如何显示本地视频而不是抖动显示图片？

Question

我想在我的flutter应用程序中显示本地视频而不是图片，我不知道如何显示它。如何在抖动中显示本地视频？你有资料吗？

**new GestureDetector(
                onTap: () {
                     _spaikiURL();
                },
                child: Container(
                  decoration: new BoxDecoration(
                  color: Colors.transparent,
                    image: new DecorationImage(
                      image: AssetImage(
                          "res/i2.jpg"),
                      fit: BoxFit.scaleDown,
                    ),
                        ),
                ),
              ), **

Answer 1

请使用chewie https://pub.dev/packages/chewie和video_player https://pub.dev/packages/video_player

代码段

_videoPlayerController2 = VideoPlayerController.asset(
    'assets/videos/sample.mp4');

完整代码

import 'package:chewie/chewie.dart';
import 'package:chewie/src/chewie_player.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:video_player/video_player.dart';

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

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.blue,
      ),
      home: ChewieDemo(title: 'Flutter Demo Home Page'),
    );
  }
}

class ChewieDemo extends StatefulWidget {
  ChewieDemo({this.title = 'Chewie Demo'});

  final String title;

  @override
  State<StatefulWidget> createState() {
    return _ChewieDemoState();
  }
}

class _ChewieDemoState extends State<ChewieDemo> {
  TargetPlatform _platform;
  VideoPlayerController _videoPlayerController1;
  VideoPlayerController _videoPlayerController2;
  ChewieController _chewieController;

  @override
  void initState() {
    super.initState();
    _videoPlayerController1 = VideoPlayerController.network(
        'https://flutter.github.io/assets-for-api-docs/assets/videos/butterfly.mp4');
    _videoPlayerController2 = VideoPlayerController.asset(
        'assets/videos/sample.mp4');
    _chewieController = ChewieController(
      videoPlayerController: _videoPlayerController1,
      aspectRatio: 3 / 2,
      autoPlay: true,
      looping: true,
      // Try playing around with some of these other options:

      // showControls: false,
      // materialProgressColors: ChewieProgressColors(
      //   playedColor: Colors.red,
      //   handleColor: Colors.blue,
      //   backgroundColor: Colors.grey,
      //   bufferedColor: Colors.lightGreen,
      // ),
      // placeholder: Container(
      //   color: Colors.grey,
      // ),
      // autoInitialize: true,
    );
  }

  @override
  void dispose() {
    _videoPlayerController1.dispose();
    _videoPlayerController2.dispose();
    _chewieController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: widget.title,
      theme: ThemeData.light().copyWith(
        platform: _platform ?? Theme.of(context).platform,
      ),
      home: Scaffold(
        appBar: AppBar(
          title: Text(widget.title),
        ),
        body: Column(
          children: <Widget>[
            Expanded(
              child: Center(
                child: Chewie(
                  controller: _chewieController,
                ),
              ),
            ),
            FlatButton(
              onPressed: () {
                _chewieController.enterFullScreen();
              },
              child: Text('Fullscreen'),
            ),
            Row(
              children: <Widget>[
                Expanded(
                  child: FlatButton(
                    onPressed: () {
                      setState(() {
                        _chewieController.dispose();
                        _videoPlayerController2.pause();
                        _videoPlayerController2.seekTo(Duration(seconds: 0));
                        _chewieController = ChewieController(
                          videoPlayerController: _videoPlayerController1,
                          aspectRatio: 3 / 2,
                          autoPlay: true,
                          looping: true,
                        );
                      });
                    },
                    child: Padding(
                      child: Text("Video 1"),
                      padding: EdgeInsets.symmetric(vertical: 16.0),
                    ),
                  ),
                ),
                Expanded(
                  child: FlatButton(
                    onPressed: () {
                      setState(() {
                        _chewieController.dispose();
                        _videoPlayerController1.pause();
                        _videoPlayerController1.seekTo(Duration(seconds: 0));
                        _chewieController = ChewieController(
                          videoPlayerController: _videoPlayerController2,
                          aspectRatio: 3 / 2,
                          autoPlay: true,
                          looping: true,
                        );
                      });
                    },
                    child: Padding(
                      padding: EdgeInsets.symmetric(vertical: 16.0),
                      child: Text("Video 2"),
                    ),
                  ),
                )
              ],
            ),
            Row(
              children: <Widget>[
                Expanded(
                  child: FlatButton(
                    onPressed: () {
                      setState(() {
                        _platform = TargetPlatform.android;
                      });
                    },
                    child: Padding(
                      child: Text("Android controls"),
                      padding: EdgeInsets.symmetric(vertical: 16.0),
                    ),
                  ),
                ),
                Expanded(
                  child: FlatButton(
                    onPressed: () {
                      setState(() {
                        _platform = TargetPlatform.iOS;
                      });
                    },
                    child: Padding(
                      padding: EdgeInsets.symmetric(vertical: 16.0),
                      child: Text("iOS controls"),
                    ),
                  ),
                )
              ],
            )
          ],
        ),
      ),
    );
  }
}

pubspec.yaml

dependencies:
  flutter:
    sdk: flutter
  video_player: any
  chewie: 0.9.0

  ...
  assets:
    - assets/videos/