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UIApplication.Notifications.ObserveWillTerminate Method

Definition

Overloads

ObserveWillTerminate(EventHandler<NSNotificationEventArgs>)

Strongly typed notification for the WillTerminateNotification constant.

public static Foundation.NSObject ObserveWillTerminate(EventHandler<Foundation.NSNotificationEventArgs> handler);
static member ObserveWillTerminate : EventHandler<Foundation.NSNotificationEventArgs> -> Foundation.NSObject

Parameters

handler
EventHandler<NSNotificationEventArgs>

The handler that responds to the notification when it occurs.

Returns

Token object that can be used to stop receiving notifications by either disposing it or passing it to RemoveObservers(IEnumerable<NSObject>).

Remarks

This method can be used to subscribe to WillTerminateNotification notifications.

// Listen to all notifications posted for any object
var token = UIApplication.Notifications.ObserveWillTerminate ((notification) => {
  Console.WriteLine ("Observed WillTerminateNotification!");
};

// Stop listening for notifications
token.Dispose ();

Applies to

ObserveWillTerminate(NSObject, EventHandler<NSNotificationEventArgs>)

Strongly typed notification for the WillTerminateNotification constant.

public static Foundation.NSObject ObserveWillTerminate(Foundation.NSObject objectToObserve, EventHandler<Foundation.NSNotificationEventArgs> handler);
static member ObserveWillTerminate : Foundation.NSObject * EventHandler<Foundation.NSNotificationEventArgs> -> Foundation.NSObject

Parameters

objectToObserve
NSObject

The specific object to observe.

handler
EventHandler<NSNotificationEventArgs>

The handler that responds to the notification when it occurs.

Returns

Token object that can be used to stop receiving notifications by either disposing it or passing it to RemoveObservers(IEnumerable<NSObject>).

Remarks

This method can be used to subscribe to WillTerminateNotification notifications.

// Listen to all notifications posted for a single object
var token = UIApplication.Notifications.ObserveWillTerminate (objectToObserve, (notification) => {
  Console.WriteLine ($"Observed WillTerminateNotification for {nameof (objectToObserve)}!");
};

// Stop listening for notifications
token.Dispose ();

Applies to