// 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 ListTile

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  static const String _title = 'Flutter Code Sample';

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: _title,
      home: Scaffold(
        appBar: AppBar(title: const Text(_title)),
        body: const MyStatelessWidget(),
      ),
    );
  }
}

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

  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({
    Key? key,
    required this.title,
    required this.user,
    required this.viewCount,
  }) : super(key: key);

  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 MyStatelessWidget extends StatelessWidget {
  const MyStatelessWidget({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return 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',
        ),
      ],
    );
  }
}