UIApplication.Notifications.ObserveWillChangeStatusBarOrientation Method
Definition
Important
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Overloads
| Name | Description |
|---|---|
| ObserveWillChangeStatusBarOrientation(EventHandler<UIStatusBarOrientationChangeEventArgs>) |
Strongly typed notification for the WillChangeStatusBarOrientationNotification constant. |
| ObserveWillChangeStatusBarOrientation(NSObject, EventHandler<UIStatusBarOrientationChangeEventArgs>) |
Strongly typed notification for the WillChangeStatusBarOrientationNotification constant. |
ObserveWillChangeStatusBarOrientation(EventHandler<UIStatusBarOrientationChangeEventArgs>)
Strongly typed notification for the WillChangeStatusBarOrientationNotification constant.
public static Foundation.NSObject ObserveWillChangeStatusBarOrientation(EventHandler<UIKit.UIStatusBarOrientationChangeEventArgs> handler);static member ObserveWillChangeStatusBarOrientation : EventHandler<UIKit.UIStatusBarOrientationChangeEventArgs> -> Foundation.NSObjectParameters
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 WillChangeStatusBarOrientationNotification notifications.
// Listen to all notifications posted for any object
var token = UIApplication.Notifications.ObserveWillChangeStatusBarOrientation ((notification) => {
Console.WriteLine ("Observed WillChangeStatusBarOrientationNotification!");
};
// Stop listening for notifications
token.Dispose ();
Applies to
ObserveWillChangeStatusBarOrientation(NSObject, EventHandler<UIStatusBarOrientationChangeEventArgs>)
Strongly typed notification for the WillChangeStatusBarOrientationNotification constant.
public static Foundation.NSObject ObserveWillChangeStatusBarOrientation(Foundation.NSObject objectToObserve, EventHandler<UIKit.UIStatusBarOrientationChangeEventArgs> handler);static member ObserveWillChangeStatusBarOrientation : Foundation.NSObject * EventHandler<UIKit.UIStatusBarOrientationChangeEventArgs> -> Foundation.NSObjectParameters
- objectToObserve
- NSObject
The specific object to observe.
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 WillChangeStatusBarOrientationNotification notifications.
// Listen to all notifications posted for a single object
var token = UIApplication.Notifications.ObserveWillChangeStatusBarOrientation (objectToObserve, (notification) => {
Console.WriteLine ($"Observed WillChangeStatusBarOrientationNotification for {nameof (objectToObserve)}!");
};
// Stop listening for notifications
token.Dispose ();