Instance Method

present(from:animated:completionHandler:)

Present the picker in a popover that is anchored to the specified bar button item.

Declaration

func present(from item: UIBarButtonItem, animated: Bool, completionHandler completion: UIPrinterPickerController.CompletionHandler? = nil) -> Bool

Parameters

item

The bar button item to use as the anchor for the popover.

animated

true to animate the display of the picker or false to display it without animations.

completion

A block to execute when the picker is dismissed. Use this block to receive information about the selected printer or information about any errors that occurred.

Return Value

true if the picker was displayed or false if the picker was already visible.

Discussion

This method presents the picker from a popover or from the view controller you specify using your delegate object. If you provide a delegate object and that object implements the printerPickerControllerParentViewController(_:) method, UIKit presents the picker using the view controller you specify. If you do not provide a delegate, or your delegate object does not implement the printerPickerControllerParentViewController(_:) method, UIKit presents the picker using a popover attached the bar button you specified in the item parameter.

After presenting the picker, the picker interface runs until the user or your app dismisses it. The picker interface provides ways for the user to cancel printing directly, all of which dismiss the picker. You can also dismiss the printer picker programmatically by calling the dismiss(animated:) method.

Calling this method while the picker is currently displayed in a popover dismisses the popover.

See Also

Presenting and Dismissing the Picker