Enumeration members
AudioSessionCategoryChange
AudioSessionCategoryChange: = 13
AudioSessionDeactive
AudioSessionDeactive: = 12
DeviceOccupied
DeviceOccupied: = 5
DeviceUnplugged
DeviceUnplugged: = 6
Generic
Generic: = 1
InvalidId
InvalidId: = 2
MagneticCase
MagneticCase: = 11
MediaServicesWereLost
MediaServicesWereLost: = 8
PermissionNotGranted
PermissionNotGranted: = 3
RebootRequired
RebootRequired: = 7
SiriIsRecording
SiriIsRecording: = 9
SoundLevelTooLow
SoundLevelTooLow: = 10
Unknown
Unknown: = 0
ZeroCaptureFps
ZeroCaptureFps: = 4
设备异常类型。