PdfDocument.DidUnlockNotification 属性

定义

DidUnlock 的通知常量

[Foundation.Advice("Use PdfDocument.Notifications.ObserveDidUnlock helper method instead.")]
[Foundation.Field("PDFDocumentDidUnlockNotification", "PDFKit")]
public static Foundation.NSString DidUnlockNotification { get; }
[Foundation.Advice("Use PdfDocument.Notifications.ObserveDidUnlock helper method instead.")]
[Foundation.Field("PDFDocumentDidUnlockNotification", "Quartz")]
public static Foundation.NSString DidUnlockNotification { get; }
member this.DidUnlockNotification : Foundation.NSString

属性值

NSString 常量 应用作 NSNotificationCenter 的标记。

属性

注解

此常量可用于 NSNotificationCenter 注册此通知的侦听器,开发人员也可以改用强类型通知 ObserveDidUnlock 。 这是 NSString 而不是字符串,因为这些值可以用作某些本机库中的标记,而不是纯粹用于其实际字符串内容。 回调的“notification”参数包含特定于通知类型的额外信息。

// Lambda style
NSNotificationCenter.DefaultCenter.AddObserver (
        PdfDocument.DidUnlockNotification, (notification) => {Console.WriteLine ("Received the notification PdfDocument", notification); }


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

void Setup ()
{
    NSNotificationCenter.DefaultCenter.AddObserver (PdfDocument.DidUnlockNotification, Callback);
}

适用于