App disables background music

Hi,

I'm trying to make my app not disable the background music (Spotify for example) when it loads. I've tried to put

[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryAmbient error:nil];

both in

UnityController.mm  application:didFinishLaunchingWithOptions

and

UnityController.mm startUnity()

If my app gets loaded in the background -> load Spotify and play some music -> resume to my app, it works fine, but if I start Spotify first and then start my app, the music will stop. How can I fix this? Sorry if this has been asked before, but I couldn't find anything.

// Edit
Unity 2018.3.0f2
Xcode 10.1

// Later edit
I think there should be a dropdown list with all AVASessionCategories in the Player Settings to force the app start in that specific mode instead of finding workarounds

Thanks

 

It looks like there has been a bug report with this issue for a couple of days now. Is there any work around this? I am looking to test my app within the next couple of days, and this could have quite a bit of an impact on the retention.

 

I had an issue years ago where a user reported their iPhone would not play their own music while playing my game. I reproduced the issue and solved it by not having any MP3 files playing in my game. I switched my music file from MP3 to WAV.

 

Thanks for the tip @moonjump , but I've implemented FMOD for now and it works very well. I might not even go back to unity's audio system after all