getVolume method Null safety

Future<double> getVolume(
  1. AudioDeviceType audioDeviceType
)

Returns the current volume for the given audio device type.

Implementation

static Future<double> getVolume(AudioDeviceType audioDeviceType) async {
  final Map<String, dynamic> arguments = {'deviceType': audioDeviceType.index};
  final result = await audioMethodChannel.invokeMethod<double>('getAudioVolume', arguments);
  return result as double;
}