Question

我目前正在将代码重构为块模式，并为屏幕创建了一个块，该屏幕从资产中的json文件获取位置列表。事件为获取，状态为初始，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 ，其中LocationListBloc用下划线标出

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_state

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_event


import 'package:equatable/equatable.dart';

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

class Fetch extends LocationListEvent {}

location_list_state


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，它将其StateLocationListState与我的状态组的同名混淆了

LocationListBloc不扩展Bloc <dynamic，LocationListState>

1 个答案: