getMinVol method Null safety

Future<int?> getMinVol(
  1. StreamType streamType
)

Returns min volume for a streamType

int mediaMinVol = await RealVolume.getMinVol(StreamType.Media);

Implementation

static Future<int?> getMinVol(StreamType streamType) async {
  final int? version = await _methodChannel
      .invokeMethod('getMinVol', {'streamType': streamType.index});
  return version;
}