setMusicObserver abstract method
Setting the Background Music Callback
- 
Before playing background music, please use this API to set the music callback, which can inform you of the playback progress.
 - 
Parameters:
- musicId(int):
- Music ID.
 
 - observer(TXMusicPlayObserver)
 
 - musicId(int):
 
Note:
- If the ID does not need to be used, the observer can be set to NULL to release it completely.
 
Implementation
void setMusicObserver(int musicId, TXMusicPlayObserver? observer);