adjustRecordingSignalVolume method Null safety

Future<int> adjustRecordingSignalVolume(
  1. int volume
)

Adjust the recording volume. The method can be called before or after joining a channel. Value range: 0 ~ 400 0: muted 100: Original volume (default) 400: The maximum value can be four times the original volume. The limit value is protected.

volume adjusted volume

Implementation

Future<int> adjustRecordingSignalVolume(int volume) async {
  IntValue reply =
      await _api.adjustRecordingSignalVolume(IntValue()..value = volume);
  return reply.value ?? -1;
}