audioMixingStateChanged property Null safety
Occurs when the playback state of the local user's music file changes.
When you call the RtcEngine.startAudioMixing method and the state of audio mixing file changes, the Agora SDK triggers this callback. When the playback state of the local user's music file changes, the SDK triggers this callback and reports the current playback state and the reason for the change.
AudioMixingStateCallback typedef includes the following parameters: