Instance Method

willPresentError(_:)

Indicates an error condition and provides the opportunity to return the same or a different error.

Declaration

func willPresentError(_ error: Error) -> Error

Parameters

error

The error to present.

Discussion

The default implementation of this method merely returns the passed-in error. The returned error may simply be forwarded to the application object.

You can override this method to customize the presentation of errors by examining the passed-in error and, for example, returning more specific information. When you override this method always check the NSError object's domain and code to discriminate between errors whose presentation you want to customize and those you don't. For errors you don't want to customize, call the superclass implementation, passing the original error.

See Also

Handling Errors

func presentError(Error) -> Bool

Presents an error alert to the user as a modal panel.