PersistenceProvider class abstract

Declares a contract to remember which Feature Discoveries were already viewed by the user, and to inquire about such past views.

Implementers

• MemoryPersistenceProvider
• NoPersistenceProvider
• SharedPreferencesProvider

Constructors

PersistenceProvider()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

clearStep(String featureId) → Future<void>

Requests that the persistence layer should remove the completion of the step identified by featureId.

clearSteps(Iterable<String> featuresIds) → Future<void>

Requests that the historic steps identified by featuresIds be cleared from the persistence layer.

completedSteps(Iterable<String?>? featuresIds) → Future<Set<String?>>

Returns the list of steps (as strings) that the user has previously completed from the provided featuresIds set.

completeStep(String? featureId) → Future<void>

Informs the persistence layer that the user has completed the step identified by featureId, and that it should record it in the persistence layer.

hasCompletedStep(String featureId) → Future<bool>

Returns true if the step identified by featureId has completed by the user earlier, false otherwise.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited