編輯

共用方式為

NSValueTransformer.DidChangeAccountsNotification Property

  • Reference

Definition

Namespace:
Foundation
Assembly:
Xamarin.iOS.dll

Notification constant for DidChangeAccounts

[Foundation.Advice("Use NSValueTransformer.Notifications.ObserveDidChangeAccounts helper method instead.")]
[Foundation.Field("NSUbiquitousUserDefaultsDidChangeAccountsNotification", "Foundation")]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 9, 3, ObjCRuntime.PlatformArchitecture.All, null)]
public static Foundation.NSString DidChangeAccountsNotification { [ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 9, 3, ObjCRuntime.PlatformArchitecture.All, null)] get; }
member this.DidChangeAccountsNotification : Foundation.NSString

Property Value

NSString

NSString constant, should be used as a token to NSNotificationCenter.

Attributes
AdviceAttribute FieldAttribute IntroducedAttribute

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 (
        NSValueTransformer.DidChangeAccountsNotification, (notification) => {Console.WriteLine ("Received the notification NSValueTransformer", notification); }


// Method style
void Callback (NSNotification notification)
{
    Console.WriteLine ("Received a notification NSValueTransformer", notification);
}

void Setup ()
{
    NSNotificationCenter.DefaultCenter.AddObserver (NSValueTransformer.DidChangeAccountsNotification, Callback);
}

Applies to