import 'package:flutter/material.dart';
import 'package:webview_flutter/webview_flutter.dart';

// Use IP instead of localhost to access local webserver
const _youTubeUrl = 'http://localhost:8080';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'YouTube Video',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'YouTube Video'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  final String title;

  MyHomePage({Key key, this.title}) : super(key: key);

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State {
  WebViewController _controller;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Column(
        children: [
          Expanded(
            child: WebView(
              initialUrl: '$_youTubeUrl/videos/IyFZznAk69U',
              javascriptMode: JavascriptMode.unrestricted,
              onWebViewCreated: (WebViewController controller) =>
                  _controller = controller,
            ),
          ),
        ],
      ),
      floatingActionButton: FloatingActionButton(
        child: Icon(Icons.play_arrow),
        onPressed: () async {
          await _controller.evaluateJavascript('player.loadVideoById("d_m5csmrf7I")');
        },
      ),
    );
  }
}