[iOS] AudioSessionOperationRestriction doesn't work

[liamdo192]

Describe the bug
I want to customize the AudioSession myself. I tried setting AudioSessionOperationRestrictionAll or AudioSessionOperationRestrictionSetCategory, but it doesn’t work. The AudioSession still changes when joining a channel.

To Reproduce
Steps to reproduce the behavior:

1. Before joining a session, the AudioSession is set to AVAudioSessionCategorySoloAmbient with AVAudioSessionModeDefault
2. I set AudioSessionOperationRestrictionAll before joining the session. (Also tried AudioSessionOperationRestrictionSetCategory too)
3. After joining the session, the AudioSession changes to AVAudioSessionCategoryPlayAndRecord with AVAudioSessionModeVoiceChat

Expected behavior
I don’t want the Agora SDK to affect my custom Audio Session

Logs
[2024-10-29 10:31:42.838][1978485][I][iris_rtc_api_engine.cc:387] api name RtcEngine_setAudioSessionOperationRestriction_c492897 params "{"restriction":2}"
[2024-10-29 10:31:42.838][1978485][I][iris_rtc_api_engine.cc:451] api name RtcEngine_setAudioSessionOperationRestriction_c492897 result 0 outdata {"result":0}

Smartphone (please complete the following information):

• OS: iOS 17.5
• React Native: 0.72.12
• Agora version: 4.4.0

Additional context
I want to make a video call and play a local audio file in the same time. So I want to custom Audio Session to resolve the volume issue.

[guoxianzhe]

@liamdo192 Can you setAudioSessionOperationRestriction after engine.initialize immediately and try again? If still not work , pls contact to our tech support with detail logs : https://www.agora.io/en/customer-support/

[liamdo192]

I added it after engine.initialize, but it doesn't work