位置列表 Bloc 不扩展 Bloc<dynamic, LocationListState>

Question

我目前正在将我的代码重构为 bloc 模式，并为屏幕创建了一个 bloc，该屏幕从资产中的 json 文件中获取位置列表。事件是获取，状态是初始、加载和加载。

在我的 UI 屏幕上，我想使用 BlocBuilder，但是当我使用 BlocBuilder 小部件时，出现错误：

LocationListBloc 不扩展 Bloc，LocationListBloc 下划线

我的代码在文件夹中的结构如下

lib/blocs/location_list_bloc
lib/blocs/location_list_event
lib/blocs/location_list_state
lib/blocs/blocs

UI / location_list

location_list_州

import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:gt_project_bloc/blocs/blocs.dart';

class Locations extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return BlocBuilder<LocationListBloc, LocationListState>();
  }
}

import 'package:equatable/equatable.dart';
import 'package:gt_project_bloc/models/models.dart';
import 'package:meta/meta.dart';
import 'package:equatable/equatable.dart';


abstract class LocationListState extends Equatable {
  const LocationListState();

  @override
  List<Object> get props => [];
}

class LocationListinitial extends LocationListState {}

class LocationListLoading extends LocationListState {}

class LocationListLoaded extends LocationListState {
  final List<SavedStations> locationlist;

  LocationListLoaded(this.locationlist) : assert(locationlist != null);
}

location_list_事件


import 'package:equatable/equatable.dart';

abstract class LocationListEvent extends Equatable {
  @override
  List<Object> get props => [];
}

class Fetch extends LocationListEvent {}

location_list_州


import 'package:equatable/equatable.dart';
import 'package:gt_project_bloc/models/models.dart';
import 'package:meta/meta.dart';
import 'package:equatable/equatable.dart';


abstract class LocationListState extends Equatable {
  const LocationListState();

  @override
  List<Object> get props => [];
}

class LocationListinitial extends LocationListState {}

class LocationListLoading extends LocationListState {}

class LocationListLoaded extends LocationListState {
  final List<SavedStations> locationlist;

  LocationListLoaded(this.locationlist) : assert(locationlist != null);
}

Answer 1

我发现了我的问题，我在同一页面上有一个名为 LocationList 的有状态小部件，它混淆了它的状态 LocationListState 与我的 blocs 状态的同名

位置列表 Bloc 不扩展 Bloc<dynamic, LocationListState>

LocationListBloc doesnt extend Bloc<dynamic, LocationListState>

dart

flutter

bloc