BlocProvider inside initstate that receive value from blocbuilder - flutter

Question

i curious how to call BlocProvider inside inistate that retrieve value from BlocBuilder.
usually inside widget i call Blocbuilder to retrieve a string and then the string value i can pass to Bloc provider so will run fetch data.
i try in inistate like below :
void initState(){
super.initState();
BlocBuilder<idoutletbloc,String>(
builder: (context,idoutlet)=>BlocProvider.of<tablelistbloc>(context).add(idoutlet);
);}
but it said "The return is void isn't Widget", as defined by anonymous closure.
how i can retrieve a value from idoutletbloc and then i can add BlocProvider.of(context).add(idoutlet) ??
i can't find it anywhere
here my bloc code
this is my bloc string value
class idoutletbloc extends Bloc<String, String>{
#override
String get initialState => '';
#override
Stream<String> mapEventToState(String idoutlet) async* {
yield idoutlet.toString();
}
}
my bloc that fetch data that need to receive a value
class viewtableactivebloc extends Bloc<String, List<ViewTableActives>>{
#override
List<ViewTableActives> get initialState => [];
#override
Stream<List<ViewTableActives>> mapEventToState(String event) async*{
List<ViewTableActives> viewtableactive =[];
try{
final response = await http.post(BaseUrl.ViewTableActive,
body: {
"ID_Outlet": event,
});
final data = jsonDecode(response.body);
if (data.length != 0) {
print("----------START Print View Table Active----------");
data.forEach((api) {
viewtableactive.add(
ViewTableActives(
api['ID_Transactions'],
api['ID_Customer'],
)
);
print("Print View Table Actibe : "
"ID_Transactions : "+api['ID_Transactions']+", "
"ID_Customer : "+api['ID_Customer']+", "
);
});
print("----------END Print View Table Active----------");
print("viewtableactivebloc : sukses");
} else {
viewtableactive =[];
print('data kosong');
}
}
catch(e){
print("Error ViewTableActive :");
print(e);
}
yield viewtableactive;
}}

Answer 1

You can access the current state of the bloc like:
BlocProvider.of(context).state;
or via the shorthand
context.bloc().state;