// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Flutter code sample for custom list items.

import 'package:flutter/material.dart';

void main() => runApp(const CustomListItemApp());

class CustomListItemApp extends StatelessWidget {
  const CustomListItemApp({super.key});

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      home: CustomListItemExample(),
    );
  }
}

class CustomListItem extends StatelessWidget {
  const CustomListItem({
    super.key,
    required this.thumbnail,
    required this.title,
    required this.user,
    required this.viewCount,
  });

  final Widget thumbnail;
  final String title;
  final String user;
  final int viewCount;

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 5.0),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: <Widget>[
          Expanded(
            flex: 2,
            child: thumbnail,
          ),
          Expanded(
            flex: 3,
            child: _VideoDescription(
              title: title,
              user: user,
              viewCount: viewCount,
            ),
          ),
          const Icon(
            Icons.more_vert,
            size: 16.0,
          ),
        ],
      ),
    );
  }
}

class _VideoDescription extends StatelessWidget {
  const _VideoDescription({
    required this.title,
    required this.user,
    required this.viewCount,
  });

  final String title;
  final String user;
  final int viewCount;

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.fromLTRB(5.0, 0.0, 0.0, 0.0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: <Widget>[
          Text(
            title,
            style: const TextStyle(
              fontWeight: FontWeight.w500,
              fontSize: 14.0,
            ),
          ),
          const Padding(padding: EdgeInsets.symmetric(vertical: 2.0)),
          Text(
            user,
            style: const TextStyle(fontSize: 10.0),
          ),
          const Padding(padding: EdgeInsets.symmetric(vertical: 1.0)),
          Text(
            '$viewCount views',
            style: const TextStyle(fontSize: 10.0),
          ),
        ],
      ),
    );
  }
}

class CustomListItemExample extends StatelessWidget {
  const CustomListItemExample({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Custom List Item Sample')),
      body: ListView(
        padding: const EdgeInsets.all(8.0),
        itemExtent: 106.0,
        children: <CustomListItem>[
          CustomListItem(
            user: 'Flutter',
            viewCount: 999000,
            thumbnail: Container(
              decoration: const BoxDecoration(color: Colors.blue),
            ),
            title: 'The Flutter YouTube Channel',
          ),
          CustomListItem(
            user: 'Dash',
            viewCount: 884000,
            thumbnail: Container(
              decoration: const BoxDecoration(color: Colors.yellow),
            ),
            title: 'Announcing Flutter 1.0',
          ),
        ],
      ),
    );
  }
}