NEVpnManager.Notifications.ObserveConfigurationChange 方法
定義
重要
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多載
ObserveConfigurationChange(EventHandler<NSNotificationEventArgs>)
常數的 ConfigurationChangeNotification 強型別通知。
public static Foundation.NSObject ObserveConfigurationChange (EventHandler<Foundation.NSNotificationEventArgs> handler);static member ObserveConfigurationChange : EventHandler<Foundation.NSNotificationEventArgs> -> Foundation.NSObject參數
- handler
- EventHandler<NSNotificationEventArgs>
張貼通知時叫用的方法。
傳回
權杖物件，可用來停止接收通知，方法是處置通知或傳遞至 RemoveObservers(IEnumerable<NSObject>)
備註
這個方法可以用來訂閱 ConfigurationChangeNotification 通知。
// Listen to all notifications posted for any object
var token = NEVpnManager.Notifications.ObserveConfigurationChange ((notification) => {
Console.WriteLine ("Observed ConfigurationChangeNotification!");
};
// Listen to all notifications posted for a single object
var token = NEVpnManager.Notifications.ObserveConfigurationChange (objectToObserve, (notification) => {
Console.WriteLine ($"Observed ConfigurationChangeNotification for {nameof (objectToObserve)}!");
};
// Stop listening for notifications
token.Dispose ();
適用於
ObserveConfigurationChange(NSObject, EventHandler<NSNotificationEventArgs>)
常數的 ConfigurationChangeNotification 強型別通知。
public static Foundation.NSObject ObserveConfigurationChange (Foundation.NSObject objectToObserve, EventHandler<Foundation.NSNotificationEventArgs> handler);static member ObserveConfigurationChange : Foundation.NSObject * EventHandler<Foundation.NSNotificationEventArgs> -> Foundation.NSObject參數
- objectToObserve
- NSObject
要觀察的物件。
- handler
- EventHandler<NSNotificationEventArgs>
張貼通知時叫用的方法。
傳回
權杖物件，可用來停止接收通知，方法是處置通知或傳遞至 RemoveObservers(IEnumerable<NSObject>)
備註
這個方法可以用來訂閱 ConfigurationChangeNotification 通知。
// Listen to all notifications posted for any object
var token = NEVpnManager.Notifications.ObserveConfigurationChange ((notification) => {
Console.WriteLine ("Observed ConfigurationChangeNotification!");
};
// Listen to all notifications posted for a single object
var token = NEVpnManager.Notifications.ObserveConfigurationChange (objectToObserve, (notification) => {
Console.WriteLine ($"Observed ConfigurationChangeNotification for {nameof (objectToObserve)}!");
};
// Stop listening for notifications
token.Dispose ();