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