Static AVAudioSessionMicrophoneInjectionCapabilitiesChangeNotification

pub unsafe static AVAudioSessionMicrophoneInjectionCapabilitiesChangeNotification: &'static NSNotificationName

Available on crate feature AVAudioSession only.

Notification sent to registered listeners when the system’s capability to inject audio into input stream is changed

Check the notification’s userInfo dictionary for AVAudioSessionMicrophoneInjectionIsAvailableKey to check if microphone injection is available. Use AVAudioSession’s isMicrophoneInjectionAvailable property to check if microphone injection is available

See also Apple’s documentation