AVAsset.Notifications.ObserveWasDefragmented 方法

定义

重载

ObserveWasDefragmented(EventHandler<NSNotificationEventArgs>)

常量的强类型通知 WasDefragmentedNotification

ObserveWasDefragmented(NSObject, EventHandler<NSNotificationEventArgs>)

常量的强类型通知 WasDefragmentedNotification

ObserveWasDefragmented(EventHandler<NSNotificationEventArgs>)

常量的强类型通知 WasDefragmentedNotification

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

参数

返回

令牌对象,可用于停止接收通知,方法是释放通知或将其传递给 RemoveObservers(IEnumerable<NSObject>)

注解

此方法可用于订阅 WasDefragmentedNotification 通知。

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

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

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

适用于

ObserveWasDefragmented(NSObject, EventHandler<NSNotificationEventArgs>)

常量的强类型通知 WasDefragmentedNotification

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

参数

objectToObserve
NSObject

返回

令牌对象,可用于停止接收通知,方法是释放通知或将其传递给 RemoveObservers(IEnumerable<NSObject>)

注解

此方法可用于订阅 WasDefragmentedNotification 通知。

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

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

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

适用于