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теперь в lab4 анекдоты и мопсы

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allllen4a 2024-10-14 16:24:22 +03:00
parent c71fd1ddf2
commit c2328a5ada
6 changed files with 334 additions and 191 deletions
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200
lib/main.dart
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@ -1,208 +1,26 @@
import 'package:flutter/material.dart';
import 'package:pmd_labs/presentation/home_page/home_page.dart';
void main() {
runApp(MyApp());
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Рецепты',
title: 'Flutter Demo',
debugShowCheckedModeBanner: false,
theme: ThemeData(
scaffoldBackgroundColor: Colors.purple[100],
colorScheme: ColorScheme.fromSeed(seedColor: Colors.orange),
useMaterial3: true,
),
home: RecipeHome(),
home: const MyHomePage(title: 'Анекдоты и мопсы'),
);
}
}
enum Cuisine { Italian, Indian, Chinese, Georgian }
class Recipe {
String name;
Cuisine cuisine;
List<String> ingredients;
String imageUrl;
bool liked;
Recipe({
required this.name,
required this.cuisine,
required this.ingredients,
required this.imageUrl,
this.liked = false,
});
String getDetails() {
return 'Рецепт: $name\nКухня: ${cuisine.toString().split('.').last}\nИнгредиенты: ${ingredients.join(', ')}';
}
}
class RecipeManager<T extends Recipe> {
List<T> _recipes = [];
Future<void> addRecipe(T recipe) async {
await Future.delayed(Duration(seconds: 1));
_recipes.add(recipe);
}
List<T> getAllRecipes() => _recipes;
T? getRecipeAt(int index) {
if (index < _recipes.length) {
return _recipes[index];
}
return null;
}
}
class RecipeHome extends StatefulWidget {
@override
_RecipeHomeState createState() => _RecipeHomeState();
}
class _RecipeHomeState extends State<RecipeHome> {
final RecipeManager<Recipe> _recipeManager = RecipeManager();
final TextEditingController _nameController = TextEditingController();
final TextEditingController _ingredientsController = TextEditingController();
final TextEditingController _imageUrlController = TextEditingController();
Cuisine? _selectedCuisine;
void _addRecipe() {
final name = _nameController.text;
final ingredients = _ingredientsController.text.split(',').map((s) => s.trim()).toList();
final imageUrl = _imageUrlController.text;
if (name.isNotEmpty && ingredients.isNotEmpty && _selectedCuisine != null && imageUrl.isNotEmpty) {
final recipe = Recipe(
name: name,
cuisine: _selectedCuisine!,
ingredients: ingredients,
imageUrl: imageUrl,
);
_recipeManager.addRecipe(recipe).then((_) {
_nameController.clear();
_ingredientsController.clear();
_imageUrlController.clear();
_selectedCuisine = null;
setState(() {});
});
}
}
void _likeRecipe(int index) {
setState(() {
final recipe = _recipeManager.getRecipeAt(index);
if (recipe != null) {
recipe.liked = !recipe.liked;
final message = recipe.liked ? 'Рецепт добавлен в избранное!' : 'Лайк убран!';
ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(message)));
}
});
}
void _showRecipeDetail(Recipe recipe) {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => RecipeDetail(recipe: recipe),
),
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text('Создание Рецептов')),
body: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
children: [
TextField(
controller: _nameController,
decoration: InputDecoration(labelText: 'Название рецепта'),
),
DropdownButton<Cuisine>(
hint: Text('Выберите кухню'),
value: _selectedCuisine,
onChanged: (Cuisine? newValue) {
setState(() {
_selectedCuisine = newValue;
});
},
items: Cuisine.values.map((Cuisine cuisine) {
return DropdownMenuItem<Cuisine>(
value: cuisine,
child: Text(cuisine.toString().split('.').last),
);
}).toList(),
),
TextField(
controller: _ingredientsController,
decoration: InputDecoration(labelText: 'Ингредиенты (через запятую)'),
),
TextField(
controller: _imageUrlController,
decoration: InputDecoration(labelText: 'URL изображения'),
),
SizedBox(height: 20),
ElevatedButton(
onPressed: _addRecipe,
child: Text('Добавить Рецепт'),
),
SizedBox(height: 20),
Expanded(
child: ListView.builder(
itemCount: _recipeManager.getAllRecipes().length,
itemBuilder: (context, index) {
final recipe = _recipeManager.getRecipeAt(index);
return ListTile(
leading: recipe != null && recipe.imageUrl.isNotEmpty
? Image.network(recipe.imageUrl, width: 50, height: 50, fit: BoxFit.cover)
: null,
title: Text(recipe?.name ?? 'Ошибка'),
subtitle: Text(recipe?.getDetails() ?? ''),
trailing: IconButton(
icon: Icon(recipe?.liked == true ? Icons.favorite : Icons.favorite_border),
onPressed: () => _likeRecipe(index),
),
onTap: () {
if (recipe != null) {
_showRecipeDetail(recipe);
}
},
);
},
),
),
],
),
),
);
}
}
class RecipeDetail extends StatelessWidget {
final Recipe recipe;
RecipeDetail({required this.recipe});
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text(recipe.name)),
body: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Image.network(recipe.imageUrl),
SizedBox(height: 20),
Text(recipe.getDetails(), style: TextStyle(fontSize: 18)),
],
),
),
);
}
}

