如何使用video_player和Chewie正确地捕捉到实时流中的最新位置？

import 'package:video_player/video_player.dart';
import 'package:chewie/chewie.dart';

VideoPlayerController _controller;

@override
void initState() {
  super.initState();
  _controller = VideoPlayerController.network('YOUR_VIDEO_URL');
  _controller.initialize().then((_) {
    setState(() {});
  });
}

ChewieController _chewieController;

@override
void initState() {
  super.initState();
  _controller = VideoPlayerController.network('YOUR_VIDEO_URL');
  _controller.initialize().then((_) {
    setState(() {
      _chewieController = ChewieController(
        videoPlayerController: _controller,
        autoPlay: true,
        looping: true,
      );
    });
  });
}

@override
Widget build(BuildContext context) {
  return Scaffold(
    appBar: AppBar(
      title: Text('Video Player'),
    ),
    body: _controller.value.initialized
        ? Chewie(
            controller: _chewieController,
          )
        : Center(
            child: CircularProgressIndicator(),
          ),
  );
}

@override
void dispose() {
  super.dispose();
  _controller.dispose();
  _chewieController.dispose();
}