handleMethodCall method Null safety

Future handleMethodCall(
  1. MethodCall call
)

Implementation

Future<dynamic> handleMethodCall(MethodCall call) async {
  Map<String, dynamic> arguments = call.arguments ?? {};
  final playerId = arguments['playerId'] ?? "0";
  var player = getOrCreatePlayer(playerId);
  print("------arguments: ${call.method}, player: $arguments");
  switch (call.method) {
    case "getPlatformVersion":
      return "Browser ";
    case "start":
      final String url = arguments["url"];
      // String title = arguments["title"];
      // String desc = arguments["desc"];
      // String cover = arguments["cover"];
      bool isAuto = arguments["isAuto"] ?? false;
      // bool isLocal = arguments["isLocal"] ?? false;
      // bool isLocalCover = arguments["isLocalCover"] ?? false;
      player = await start(playerId, url);
      player.player?.autoplay = isAuto;
      return 1;
    case "playOrPause":
      if (player.isPlaying) {
        player.pause();
      } else {
        player.resume();
      }
      return player.isPlaying;
    case "play":
      player.resume();
      return player.isPlaying;
    case "pause":
      player.pause();
      return player.isPlaying;
    case "stop":
      player.stop();
      break;
    case 'release':
      player.release();
      return 1;
    case "seekTo":
      double position = call.arguments['position'] ?? 0;
      player.seekTo(position);
      break;
    case 'rate':
      double rate = call.arguments['rate'] ?? 1.0;
      player.setRate(rate);
      return 1;
    case "setVolume":
      double volume = call.arguments['volume'] ?? 1.0;
      player.setVolume(volume);
      break;
    case "currentVolume":
      return player.currentVolume;
    case 'updateLrc':
    default:
      throw PlatformException(
        code: 'Unimplemented',
        details:
            "The plugin for web doesn't implement the method '${call.method}'",
      );
  }
}