58
lib/presentation/details_page/details_page.dart Normal file
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@ -0,0 +1,58 @@
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:pmd_labs/domain/models/card.dart';
class DetailsPage extends StatelessWidget {
final CardData data;
const DetailsPage(this.data, {super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(),
body: Padding(
padding: const EdgeInsets.symmetric(horizontal: 16.0),
child: Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// Изображение слева
Padding(
padding: const EdgeInsets.only(right: 16.0), // Отступ справа от изображения
child: ClipRRect(
borderRadius: BorderRadius.circular(10.0),
child: Image.network(
data.imageUrl ?? '',
fit: BoxFit.cover,
width: 150.0, // Ширина изображения
height: 150.0, // Высота изображения
),
),
),
// Текст справа от изображения
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.only(bottom: 4.0),
child: Text(
data.text,
style: Theme.of(context).textTheme.headlineLarge,
),
),
Text(
data.descriptionText,
style: Theme.of(context).textTheme.bodyLarge?.copyWith(
fontSize: 25.0,
),
),
],
),
),
],
),
),
);
}
}

131
lib/presentation/home_page/card.dart Normal file
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@ -0,0 +1,131 @@
part of 'home_page.dart';
typedef OnLikeCallback = void Function(String title, bool isLiked)?;
class _Card extends StatefulWidget {
final String text;
final String descriptionText;
final IconData icon;
final String? imageUrl;
final OnLikeCallback onLike;
final VoidCallback? onTap;
const _Card(
this.text, {
this.icon = Icons.catching_pokemon,
required this.descriptionText,
this.imageUrl,
this.onLike,
this.onTap,
});
factory _Card.fromData(
CardData data, {
OnLikeCallback onLike,
VoidCallback? onTap,
}) =>
_Card(
data.text,
descriptionText: data.descriptionText,
icon: data.icon,
imageUrl: data.imageUrl,
onLike: onLike,
onTap: onTap,
);
@override
State<_Card> createState() => _CardState();
}
class _CardState extends State<_Card> {
bool isLiked = false;
@override
Widget build(BuildContext context) {
return GestureDetector(
onTap: widget.onTap,
child: Container(
margin: const EdgeInsets.all(16),
constraints: const BoxConstraints(minHeight: 140),
decoration: BoxDecoration(
color: Colors.white70,
borderRadius: BorderRadius.circular(20),
border: Border.all(color: Colors.grey.shade200),
boxShadow: [
BoxShadow(
color: Colors.grey.withOpacity(.5),
spreadRadius: 4,
offset: const Offset(0, 5),
blurRadius: 8,
),
],
),
child: Row(
children: [
ClipRRect(
borderRadius: BorderRadius.circular(10),
child: SizedBox(
height: 140,
width: 140,
child: Image.network(
widget.imageUrl ?? '',
fit: BoxFit.cover,
errorBuilder: (_, __, ___) => const Placeholder(),
),
),
),
Expanded(
child: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
widget.text,
style: Theme
.of(context)
.textTheme
.bodyLarge
?.copyWith(
fontSize: 25.0,
),
),
],
),
),
),
Align(
alignment: Alignment.topRight,
child: Padding(
padding: const EdgeInsets.only(right: 16.0),
child: GestureDetector(
onTap: () {
setState(() {
isLiked = !isLiked;
});
widget.onLike?.call(widget.text, isLiked);
},
child: AnimatedSwitcher(
duration: const Duration(milliseconds: 300),
child: isLiked
? const Icon(
Icons.favorite,
color: Colors.redAccent,
key: ValueKey<int>(0),
)
: const Icon(
Icons.favorite_border,
key: ValueKey<int>(1),
),
),
),
),
),
],
),
),
);
}
}

