widget will not dispose after hot restart.

[ganluo960214]

Code sample

import 'package:card_swiper/card_swiper.dart';
import 'package:flutter/material.dart';
import 'package:video_player/video_player.dart';

void main() {
  runApp(const MyApp());
}

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

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: WrapWidget(
        videoUris: [
          IAC()
        ],
      ),
    );
  }
}

class WrapWidget extends StatefulWidget {
  const WrapWidget({
    super.key,
    required this.videoUris,
  });

  final List<IAC> videoUris;

  @override
  State<WrapWidget> createState() => _WrapWidgetState();
}

class _WrapWidgetState extends State<WrapWidget> {
  @override
  Widget build(BuildContext context) {
    return Swiper(
      itemCount: 2,
      itemBuilder: (BuildContext context, int index){
        if(index==0){
          return Placeholder();
        }else{
          return widget.videoUris[0].a();
        }
      },
        // child: widget.videoUris[0].a()
    );
  }
}

abstract class AC{
  Widget a();
}
class IAC implements AC{
  @override
  Widget a(){
    return const Demo();
  }
}

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

  @override
  State<Demo> createState() => _DemoState();
}

class _DemoState extends State<Demo> {

  @override
  void initState() {
    print("_VideoWidgetNeedDisposeState-initState");
    const uri = "https://flutter.github.io/assets-for-api-docs/assets/videos/bee.mp4";
    controller = VideoPlayerController.networkUrl(Uri.parse(uri));
    initializeVideoPlayerFuture = controller.initialize();
    controller.setLooping(true);

    super.initState();
  }

  late final VideoPlayerController controller;
  late final Future<void> initializeVideoPlayerFuture;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: FutureBuilder(
        future: initializeVideoPlayerFuture,
        builder: (BuildContext context, AsyncSnapshot<dynamic> snapshot) {

          if (snapshot.connectionState == ConnectionState.done) {
            controller.play();
            return Stack(
              children: [
                Center(
                  child: AspectRatio(
                    aspectRatio: controller.value.aspectRatio,
                    child: VideoPlayer(controller),
                  ),
                ),
              ],
            );
          }else{
            return const Center(
              child: CircularProgressIndicator(),
            );
          }
        },
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () {
          controller.play();
        },
        child: const Icon(Icons.play_circle),
      ),
    );
  }

  @override
  void dispose() {
    print("_VideoWidgetNeedDisposeState-dispose");
    super.dispose();
    controller.dispose();
  }

}

[ganluo960214]

first swipe to right, then hot restart. you still can hearing video's audio.