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NSBundleResourceRequest.Notifications.ObserveLowDiskSpace 方法

定义

重载

ObserveLowDiskSpace(EventHandler<NSNotificationEventArgs>)

常量的强类型通知 LowDiskSpaceNotification

ObserveLowDiskSpace(NSObject, EventHandler<NSNotificationEventArgs>)

常量的强类型通知 LowDiskSpaceNotification

ObserveLowDiskSpace(EventHandler<NSNotificationEventArgs>)

常量的强类型通知 LowDiskSpaceNotification

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

参数

handler
EventHandler<NSNotificationEventArgs>

发布通知时调用的方法。

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 LowDiskSpaceNotification 通知。

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

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

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

适用于

ObserveLowDiskSpace(NSObject, EventHandler<NSNotificationEventArgs>)

常量的强类型通知 LowDiskSpaceNotification

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

参数

objectToObserve
NSObject

要观察的对象。

handler
EventHandler<NSNotificationEventArgs>

发布通知时调用的方法。

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 LowDiskSpaceNotification 通知。

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

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

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

适用于