preferredFilenameExtension(forType:)
Returns the preferred filename extension for the specified Uniform Type Identifier (UTI).
Declaration
func preferredFilenameExtension(forType typeName: String) -> String?Parameters
- typeName:
A string containing the UTI.
Return Value
The appropriate filename extension for typeName, or nil if no extension could be determined.
Discussion
You can safely call this method from any thread of your app.