NSExtensionContext.HostDidBecomeActiveNotification Property
Definition
Important
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Notification constant for HostDidBecomeActive
[Foundation.Advice("Use NSExtensionContext.Notifications.ObserveHostDidBecomeActive helper method instead.")]
[Foundation.Field("NSExtensionHostDidBecomeActiveNotification", "Foundation")]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 8, 2, ObjCRuntime.PlatformArchitecture.All, null)]
public static Foundation.NSString HostDidBecomeActiveNotification { [ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 8, 2, ObjCRuntime.PlatformArchitecture.All, null)] get; }member this.HostDidBecomeActiveNotification : Foundation.NSStringProperty Value
NSString constant, should be used as a token to NSNotificationCenter.
- Attributes
Remarks
This constant can be used with the NSNotificationCenter to register a listener for this notification. This is an NSString instead of a string, because these values can be used as tokens in some native libraries instead of being used purely for their actual string content. The 'notification' parameter to the callback contains extra information that is specific to the notification type.
// Lambda style
NSNotificationCenter.DefaultCenter.AddObserver (
NSExtensionContext.HostDidBecomeActiveNotification, (notification) => {Console.WriteLine ("Received the notification NSExtensionContext", notification); }
// Method style
void Callback (NSNotification notification)
{
Console.WriteLine ("Received a notification NSExtensionContext", notification);
}
void Setup ()
{
NSNotificationCenter.DefaultCenter.AddObserver (NSExtensionContext.HostDidBecomeActiveNotification, Callback);
}