106
lib/presentation/home_page/home_page.dart Normal file
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@ -0,0 +1,106 @@
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:pmd_labs/domain/models/card.dart';
import '../details_page/details_page.dart';
part 'card.dart';
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final Color _color = Colors.brown.shade300;
@override
void initState() {
super.initState();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: _color,
title: Text(widget.title),
),
body: const Body(),
);
}
}
class Body extends StatelessWidget {
const Body({super.key});
@override
Widget build(BuildContext context) {
final data = [
CardData(
'Анекдот №1',
descriptionText: '— Итак, Сара, вот ваша диета: одно яблоко, одно вареное яйцо, нежирный творог, зелень\n'
'— Ясно, доктор, но это до или после еды?',
icon: Icons.favorite,
imageUrl: 'https://i.pinimg.com/474x/97/ee/af/97eeaffa3171b0a53bb4161bfc9e3756.jpg',
),
CardData(
'Анекдот №2',
descriptionText: '– Яна Моисеевна, а что вам муженек на день рождения подарил?\n'
'– Вон видите феррари за окном стоит?\n'
'– Не может быть!\n'
'– Вот точно такого же цвета шарфик.\n',
icon: Icons.favorite,
imageUrl:
'https://i.pinimg.com/474x/8c/4f/40/8c4f4093ab3ff9ddb1d8880a94b4d586.jpg',
),
CardData(
'Анекдот №3',
descriptionText: 'Чем дольше звонят в дверь, тем больше Рабиновича нет дома.',
icon: Icons.favorite,
imageUrl:
'https://i.pinimg.com/474x/3a/1f/3c/3a1f3ca4a57ff8a16882093c2f278922.jpg',
),
];
return Center(
child: SingleChildScrollView(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: data.map((data) {
return _Card.fromData(
data,
onLike: (String title, bool isLiked) =>
_showSnackBar(context, title, isLiked),
onTap: () => _navToDetails(context, data),
);
}).toList(),
),
),
);
}
void _navToDetails(BuildContext context, CardData data){
Navigator.push(
context,
CupertinoPageRoute(builder: (context) => DetailsPage(data)),
);
}
void _showSnackBar(BuildContext context, String title, bool isLiked) {
WidgetsBinding.instance.addPostFrameCallback((_) {
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content: Text(
'Вам ${isLiked ? 'понравился' : 'больше не нравится'} $title',
style: Theme.of(context).textTheme.bodyLarge,
),
backgroundColor: Colors.brown.shade400,
duration: const Duration(seconds: 1),
));
});
}
}

24
pubspec.lock
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@ -75,6 +75,22 @@ packages:
description: flutter
source: sdk
version: "0.0.0"
http:
dependency: "direct main"
description:
name: http
sha256: "5895291c13fa8a3bd82e76d5627f69e0d85ca6a30dcac95c4ea19a5d555879c2"
url: "https://pub.dev"
source: hosted
version: "0.13.6"
http_parser:
dependency: transitive
description:
name: http_parser
sha256: "2aa08ce0341cc9b354a498388e30986515406668dbcc4f7c950c3e715496693b"
url: "https://pub.dev"
source: hosted
version: "4.0.2"
leak_tracker:
dependency: transitive
description:
@ -192,6 +208,14 @@ packages:
url: "https://pub.dev"
source: hosted
version: "0.7.2"
typed_data:
dependency: transitive
description:
name: typed_data
sha256: facc8d6582f16042dd49f2463ff1bd6e2c9ef9f3d5da3d9b087e244a7b564b3c
url: "https://pub.dev"
source: hosted
version: "1.3.2"
vector_math:
dependency: transitive
description:

6
pubspec.yaml
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@ -30,6 +30,7 @@ environment:
dependencies:
flutter:
sdk: flutter
http: ^0.13.3
# The following adds the Cupertino Icons font to your application.
@ -40,6 +41,11 @@ dev_dependencies:
flutter_test:
sdk: flutter
# The "flutter_lints" package below contains a set of recommended lints to
# encourage good coding practices. The lint set provided by the package is
# activated in the `analysis_options.yaml` file located at the root of your