bloc Questions

Flutter – Bloc not triggering [builder] when emit the same state with different attributes, using equatable and props

August 10, 2024
Abdeljalil Bouchfar
2 Answers

// reports_bloc.dart part 'reports_event.dart'; part 'reports_state.dart'; class ReportsBloc extends Bloc<ReportsEvent, ReportsState> { final ReportsRepository _reportsRepository; ReportsBloc(this._reportsRepository) : super(ReportsInitial()) { on<ReportsListRequested>(_OnReportsListRequested); on<ReportSubmitted>(_OnReportAddRequested); on<ReportMessageArrived>(_OnReportMessageArrived); on<ReportMessageSubmitted>(_OnReportMessageSubmitted); } void _OnReportMessageSubmitted( ReportMessageSubmitted event, Emitter<ReportsState> emit, ) async { // the state in this point is…

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Flutter – Is it bad practice to have a cubit listen to a StreamController?

August 6, 2024
Max
2 Answers

We have a data repository in the backend which is hooked up to a realtime supabase table. Everytime there are certain changes we are listening for, the data repository is notifying our Cubit of the changes: /// Stream controller for…

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flutter bloc – infinite scrolling – Listview scroll to top when new data added to state

July 28, 2024
Joyal
2 Answers

I am trying to implement an infinite scroll list view, My data loads to liveView but everytime new data comes, listview scrolls to top, I want to avoid scroll to top when new data comes in import 'package:bloc_infinite_scroll/bloc/user_bloc.dart'; import 'package:bloc_infinite_scroll/bloc/user_event.dart';…

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Flutter – Missing Statechange in BlocListener (Cubit, initial Load)

July 13, 2024
soumas
2 Answers

I'm refactoring some of my blocs down to cubits and I'm struggling with an unexpected behavior. Widget @override Widget build(BuildContext context) { return BlocProvider( create: (context) => injector.get<DocumentListCubit>()..load(), child: BlocConsumer<DocumentListCubit, DocumentListState2>( listener: (context, state) { context.read<GlobalBusyIndicatorCubit>().busy = state.phase == DocumentListState2Enum.loading;…

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Flutter – How to pass a BLOC to a class and use it inside it

June 10, 2024
AWSOME
2 Answers

I am a new developer in FLUTTER. I have a class in which I want to receive in CTR an instance of BLOC. In addition, in the class itself I want to use STATES from the BLOC and listen to…

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Flutter – Navigator.pushReplacement after next screen still has back button, the new screen overrides on last screen

I want to navigate to next screen then do not back to any screen, but when I use Navigator.pushReplacement my app has back button. I mean, arrow back key still work. I want to go to next screen totally, and…

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Flutter bloc – How can I use BlocBuilder?

April 26, 2024
Yong
2 Answers

I'm a Flutter Beginer and about to use Bloc. but this error message comes up and I tried to use 'extends StateStreamable<CalculatorEvent>' or 'implements' but it doesn't work. please help me to solve this error. Thank you. 'CalculatorBloc' doesn't conform…

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Flutter – Bloc, nested models and states with multiple blocs. Data inconsistency

April 23, 2024
Coder
2 Answers

Creating a workout app in flutter. The models look like this, class Workout extends Equatable { String name; final String description; final String type; final int? id; List<Exercise> exercises; } class Exercise extends Equatable { String name; final String description;…

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Flutter – What is the difference between BlocProvider and RepositoryProvider?

April 20, 2024
Matt
2 Answers

I am new to bloc concept. I am trying to get a good understanding on blocprovider and repositoryprovider or the difference between the two. I have been reading blogs but nothing gives a good concrete difference between the two with…

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Flutter – How to divide event stream effectively with Cubit

April 18, 2024
ScottishTapWater
2 Answers

I'm a fairly experienced C# dev trying to get my head around Flutter's cubit functionality. I have an event stream from Flutter Blue which calls a method on my controlling class every time the device emits an update on a…

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