🎮Cubit List<Map<String, dynamic>>

coffee_screen.dart

ui

import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:flutter_lessons_in_the_evening/coffee_shop/cubit/coffee_cubit.dart';
import 'package:flutter_lessons_in_the_evening/coffee_shop/widget/app_bar_widget.dart';
import 'package:flutter_lessons_in_the_evening/coffee_shop/widget/product_card.dart';
import 'package:flutter_lessons_in_the_evening/coffee_shop/widget/text_form_filed_widget.dart';

class CoffeeScreen extends StatefulWidget {
  const CoffeeScreen({super.key});

  @override
  State<CoffeeScreen> createState() => _CoffeeScreenState();
}

class _CoffeeScreenState extends State<CoffeeScreen> {
  final TextEditingController controller = TextEditingController();

  // @override
  // void initState() {
  //   // TODO: implement initState
  //   getAllProducts();
  //   super.initState();
  // }

  @override
  void dispose() {
    // TODO: implement dispose
    super.dispose();
    controller.dispose();
  }

  void getAllProducts() {
    context.read<CoffeeCubit>().getAllProducts();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: PreferredSize(
        preferredSize: Size.fromHeight(100),
        child: AppBarWidget(count: 0),
      ),
      body: Padding(
        padding: const EdgeInsets.symmetric(horizontal: 10),
        child: BlocBuilder<CoffeeCubit, CoffeeState>(
          builder: (context, state) {
            return switch (state) {
              CoffeeInitial() => ElevatedButton(
                onPressed: () {
                  getAllProducts();
                },
                child: Text('Получить данные'),
              ),
              CoffeeLoading() => Center(
                child: CircularProgressIndicator(),
              ),
              CoffeeError(error: String error) => Center(
                child: Text(error),
              ),
              CoffeeSuccess(data: List<Map<String, dynamic>> data) =>
                SingleChildScrollView(
                  child: Column(
                    children: [
                      TextFormFiledWidget(controller: controller),
                      GridView.builder(
                        shrinkWrap: true,
                        itemCount: data.length,
                        physics: NeverScrollableScrollPhysics(),
                        gridDelegate:
                            SliverGridDelegateWithFixedCrossAxisCount(
                              crossAxisCount: 2,
                              mainAxisSpacing: 10,
                              crossAxisSpacing: 10,
                              childAspectRatio: 0.65,
                            ),
                        itemBuilder: (context, index) {
                          final newData = data[index];
                          return ProductCard(
                            like: newData['isLike'],
                            image: newData['image'],
                            title: newData['title'],
                            price: newData['price'],
                            count: newData['count'],
                            likePressed: () {},
                            remove: () {},
                            add: () {},
                          );
                        },
                      ),
                    ],
                  ),
                ),
            };
          },
        ),
      ),
    );
  }
}

Second Tab

app_bar_widget.dart

import 'package:flutter/material.dart';

class AppBarWidget extends StatelessWidget {
  final int count;
  const AppBarWidget({super.key, required this.count});

  @override
  Widget build(BuildContext context) {
    return AppBar(
      leadingWidth: 200,
      toolbarHeight: 100,
      leading: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
          Row(
            mainAxisSize: MainAxisSize.min,
            children: [
              Image.asset(
                'assets/sprite.png',
              ),
              Text('Coffee menu'),
            ],
          ),
          Text('Hello'),
        ],
      ),
      actions: [
        IconButton(
          onPressed: () {},
          icon: Badge.count(
            backgroundColor: Colors.green,
            count: count,
            child: Icon(Icons.shopping_cart),
          ),
        ),
      ],
    );
  }
}

product_card.dart

text_form_filed

coffee_cubit.dart

cubit

import 'package:bloc/bloc.dart';
import 'package:equatable/equatable.dart';
import 'package:flutter/material.dart';
import 'package:flutter_lessons_in_the_evening/coffee_shop/repository/coffee_repository.dart';

part 'coffee_state.dart';

class CoffeeCubit extends Cubit<CoffeeState> {
  final CoffeeRepository _coffeeRepository;

  CoffeeCubit({required CoffeeRepository coffeeRepository}) : _coffeeRepository = coffeeRepository,

      super(CoffeeInitial());

  //
  void getAllProducts() async{
    emit(CoffeeLoading());




    try {
      final newData = await _coffeeRepository.getAllProducts();

      emit(CoffeeSuccess(data: newData));

    } catch (e) {
      emit(CoffeeError(error: 'произошло ошибка $e'));

    }
  }
}

coffee_state.dart

coffee_repository.dart

repository

abstract class CoffeeRepository {
  Future<List<Map<String, dynamic>>> getAllProducts();

  Future<List<Map<String, dynamic>>> toggleLike();

  Future<List<Map<String, dynamic>>> count();
  // Future<"Молоко"> buyMilk({ int? money});
  // Future<void> trashAway({});
  // Future<void> register({required String email});
}

class CoffeeRepositoryImpl implements CoffeeRepository {
  final List<Map<String, dynamic>> _db = [
    {
      'isLike': false,
      'image': 'assets/visa.png',
      'title': 'visa',
      'price': 200,
      'count': 0,
    },
    {
      'isLike': false,
      'image': 'assets/visa.png',
      'title': 'visa',
      'price': 200,
      'count': 0,
    },
    {
      'isLike': false,
      'image': 'assets/visa.png',
      'title': 'visa',
      'price': 200,
      'count': 0,
    },
    {
      'isLike': false,
      'image': 'assets/visa.png',
      'title': 'visa',
      'price': 200,
      'count': 0,
    },
    {
      'isLike': false,
      'image': 'assets/visa.png',
      'title': 'visa',
      'price': 200,
      'count': 0,
    },
    {
      'isLike': false,
      'image': 'assets/visa.png',
      'title': 'visa',
      'price': 200,
      'count': 0,
    },
  ];

  @override
  Future<List<Map<String, dynamic>>> count() {
    // TODO: implement count
    throw UnimplementedError();
  }

  @override
  Future<List<Map<String, dynamic>>> getAllProducts() async {
    await Future.delayed(Duration(seconds: 1));

    if (_db.isEmpty) {
      throw Exception('Нету данных');
    }

    return List.from(_db);
  }

  @override
  Future<List<Map<String, dynamic>>> toggleLike() {
    // TODO: implement toggleLike
    throw UnimplementedError();
  }
}

Second Tab