Foundation · IOS API REFERENCE

NSMetadataQuery.DidFinishGatheringMessage

struct · iOS 26.0+ · SDK 27.1

struct DidFinishGatheringMessage

A message a metadata query sends when it finishes the initial result-gathering phase of the query. Observe this message with the identifier ``NotificationCenter/MessageIdentifier/didFinishGathering``, or specify its type directly to the `addObserver(of:for:using:)` method. The ``NotificationCenter/MainActorMessage/Subject`` of this message type is ``NSMetadataQuery``. This message interoperates with the notification ``NSNotification/Name/NSMetadataQueryDidFinishGathering``. The system notifies observers of the message when the ``NotificationCenter`` posts the notification. Similarly, the system notifies observers of the notification when it posts the message.

Members (3)

static · iOS 26.0+

makeMessage

TypeScript

static makeMessage(notification: Notification): (NSMetadataQuery_DidFinishGatheringMessage) | null

Swift declaration

static func makeMessage(_ notification: Notification) -> NSMetadataQuery.DidFinishGatheringMessage?

Converts a posted notification into this asynchronous message type for any observers. To implement this method in your own `AsyncMessage` conformance, retrieve values from the ``Notification``'s ``Notification/userInfo`` and set them as properties on the message. - Parameter notification: The posted ``Notification``. - Returns: The converted `AsyncMessage`, or `nil` if conversion is not possible.

get · iOS 26.0+

name

TypeScript

static get nameValue(): NSNotification_Name

Swift declaration

static var name: Notification.Name { get }

A optional name corresponding to this type, used to interoperate with notification posters and observers.

init · iOS 26.0+

init

TypeScript

static init(): NSMetadataQuery_DidFinishGatheringMessage

Swift declaration

init()

Creates a message for a metadata query that finished its initial result gathering.

Skipped declarations

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