- handler
- Method to invoke when the notification is posted.
The returned NSObject represents the registered notification. Either call Dispose on the object to stop receiving notifications, or pass it to Foundation.NSNotificationCenter.RemoveObserver
The following example shows how you can use this method in your code
c# Example
//
// Lambda style
//
// listening
notification = UIApplication.Notifications.ObserveContentSizeCategoryChanged ((sender, args) => {
/* Access strongly typed args */
Console.WriteLine ("Notification: {0}", args.Notification);
Console.WriteLine ("WeakNewValue", args.WeakNewValue);
});
// To stop listening:
notification.Dispose ();
//
//Method style
//
NSObject notification;
void Callback (object sender, UIKit.UIContentSizeCategoryChangedEventArgs args)
{
// Access strongly typed args
Console.WriteLine ("Notification: {0}", args.Notification);
Console.WriteLine ("WeakNewValue", args.WeakNewValue);
}
void Setup ()
{
notification = UIApplication.Notifications.ObserveContentSizeCategoryChanged (Callback);
}
void Teardown ()
{
notification.Dispose ();
}