iOS 8 Share extension: is there callback available to know if user quit the host app while the share extension is being presented?

Question

While share extension view controller is being presented (visible), is there callback method that can be implemented in the extension's view controller to know when user presses home button which will cause the host app to resign active?

I have tried the following:

viewWillDisappear:
viewDidDisappear:
UIApplicationWillResignActiveNotification
UIApplicationDidEnterBackgroundNotification

None of the above works.

I need the callback so that when user closes the app, I would like to suspend all network operations that is currently running in the share extension process.

score 1 · Answer 1 · answered Aug 06 '15 at 08:29

You can register for the following notifications (defined in NSExtensionContext):

NSExtensionHostWillEnterForegroundNotification
NSExtensionHostDidEnterBackgroundNotification
NSExtensionHostWillResignActiveNotification
NSExtensionHostDidBecomeActiveNotification

-viewWillDisappear:/-viewDidDisappear: only apply to the view controller used to present the share extension.

iOS 8 Share extension: is there callback available to know if user quit the host app while the share extension is being presented?

1 Answers1