Contents

typeForContents(of:)

Returns, for a specified URL, the document type identifier to use when opening the document at that location, if successful.

Declaration

func typeForContents(of url: URL) throws -> String

Parameters

  • url:

    The URL to use for locating the type identifier.

Discussion

The URL is represented by url. If not successful, the method returns nil after setting outError to point to an NSError object that encapsulates the reason why the document type could not be determined, or the fact that the document type is unrecognized.

You can override this method to customize type determination for documents being opened.

See Also

Managing Document Types