CachedValueTypedNotification

open class CachedValueTypedNotification<A> : TypedNotification<A>

Derivation of TypedNotification that remembers the last post value and will use that for any register calls that happen after the post call.

  • The last value given in a post call.

    Declaration

    Swift

    public private(set) var cachedValue: A? { get }

  • Post a notification containing the given value.

    Declaration

    Swift

    override open func post(value: A)

    Parameters

    value

    the value to convey to registered observers

  • Forget any cached value.

    Declaration

    Swift

    public func clear()

  • Register a closure to invoke when post is called. Note that if cachedValue is not nil, the closure will be called immediately.

    Declaration

    Swift

    override open func registerOnAny(block: @escaping (A) -> Void) -> NotificationObserver

    Parameters

    block

    the closure to invoke

    Return Value

    value that will unregister the block if it is no longer held

  • Register a closure to invoke when post is called.

    Declaration

    Swift

    override open func registerOnMain(block: @escaping (A) -> Void) -> NotificationObserver

    Parameters

    block

    the closure to invoke on the main thread

    Return Value

    value that will unregister the block if it is no longer held