A Boolean value indicating whether the characteristic is currently notifying a subscribed central of its value.
- iOS 5.0+
- macOS 10.7+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 4.0+
- Core Bluetooth
true if you have enabled notifications or indications for the characteristic by successfully calling the
set method of the
CBPeripheral class. If the value of this property is
true, the peripheral updates the subscribed central that it is connected to whenever the characteristic’s value has changed. If the value of the property is
false, notifications (or indications) have not been enabled for the characteristic, and the peripheral does not update the central that it is connected to whenever the characteristic’s value has changed.