UIView.Notifications.ObserveAssistiveTouchStatusDidChange Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Overloads
| ObserveAssistiveTouchStatusDidChange(EventHandler<NSNotificationEventArgs>) |
Strongly typed notification for the AssistiveTouchStatusDidChangeNotification constant. |
| ObserveAssistiveTouchStatusDidChange(NSObject, EventHandler<NSNotificationEventArgs>) |
Strongly typed notification for the AssistiveTouchStatusDidChangeNotification constant. |
ObserveAssistiveTouchStatusDidChange(EventHandler<NSNotificationEventArgs>)
Strongly typed notification for the AssistiveTouchStatusDidChangeNotification constant.
public static Foundation.NSObject ObserveAssistiveTouchStatusDidChange (EventHandler<Foundation.NSNotificationEventArgs> handler);static member ObserveAssistiveTouchStatusDidChange : EventHandler<Foundation.NSNotificationEventArgs> -> Foundation.NSObjectParameters
- handler
- EventHandler<NSNotificationEventArgs>
Method to invoke when the notification is posted.
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 for AssistiveTouchStatusDidChangeNotification notifications.
// Listen to all notifications posted for any object
var token = UIView.Notifications.ObserveAssistiveTouchStatusDidChange ((notification) => {
Console.WriteLine ("Observed AssistiveTouchStatusDidChangeNotification!");
};
// Listen to all notifications posted for a single object
var token = UIView.Notifications.ObserveAssistiveTouchStatusDidChange (objectToObserve, (notification) => {
Console.WriteLine ($"Observed AssistiveTouchStatusDidChangeNotification for {nameof (objectToObserve)}!");
};
// Stop listening for notifications
token.Dispose ();
Applies to
ObserveAssistiveTouchStatusDidChange(NSObject, EventHandler<NSNotificationEventArgs>)
Strongly typed notification for the AssistiveTouchStatusDidChangeNotification constant.
public static Foundation.NSObject ObserveAssistiveTouchStatusDidChange (Foundation.NSObject objectToObserve, EventHandler<Foundation.NSNotificationEventArgs> handler);static member ObserveAssistiveTouchStatusDidChange : Foundation.NSObject * EventHandler<Foundation.NSNotificationEventArgs> -> Foundation.NSObjectParameters
- objectToObserve
- NSObject
The object to observe.
- handler
- EventHandler<NSNotificationEventArgs>
Method to invoke when the notification is posted.
Returns
Token object that can be used to stop receiving notifications by either disposing it or passing it to RemoveObservers(IEnumerable<NSObject>)
Remarks
This method can be used to subscribe for AssistiveTouchStatusDidChangeNotification notifications.
// Listen to all notifications posted for any object
var token = UIView.Notifications.ObserveAssistiveTouchStatusDidChange ((notification) => {
Console.WriteLine ("Observed AssistiveTouchStatusDidChangeNotification!");
};
// Listen to all notifications posted for a single object
var token = UIView.Notifications.ObserveAssistiveTouchStatusDidChange (objectToObserve, (notification) => {
Console.WriteLine ($"Observed AssistiveTouchStatusDidChangeNotification for {nameof (objectToObserve)}!");
};
// Stop listening for notifications
token.Dispose ();