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Merge pull request 'lab4' (#3) from lab4 into main

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Reviewed-on: #3
This commit is contained in:
Никита Потапов 2024-11-26 16:53:36 +04:00
commit 494019359e
5 changed files with 286 additions and 174 deletions
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8
lib/domain/card.dart Normal file
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@ -0,0 +1,8 @@
class CardPostData {
final String name;
final String description;
final String? imageUrl;
final bool isLiked;
const CardPostData(this.name, this.description, this.imageUrl, this.isLiked);
}

178
lib/main.dart
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@ -1,4 +1,5 @@
import 'package:flutter/material.dart'; import 'package:flutter/material.dart';
import 'package:pmu/presentation/home_page/home_page.dart';
void main() { void main() {
runApp(const MyApp()); runApp(const MyApp());
@ -9,180 +10,9 @@ class MyApp extends StatelessWidget {
@override @override
Widget build(BuildContext context) { Widget build(BuildContext context) {
return MaterialApp( return const MaterialApp(
title: 'Flutter Demo', title: 'Meets',
theme: ThemeData( home: MyHomePage(title: 'Знакомства'),
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true,
),
home: const MyHomePage(title: 'Знакомства'),
); );
} }
} }
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
title: Text(widget.title),
),
body: const MyWidget(),
);
}
}
class MyWidget extends StatelessWidget {
const MyWidget({super.key});
@override
Widget build(BuildContext context) {
final data = [
const _CardPostData(
"Евгения",
"Люблю программирование и кататься на скейте",
"https://avatar.iran.liara.run/public/girl",
true),
const _CardPostData("Алекс", "Junior Flutter Engineer",
"https://avatar.iran.liara.run/public/36", false),
const _CardPostData(
"Станислав",
"Нет ничего приятнее прогулки на природе!",
"https://avatar.iran.liara.run/public/boy",
true),
const _CardPostData("Вероника", "В свободное время хожу на уроки вокала",
"https://avatar.iran.liara.run/public/93", false),
];
return Center(
child: SingleChildScrollView(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: data.map((e) => _CardPost.fromData(e)).toList(),
)));
}
}
class _CardPost extends StatelessWidget {
final String description;
final String? imageUrl;
final bool isLiked;
final String name;
const _CardPost(this.name, this.description, this.imageUrl, this.isLiked);
factory _CardPost.fromData(_CardPostData data) =>
_CardPost(data.name, data.description, data.imageUrl, data.isLiked);
@override
Widget build(BuildContext context) {
return Container(
margin: const EdgeInsets.all(10),
padding: const EdgeInsets.all(10),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(10),
color: Colors.blue,
border: Border.all(
color: Colors.blue,
width: 0.5,
),
boxShadow: const [
BoxShadow(
color: Colors.black12,
offset: Offset(
0.0,
5.0,
),
blurRadius: 4.0,
spreadRadius: 1.0,
),
],
),
child: Column(
children: [
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Flexible(
child: Text(
name,
style: const TextStyle(
color: Colors.white,
fontSize: 30,
),
),
),
],
),
Padding(
padding: const EdgeInsets.only(top: 6.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Flexible(
child: Text(
description,
textAlign: TextAlign.center,
style: const TextStyle(
color: Colors.white,
fontSize: 24,
),
),
),
],
),
),
if (imageUrl != null)
Padding(
padding: const EdgeInsets.all(8.0),
child: Image.network(imageUrl!,
height: 500, width: double.infinity, fit: BoxFit.fitWidth),
),
if (isLiked)
const Padding(
padding: EdgeInsets.all(4.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.favorite, color: Colors.red, size: 80),
],
),
)
else
const Padding(
padding: EdgeInsets.all(4.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.favorite_border, color: Colors.red, size: 80),
],
),
)
],
),
);
}
}
class _CardPostData extends StatelessWidget {
final String name;
final String description;
final String? imageUrl;
final bool isLiked;
const _CardPostData(this.name, this.description, this.imageUrl, this.isLiked);
@override
Widget build(BuildContext context) {
return const Placeholder();
}
}

43
lib/presentation/detail_pages/card_detail_page.dart Normal file
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@ -0,0 +1,43 @@
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:pmu/domain/card.dart';
class DetailPage extends StatelessWidget {
final CardPostData data;
const DetailPage(this.data, {super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(),
body: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.only(bottom: 4.0),
child: Image.network(
data.imageUrl ?? '',
fit: BoxFit.cover,
width: double.infinity,
),
),
Padding(
padding: const EdgeInsets.all(4.0),
child: Text(
data.name,
style: const TextStyle(color: Colors.black, fontSize: 30),
),
),
Padding(
padding: const EdgeInsets.all(4.0),
child: Text(
data.description,
style: const TextStyle(color: Colors.black, fontSize: 20),
),
),
],
),
);
}
}

