Showcases a problem with the default hit test behavior on Platform Views

main.dart

import 'package:flutter/material.dart';

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

final List<Color> colors = <Color>[
  Colors.blue,
  Colors.red,
  Colors.green,
  Colors.purple,
  Colors.orange,
  Colors.cyan,
  Colors.lime,
];

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  int colorIndex = 0;
  bool includePlatformView = false;

  void _changeColor() {
    setState(() {
      colorIndex = (colorIndex + 1) % colors.length;
    });
  }

  void _changePlatformView(bool include) {
    setState(() {
      includePlatformView = include;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        body: Center(
          child: Container(
            width: 300,
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                Container(
                  child: SwitchListTile(
                    title: const Text('Add Platform View'),
                    value: includePlatformView,
                    onChanged: _changePlatformView,
                  ),
                ),
                GestureDetector(
                  onTap: _changeColor,
                  child: Container(
                    width: 300,
                    height: 300,
                    color: colors[colorIndex],
                    child: includePlatformView ? _platformView() : null,
                  ),
                ),
                Text('Notice when a Platform View is added as a child, taps do not reach the container anymore.'),
              ],
            ),
          ),
        ),
      ),
    );
  }

  Widget? _platformView() {
    if (!includePlatformView) {
      return null;
    }
    final Widget platformView = HtmlElementView.fromTagName(tagName: 'div');
    return platformView;
  }
}