Pushes the current execution context to use the provided activity.
- iOS 10.0+
- macOS 10.12+
- Mac Catalyst 13.0+Beta
- tvOS 10.0+
- watchOS 3.0+
An activity object.
You can alternatively pass one of the global activity constants, such as OS_ACTIVITY_NONE or OS_ACTIVITY_CURRENT.
A stack-based container for the state.
Creating and Accessing Activities
Ends the specified activity on the current thread.
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