145
lib/presentation/home_page/card.dart Normal file
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@ -0,0 +1,145 @@
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:pmu/domain/card.dart';
typedef OnLikeCallback = void Function(String title, bool isLiked)?;
const double NORMAL_ICON_SCALE = 2.0;
const double SCALED_ICON_SCALE = 2.5;
class CardPost extends StatefulWidget {
final String description;
final String? imageUrl;
final bool isLiked;
final String name;
final OnLikeCallback onLike;
final VoidCallback? onTap;
const CardPost(this.name, this.description, this.imageUrl, this.isLiked,
this.onLike, this.onTap);
factory CardPost.fromData(CardPostData data,
{OnLikeCallback onLike, VoidCallback? onTap}) =>
CardPost(data.name, data.description, data.imageUrl, data.isLiked, onLike,
onTap);
@override
State<CardPost> createState() => _CardPostState();
}
class _CardPostState extends State<CardPost> {
bool isLiked = false;
double iconScale = NORMAL_ICON_SCALE;
@override
Widget build(BuildContext context) {
return GestureDetector(
onTap: widget.onTap,
child: Container(
margin: const EdgeInsets.all(10),
padding: const EdgeInsets.all(10),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(10),
color: Colors.blue,
border: Border.all(
color: Colors.blue,
width: 0.5,
),
boxShadow: const [
BoxShadow(
color: Colors.black12,
offset: Offset(
0.0,
5.0,
),
blurRadius: 4.0,
spreadRadius: 1.0,
),
],
),
child: Column(
children: [
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Flexible(
child: Text(
widget.name,
style: const TextStyle(
color: Colors.white,
fontSize: 30,
),
),
),
],
),
Padding(
padding: const EdgeInsets.only(top: 6.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Flexible(
child: Text(
widget.description,
textAlign: TextAlign.center,
style: const TextStyle(
color: Colors.white,
fontSize: 24,
),
),
),
],
),
),
if (widget.imageUrl != null)
Padding(
padding: const EdgeInsets.all(8.0),
child: Image.network(widget.imageUrl!,
height: 500,
width: double.infinity,
fit: BoxFit.fitWidth),
),
Padding(
padding: const EdgeInsets.all(4.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
GestureDetector(
onTap: () => {
setState(() {
isLiked = !isLiked;
iconScale = SCALED_ICON_SCALE;
Timer(const Duration(milliseconds: 110), () {
setState(() {
iconScale = NORMAL_ICON_SCALE;
});
});
widget.onLike?.call(widget.name, isLiked);
})
},
child: AnimatedScale(
scale: iconScale,
duration: const Duration(milliseconds: 250),
child: AnimatedSwitcher(
duration: const Duration(milliseconds: 250),
child: isLiked
? const Icon(
Icons.favorite,
color: Colors.red,
key: ValueKey(1),
)
: const Icon(Icons.favorite_border,
color: Colors.black, key: ValueKey(1)))),
),
],
),
)
],
),
));
}
}

86
lib/presentation/home_page/home_page.dart Normal file
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@ -0,0 +1,86 @@
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:pmu/domain/card.dart';
import 'package:pmu/presentation/detail_pages/card_detail_page.dart';
import 'package:pmu/presentation/home_page/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> {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
title: Text(widget.title),
),
body: const Body(),
);
}
}
class Body extends StatelessWidget {
const Body({super.key});
void _navToDetails(BuildContext context, CardPostData data) {
Navigator.push(
context,
CupertinoPageRoute(builder: (context) => DetailPage(data)),
);
}
void _showSnackBar(BuildContext context, String title, bool isLiked) {
WidgetsBinding.instance.addPostFrameCallback((_) {
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content: Text(
'${isLiked ? 'Вы поставили лайк: ' : 'Вы убрали лайк: '} $title',
style: const TextStyle(
color: Colors.black45,
fontSize: 20,
fontWeight: FontWeight.bold
),
),
backgroundColor: isLiked ? Colors.green : Colors.red,
duration: const Duration(seconds: 2),
));
});
}
@override
Widget build(BuildContext context) {
final data = [
const CardPostData(
"Евгения",
"Люблю программирование и кататься на скейте",
"https://avatar.iran.liara.run/public/girl",
false),
const CardPostData("Алекс", "Junior Flutter Engineer",
"https://avatar.iran.liara.run/public/36", false),
const CardPostData(
"Станислав",
"Нет ничего приятнее прогулки на природе!",
"https://avatar.iran.liara.run/public/boy",
false),
const CardPostData("Вероника", "В свободное время хожу на уроки вокала",
"https://avatar.iran.liara.run/public/93", false),
];
return Center(
child: SingleChildScrollView(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: data.map((data) {
return CardPost.fromData(data,
onLike: (String title, bool isLiked) =>
_showSnackBar(context, title, isLiked),
onTap: () => _navToDetails(context, data));
}).toList(),
)));
}
}