CBMutable objects represent the characteristics of a local peripheral’s service (local peripheral devices are represented by CBPeripheral objects). This class adds write access to many of the properties in the CBCharacteristic class it inherits from.
SDKs
- iOS 6.0+
- macOS 10.9+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
Framework
- Core Bluetooth
Declaration
class CBMutableCharacteristic : CBCharacteristic
Overview
You use this class to create a characteristic and to set its properties and permissions as desired. After you create a characteristic and add it to a local service, you can publish it (and the service) to the peripheral’s local database using the add(_:) method of the CBPeripheral class. After you publish a characteristic, the characteristic is cached and you can no longer make changes to it.