onAudioPlaybackDeviceTestVolume method

FutureOr<void> onAudioPlaybackDeviceTestVolume(
  1. dynamic volume
)
override

@detail callback @author dixing @brief Notification on the playing volume during the test for the local audio devices @param volume Playing volume during the test for the local audio devices. The range is 0,255. @note Start an audio-device test by calling startAudioPlaybackDeviceTest{@link #IRTCAudioDeviceManager#startAudioPlaybackDeviceTest} or startAudioDeviceRecordTest{@link #IRTCAudioDeviceManager#startAudioDeviceRecordTest} will register this callback for regular notification on playing volume. You can set the time interval between each callback by passing a proper value when calling the API above.

Implementation

FutureOr<void> onAudioPlaybackDeviceTestVolume(dynamic volume) async {
  if ($instance == null || $instance is! IRTCEngineEventHandler) {
    return;
  }
  return ($instance as IRTCEngineEventHandler)
      .onAudioPlaybackDeviceTestVolume
      ?.call(int.tryParse(volume.toString()) ?? 0);
}