presentOptionsMenu(from:animated:)
Displays an options menu and anchors it to the specified bar button item.
Declaration
func presentOptionsMenu(from item: UIBarButtonItem, animated: Bool) -> BoolParameters
Return Value
true if the options menu was displayed or false if it was not. The options menu may not be displayed in cases where there are no appropriate items to include in the menu.
Discussion
The contents of the options menu are built dynamically based on three things:
The type of the document (as specified by the uti property)
The set of installed apps that have registered support for opening documents
The actions that you have indicated as supported in the document interaction controller delegate’s documentInteractionController(_:canPerformAction:) method
Options that cannot be performed on the current document are not included in the menu. For example, if the document cannot be opened by any known apps, the menu does not include options for opening it.
This method displays the options menu asynchronously. The document interaction controller dismisses the menu automatically when the user selects an appropriate option. You can also dismiss it programmatically using the dismissMenu(animated:) method.
To instead present a menu that contains only a list of apps capable of opening the current document, the presentOpenInMenu(from:animated:) method instead.