【flutter better_player_plus实现普通播放器功能】

引入better_player_plus: ^1.1.5

dart 复制代码

import 'package:better_player_plus/better_player_plus.dart';

late BetterPlayerController _videoController;
@override
  void initState() {
    // TODO: implement initState
    super.initState();
    //BoxFit.contain + fullScreenByDefault=true + autoDetectFullscreenAspectRatio = true,设置后播放器播放时默认按视频的宽高比例放大填充父布局
    final betterPlayerConfiguration = BetterPlayerConfiguration(
          fit: BoxFit.contain,
          autoPlay: true,
          looping: true,
          fullScreenByDefault: true,
          autoDetectFullscreenAspectRatio: true,
          controlsConfiguration: const BetterPlayerControlsConfiguration(
            showControls: false, // 是否显示控制栏
            enableSkips: false, // 禁用快进/快退
          )
      );

     _videoController = BetterPlayerController(betterPlayerConfiguration,betterPlayerDataSource: dataSource);
     _videoController.addEventsListener(_videoListener);
    }

_videoListener(BetterPlayerEvent event) async {
    switch(event.betterPlayerEventType){
      case BetterPlayerEventType.initialized:
        setState(() {
          _isVideoInit = true;
          double? videoWidth = _videoController.videoPlayerController?.value.size?.width;
          double? videoHeight = _videoController.videoPlayerController?.value.size?.height;
          print('_videoWidth= $videoWidth  _videoHeight= $videoHeight');

          if(videoWidth != null && videoHeight != null){
            double aspectRatio = videoHeight / videoWidth;
            _logic.videoAspectRatio = aspectRatio;
          }
          _videoController.play();
        });
        break;
      case BetterPlayerEventType.progress:
        Duration res = _videoController.videoPlayerController!.value.position;
        Duration? totalDuration = _videoController.videoPlayerController?.value.duration;
        if (_videoController.isPlaying() == true && _key.currentState != null) {
          /// 减少build次数
          _key.currentState!.setPosition(
            position: res,
            totalDuration: totalDuration,
          );
        }
        break;
      case BetterPlayerEventType.bufferingStart:
        _isBuffering = true;
        break;
      case BetterPlayerEventType.bufferingEnd:
        _isBuffering = false;
        break;
        case BetterPlayerEventType.exception:
          esLoadingToast('视频加载失败');
          print('视频播放器问题：${_videoController.videoPlayerController!.value.errorDescription} =====');
        break;
        default:
          break;
    }
  }

@override
  void dispose() {
    // TODO: implement dispose
    _videoController.removeEventsListener(_videoListener);
    _videoController.dispose();
    super.dispose();
  }


@override
  Widget build(BuildContext context) {
    // TODO: implement build
    return Scaffold(
      backgroundColor: Colors.black,
      body: BetterPlayer(controller: _videoController),
    );
  }

只配置fit: BoxFit.contain时，播放时显示区域虽然按视频比例，但是不会尽可能大的充满屏幕

BoxFit.contain + fullScreenByDefault=true + autoDetectFullscreenAspectRatio = true,播放时显示区域按视频比例比例尽可能大的充满屏幕