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AVAudioSession.Notifications.ObserveOutputMuteStateChange Method

Definition

Overloads

ObserveOutputMuteStateChange(NSObject, EventHandler<OutputMuteStateChangeEventArgs>)

Strongly typed notification for the OutputMuteStateChangeNotification constant.

public static Foundation.NSObject ObserveOutputMuteStateChange(Foundation.NSObject objectToObserve, EventHandler<AVFoundation.OutputMuteStateChangeEventArgs> handler);
static member ObserveOutputMuteStateChange : Foundation.NSObject * EventHandler<AVFoundation.OutputMuteStateChangeEventArgs> -> Foundation.NSObject

Parameters

objectToObserve
NSObject

The specific object to observe.

handler
EventHandler<OutputMuteStateChangeEventArgs>

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 OutputMuteStateChangeNotification notifications.

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

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

Applies to

ObserveOutputMuteStateChange(EventHandler<OutputMuteStateChangeEventArgs>)

Strongly typed notification for the OutputMuteStateChangeNotification constant.

public static Foundation.NSObject ObserveOutputMuteStateChange(EventHandler<AVFoundation.OutputMuteStateChangeEventArgs> handler);
static member ObserveOutputMuteStateChange : EventHandler<AVFoundation.OutputMuteStateChangeEventArgs> -> Foundation.NSObject

Parameters

handler
EventHandler<OutputMuteStateChangeEventArgs>

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 OutputMuteStateChangeNotification notifications.

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

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

Applies to