Stop audio when app go to the background in flutter with just_audio package

Question

I have a flutter app that use just_audio package to listen music. When my app go in the background, the audio don't stop and i'm not using audio_service or just_audio_background.

How can I do the most simply way to just stop the music when the app go in the background, without using audio_service or just_audio_background if possible.

Thanks !