fallbackPrimaryConstituentDevices
The fallback devices to use when a constituent device with a longer focal length becomes limited by its light sensitivity or minimum focus distance.
Declaration
var fallbackPrimaryConstituentDevices: [AVCaptureDevice] { get set }Discussion
By default, this value contains the array of devices that the supportedFallbackPrimaryConstituentDevices property provides. The system throws an exception if you attempt to specify a device other than the ones found in the device array.
This property is key-value observable.
See Also
Restricting camera switching
setPrimaryConstituentDeviceSwitchingBehavior(_:restrictedSwitchingBehaviorConditions:)primaryConstituentDeviceSwitchingBehaviorprimaryConstituentDeviceRestrictedSwitchingBehaviorConditionsactivePrimaryConstituentDeviceSwitchingBehavioractivePrimaryConstituentDeviceRestrictedSwitchingBehaviorConditionsactivePrimaryConstituentAVCaptureDevice.PrimaryConstituentDeviceSwitchingBehaviorAVCaptureDevice.PrimaryConstituentDeviceRestrictedSwitchingBehaviorConditionssupportedFallbackPrimaryConstituentDevices