activePrimaryConstituent
A virtual device’s active primary constituent device.
Declaration
var activePrimaryConstituent: AVCaptureDevice? { get }Discussion
The primary constituent device may change when zoom, exposure, or focus changes. The value is nil for nonvirtual devices.
This property is key-value observable.
See Also
Restricting camera switching
setPrimaryConstituentDeviceSwitchingBehavior(_:restrictedSwitchingBehaviorConditions:)primaryConstituentDeviceSwitchingBehaviorprimaryConstituentDeviceRestrictedSwitchingBehaviorConditionsactivePrimaryConstituentDeviceSwitchingBehavioractivePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditionsAVCaptureDevice.PrimaryConstituentDeviceSwitchingBehaviorAVCaptureDevice.PrimaryConstituentDeviceRestrictedSwitchingBehaviorConditionssupportedFallbackPrimaryConstituentDevicesfallbackPrimaryConstituentDevices