View on GitHub
UserFeatureToggles Protocol Reference
UserFeatureToggles
public protocol UserFeatureTogglesThe interface to user-specified feature toggling, where a user may choose to switch certain features
on or off in the Settings
of your app.
The DefaultAvailabilityChecker uses instances of this type to verify availability of user toggled features
at runtime. The default implementation UserDefaultsFeatureToggles stores the toggled values in User Defaults.
If you want to store your feature toggles differently, implement this protocol and assign your own
instance of DefaultAvailabilityChecker to Flint.availabilityChecker at startup.
-
Call to add an observer for changes to user toggles
Declaration
Swift
func addObserver(_ observer: UserFeatureTogglesObserver) -
Call to remove an observer for changes to user toggles
Declaration
Swift
func removeObserver(_ observer: UserFeatureTogglesObserver) -
Checke if a feature is enabled.
- return: Whether or not the feature should currently be enabled for the user. If the user has not set a preference, return nil
Declaration
Swift
func isEnabled(_ feature: ConditionalFeatureDefinition.Type) -> Bool?