handsFree(_:isServiceAvailable:)
Tells the delegate the service level indicator of the connected Bluetooth hands-free phone or headset has changed.
Declaration
optional func handsFree(_ device: IOBluetoothHandsFreeDevice!, isServiceAvailable: NSNumber!)Parameters
- device:
The connected Bluetooth hands-free phone or headset.
- isServiceAvailable:
The new service level. For possible values, see Iobluetoothhandsfreeindicatorservice.