onAudioMixingFinished property
        
        void Function()?
        onAudioMixingFinished
        
      
final
      Occurs when the playback of the local music file finishes.
Deprecated: Use onAudioMixingStateChanged instead. After you call startAudioMixing to play a local music file, this callback occurs when the playback finishes. If the call of startAudioMixing fails, the error code WARN_AUDIO_MIXING_OPEN_ERROR is returned.
Implementation
final void Function()? onAudioMixingFinished;