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Co-authored-by: Alex Martini <amartini@apple.com> Co-authored-by: Graham Lee <glee23@apple.com> Co-authored-by: Chris Adamson <cadamson@apple.com> Co-authored-by: Kirby Turner <kirby_turner@apple.com> Co-authored-by: Paris Pinkney <ppinkney@apple.com> Co-authored-by: Dave Spector <dspector@apple.com> Co-authored-by: Sofia Rodriguez Morales <sofia_rodriguez@apple.com> Co-authored-by: Ethan Kusters <ekusters@apple.com> Co-authored-by: Goli Mohammadi <g_mohammadi@apple.com> Co-authored-by: Adora Vaz <a_vaz@apple.com> Co-authored-by: David Rönnqvist <ronnqvist@apple.com> Co-authored-by: Nate Merseth Cook <natecook@apple.com> Co-authored-by: Susan Conant <susan_c@apple.com>
477 B
477 B
Observation/Observable
@Metadata { @DocumentationExtension(mergeBehavior: override) }
A type that emits notifications to observers when underlying data changes.
Conforming to this protocol signals to other APIs that the type supports
observation. However, applying the Observable protocol by itself to a
type doesn't add observation functionality to the type. Instead, always use
the Observation/Observable() macro when adding observation
support to a type.