Type Alias

UIActivityViewController.CompletionWithItemsHandler

A completion handler to execute after the activity view controller is dismissed.

Declaration

typealias CompletionWithItemsHandler = (UIActivity.ActivityType?, Bool, [Any]?, Error?) -> Void

Discussion

Upon the completion of an activity, or the dismissal of the activity view controller, the view controller’s completion block is executed. You can use this block to execute any final code related to the service. The parameters of this block are as follows:

activityType

The type of the service that was selected by the user. For custom services, this is the value returned by the activityType method of a UIActivity object. For system-defined activities, it is one of the strings listed in "Built-in Activity Types” in UIActivity.

completed

true if the service was performed or false if it was not. This parameter is also set to false when the user dismisses the view controller without selecting a service.

returnedItems

An array of NSExtensionItem objects containing any modified data. Use the items in this array to get any changes made to the original data by an extension. If no items were modified, the value of this parameter is nil.

activityError

An error object if the activity failed to complete, or nil if the the activity completed normally.