Posted by the terminate(_:) method to indicate that the app will terminate.
SDK
Framework
class let willTerminateNotification: NSNotification.Name
Posted only if the delegate method application returns true. The notification object is shared. This notification doesn’t contain a user dictionary.
class let didPosted immediately after the app becomes active.
class let didPosted when the configuration of the displays attached to the computer is changed.
class let didPosted at the end of the finish method to indicate that the app has completed launching and is ready to run.
class let didPosted at the end of the hide(_:) method to indicate that the app is now hidden.
class let didPosted immediately after the app gives up its active status to another app.
class let didPosted at the end of the unhide method to indicate that the app is now visible.
class let didPosted at the end of the update method to indicate that the app has finished updating its windows.
class let willPosted immediately before the app becomes active.
class let willPosted at the start of the finish method to indicate that the app has completed its initialization process and is about to finish launching.
class let willPosted at the start of the hide(_:) method to indicate that the app is about to be hidden.
class let willPosted immediately before the app gives up its active status to another app.
class let willPosted at the start of the unhide method to indicate that the app is about to become visible.
class let willPosted at the start of the update method to indicate that the app is about to update its windows.
class let didPosted when the app has finished restoring windows.
class let didPosted when the app’s occlusion state changes.