[移动开发]Flutter视频播放video_player + chewie

video_player 视频播放结合chewie控制器使用

  video_player: ^2.1.2

import 'package:video_player/video_player.dart';
import 'package:flutter/material.dart';
void main() => runApp(const VideoApp());

/// Stateful widget to fetch and then display video content.
class VideoApp extends StatefulWidget {
  const VideoApp({Key key}) : super(key: key);

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

class _VideoAppState extends State<VideoApp> {
  //全局控制
  VideoPlayerController _controller;

  @override
  void initState() {
    super.initState();
    //进行初始化
    _controller = VideoPlayerController.network(
        'https://flutter.github.io/assets-for-api-docs/assets/videos/bee.mp4')
    //将视频加载进页面
      ..initialize().then((_) {
        // Ensure the first frame is shown after the video is initialized, even before the play button has been pressed.
        setState(() {});
      });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Video Demo',
      home: Scaffold(
        body: Center(
          child: _controller.value.isInitialized
              ? AspectRatio(
            aspectRatio: _controller.value.aspectRatio,
            child: VideoPlayer(_controller),
          )
              : Container(),
        ),
        floatingActionButton: FloatingActionButton(
          onPressed: () {
            setState(() {
              _controller.value.isPlaying
                  ? _controller.pause()
                  : _controller.play();
            });
          },
          child: Icon(
            _controller.value.isPlaying ? Icons.pause : Icons.play_arrow,
          ),
        ),
      ),
    );
  }

  @override
  void dispose() {
    //将控制销毁
    super.dispose();
    _controller.dispose();
  }
}

    //获取当前视频播放的信息
    VideoPlayerValue videoPlayerValue = _videoPlayerController.value;
    //是否初始化完成
    bool initialized = videoPlayerValue.initialized;
    //是否正在播放
    bool isPlaying = videoPlayerValue.isPlaying;
    //当前播放的视频的宽高比例
    double aspectRatio = videoPlayerValue.aspectRatio;
    //当前视频是否缓存
    bool isBuffer = videoPlayerValue.isBuffering;
    //当前视频是否循环
    bool isLoop = videoPlayerValue.isLooping;
    //当前播放视频的总时长
    Duration totalDuration = videoPlayerValue.duration;
    //当前播放视频的位置
    Duration currentDuration = videoPlayerValue.position;
    if (initialized) {
      // 视频已初始化
      if (isPlaying) {
        // 正播放 --- 暂停
        _videoPlayerController.pause();
      } else {
        //暂停 ----播放
        _videoPlayerController.play();
      }
      setState(() {});
    } else {
      //未初始化
      _videoPlayerController.initialize().then((_) {
        // videoPlayerController.play();
        // setState(() {});
      });
    }

    //获取当前视频播放的信息
    VideoPlayerValue videoPlayerValue = _videoPlayerController.value;

    //是否初始化完成
    bool initialized = videoPlayerValue.initialized;
    //是否正在播放
    bool isPlaying = videoPlayerValue.isPlaying;
    //当前播放的视频的宽高比例
    double aspectRatio = videoPlayerValue.aspectRatio;
    //当前视频是否缓存
    bool isBuffer = videoPlayerValue.isBuffering;
    //当前视频是否循环
    bool isLoop = videoPlayerValue.isLooping;
    //当前播放视频的总时长
    Duration totalDuration = videoPlayerValue.duration;
    //当前播放视频的位置
    Duration currentDuration = videoPlayerValue.position;
    if (initialized) {
      // 视频已初始化
      if (isPlaying) {
        // 正播放 --- 暂停
        _videoPlayerController.pause();
      } else {
        //暂停 ----播放
        _videoPlayerController.play();
      }
      setState(() {});
    } else {
      //未初始化
      _videoPlayerController.initialize().then((_) {
        // videoPlayerController.play();
        // setState(() {});
      });
    }

参考文章

播放器插件对比

在Flutter中播放器插件可以分为三大类：

官方播放器：
video_player 基于video_player封装的播放器：
chewie
better_player 基于ijkplayer等方案的播放器
flutter_ijkplayer

chewie属性说明

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

class ChewieVideoPage extends StatefulWidget {
  ChewieVideoPage({Key key}) : super(key: key);

  @override
  State<ChewieVideoPage> createState() => _ChewieVideoPageState();
}

class _ChewieVideoPageState extends State<ChewieVideoPage> {
  VideoPlayerController videoPlayerController;
   ChewieController chewieController;

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    videoPlayerController = VideoPlayerController.network(
        'https://qiniu.xiaodengmi.com/a9ac5d86ca3109cb22ed805b1f227074.mp4');
    chewieController = ChewieController(
      videoPlayerController: videoPlayerController,
      aspectRatio: 3 / 2,
      autoPlay: true,
      looping: true,
    );
  }

  @override
  void dispose() {
    // TODO: implement dispose
    videoPlayerController.dispose();
    chewieController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("在线播放视频"),
      ),
      body: Center(
        child: Chewie(
          controller: chewieController,
        ),
      ),
    );
  }
}