Physical volume button pressed notification "AVSystemController_SystemVolumeDidChangeNotification" stopped working with the release of iOS 15.
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AVAudioSession::OutputVolume (https://developer.apple.com/documentation/avfaudio/avaudiosession/1616533-outputvolume?language=objc) seems like the preferred approach but the limitation is that it doesn't provide a callback when volume is at max (press up) or min (press down). is there any alternative to get the callback even when the volume is at max or min?
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There is a new notification available "SystemVolumeDidChange" that works similar to "AVSystemController_SystemVolumeDidChangeNotification". Please can you confirm if it a Private API or if it may be used to publish apps on App Store?
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Our use case requires the physical volume button press notification even if volume is already at max or min. is there any other alternative approach available?
