A purpose identifier for coordinated reads and writes.
Mac Catalyst 13.0+Beta
This property contains a unique string that can be used as a purpose identifier for file coordination. The File Provider extension should use this identifier when performing coordinated reads and writes, to help prevent deadlocks.
Pass this identifier to the file coordinator’s setPurposeIdentifier: method before performing a coordinated read or write.
This method returns the containing app’s bundle identifier.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.