AVAsset.Notifications.ObserveDurationDidChange Method

Definition

Overloads

ObserveDurationDidChange(EventHandler<NSNotificationEventArgs>)

Strongly typed notification for the DurationDidChangeNotification constant.

ObserveDurationDidChange(NSObject, EventHandler<NSNotificationEventArgs>)

Strongly typed notification for the DurationDidChangeNotification constant.

ObserveDurationDidChange(EventHandler<NSNotificationEventArgs>)

Strongly typed notification for the DurationDidChangeNotification constant.

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

Parameters

handler
EventHandler<NSNotificationEventArgs>

The handler that responds to the notification when it occurs.

Returns

NSObject

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 DurationDidChangeNotification notifications.


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

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

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

ObserveDurationDidChange(NSObject, EventHandler<NSNotificationEventArgs>)

Strongly typed notification for the DurationDidChangeNotification constant.

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

NSObject

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 DurationDidChangeNotification notifications.


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

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

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

Applies to