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Instance MethodFoundationEssentials

removeObserver(_:)

iOS 26.0+ iPadOS 26.0+ Mac Catalyst 26.0+ macOS 26.0+ tvOS 26.0+ visionOS 26.0+ watchOS 26.0+
Stops the observation represented by the given observation token.
func removeObserver(_ token: NotificationCenter.ObservationToken)

Parameters

token

A unique token representing a specific observer in a specific notification center. You receive this type from prior calls to addObserver(of:for:using:).