Flutter无法播放本地视频

Question

我在这里放了一个本地视频：

我想在Landing2类中显示它，但运行后会显示白屏。

这是我的代码：

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

class Landing2 extends StatefulWidget {
  Landing2() : super();

  @override
  Landing2State createState() => Landing2State();
}

class Landing2State extends State<Landing2> {
  VideoPlayerController _controller;
  Future<void> _initializeVideoPlayerFuture;

  @override
  void initState() {
    _controller = VideoPlayerController.asset("videos/video.mp4");
    print(_controller);
    _initializeVideoPlayerFuture = _controller.initialize();
    _controller.setLooping(true);
    super.initState();
  }

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        body: FutureBuilder(
            future: _initializeVideoPlayerFuture,
            builder: (context, snapshot) {
              if (snapshot.connectionState == ConnectionState.done) {
                return AspectRatio(
                    aspectRatio: _controller.value.aspectRatio,
                    child: VideoPlayer(_controller));
              } else {
                return Center(child: CircularProgressIndicator());
              }
            }));
  }
}