getAudioTrackCount method

@override Future<int?> getAudioTrackCount()

Gets the audio track index of the current music file.

Since v4.2.0

Note:

• Call this method after calling startAudioMixing and receiving the RtcEngineEventHandler.audioMixingStateChanged event callback with state code AudioMixingStateCode.Playing.
• For the audio file formats supported by this method, see What formats of audio files does the Agora RTC SDK support.

Returns

• ≥ 0: The audio track index of the current music file, if this method call succeeds.
• < 0: Failure.

Implementation

@override
Future<int?> getAudioTrackCount() {
  return _invokeMethod('getAudioTrackCount');
}