter, I started making a Slider through bloc and writing data to the fireStore, but I ran into a problem - when I change the value in the Slider, the page refreshes and freezes at the Loading stage, this is profile_screen. How can I fix the problem so that the page is not updated in real time, but only by clicking on the Save button?
profile_screen
double _currentSliderValue = 1;
#override
Widget build(BuildContext context) {
// final ProfileBloc infoBloc = context.read<ProfileBloc>();
ProfileCubit cubit = ProfileCubit.get(context);
return Scaffold(
body: Container(
child: Padding(
padding: const EdgeInsets.all(50),
child: BlocBuilder<ProfileCubit, ProfileState>(
builder: (context, state) {
if (state is ProfileInitial) {
return const Center(
child: Text('No Data'),
);
}
if (state is ProfileLoadingState) {
return CircularProgressIndicator();
}
if (state is ProfileLoadedState) {
return FutureBuilder<DocumentSnapshot>(
future: cubit.getInfo(),
builder: (BuildContext context,
AsyncSnapshot<DocumentSnapshot> snapshot) {
if (snapshot.hasError) {
return Text("Something went wrong");
}
if (snapshot.hasData && !snapshot.data!.exists) {
return _userNoInfo(cubit);
}
if (snapshot.connectionState == ConnectionState.done) {
Map<String, dynamic> data =
snapshot.data!.data() as Map<String, dynamic>;
return _userInfo(data, cubit);
}
return Text('Loading');
},
);
}
if (state is ProfileErrorState) {
return Center(
child: Text(state.error.toString()),
);
}
return Container();
})),
));
}
Widget _userInfo(data, ProfileCubit cubit) {
return Column(mainAxisAlignment: MainAxisAlignment.center, children: [
Form(
key: _formKeyTwo,
child: Column(children: [
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
SizedBox(
width: MediaQuery.of(context).size.width * 0.2,
child: Slider(
value: _currentSliderValue,
max: 100,
divisions: 100,
label: _currentSliderValue.toString(),
onChanged: (value) {
setState(() {
_currentSliderValue = value;
});
}),
),
SizedBox(width: 100),
_cardData(),
],
),
const SizedBox(height: 50.0),
Center(
child: SizedBox(
width: MediaQuery.of(context).size.width * 0.2,
child: ElevatedButton(
onPressed: () {
cubit.addAndUpdateInfo(
_bisNameContr.text,
_bisAddressContr.text,
_contactNameContr.text,
_contactEmailContr.text,
_phoneNumberContr.text,
_progNameContr.text,
_currentSliderValue.toString());
profile_cubit
class ProfileCubit extends Cubit<ProfileState> {
final Database _firestoreRepo;
ProfileCubit(this._firestoreRepo) : super(ProfileInitial()) {
getInfo();
}
static ProfileCubit get(context) => BlocProvider.of(context);
Future<DocumentSnapshot<Object?>> getInfo() {
try {
emit(ProfileLoadingState());
final Future<DocumentSnapshot<Object?>> infoData =
_firestoreRepo.getData();
emit(ProfileLoadedState(infoData));
return infoData;
} catch (e) {
emit(ProfileErrorState(e.toString()));
throw Exception(e);
}
}
Future<void> addAndUpdateInfo(
final String bisName,
final String bisAddress,
final String contactName,
final String contactEmail,
final String phoneNumber,
final String progName,
final String progYears,
) async {
await _firestoreRepo.addAndUpdateInfo(bisName, bisAddress, contactName,
contactEmail, phoneNumber, progName, progYears);
}
}
cubit_state
abstract class ProfileState extends Equatable {
const ProfileState();
#override
List<Object> get props => [];
}
class ProfileInitial extends ProfileState {}
class ProfileLoadingState extends ProfileState {}
class ProfileLoadedState extends ProfileState {
final Future<DocumentSnapshot<Object?>> dataInfo;
const ProfileLoadedState(this.dataInfo);
}
class ProfileErrorState extends ProfileState {
final String error;
const ProfileErrorState(this.error);
#override
List<Object> get props => [error];
}

Answer 1

If you don't want to build everytime, you can use buildWhen which is available inside BlocBuilder. if the value is true, it will rebuild everytime and if it's false, it will never rebuild. So you can keep a condition over there based on your requirements.