NEVpnManager.Notifications.ObserveConfigurationChange 方法

定义

重载

ObserveConfigurationChange(EventHandler<NSNotificationEventArgs>)

常量的强类型通知 ConfigurationChangeNotification

ObserveConfigurationChange(NSObject, EventHandler<NSNotificationEventArgs>)

常量的强类型通知 ConfigurationChangeNotification

ObserveConfigurationChange(EventHandler<NSNotificationEventArgs>)

常量的强类型通知 ConfigurationChangeNotification

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

适用于

ObserveConfigurationChange(NSObject, EventHandler<NSNotificationEventArgs>)

常量的强类型通知 ConfigurationChangeNotification

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

适用于