AVSampleBufferAudioRenderer.AudioRendererWasFlushedAutomaticallyNotification 屬性

定義

命名空間:

AVFoundation

組件:

Xamarin.iOS.dll

AudioRendererWasFlushedAutomatically 的通知常數

[Foundation.Advice("Use AVSampleBufferAudioRenderer.Notifications.ObserveAudioRendererWasFlushedAutomatically helper method instead.")]
[Foundation.Field("AVSampleBufferAudioRendererWasFlushedAutomaticallyNotification", "AVFoundation")]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.TvOS, 11, 0, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.MacOSX, 10, 13, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 11, 0, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Unavailable(ObjCRuntime.PlatformName.WatchOS, ObjCRuntime.PlatformArchitecture.All, null)]
public static Foundation.NSString AudioRendererWasFlushedAutomaticallyNotification { [ObjCRuntime.Introduced(ObjCRuntime.PlatformName.TvOS, 11, 0, ObjCRuntime.PlatformArchitecture.All, null)] [ObjCRuntime.Introduced(ObjCRuntime.PlatformName.MacOSX, 10, 13, ObjCRuntime.PlatformArchitecture.All, null)] [ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 11, 0, ObjCRuntime.PlatformArchitecture.All, null)] [ObjCRuntime.Unavailable(ObjCRuntime.PlatformName.WatchOS, ObjCRuntime.PlatformArchitecture.All, null)] get; }

member this.AudioRendererWasFlushedAutomaticallyNotification : Foundation.NSString

屬性值

NSString

NSString 常數應作為 NSNotificationCenter 的權杖使用。

屬性

AdviceAttribute FieldAttribute IntroducedAttribute UnavailableAttribute

備註

這個常數可以與 搭配 NSNotificationCenter 使用，以註冊此通知的接聽程式。 這是 NSString 而不是字串，因為這些值可以當做某些原生程式庫中的標記使用，而不是單純用於其實際字串內容。 回呼的 'notification' 參數包含通知類型特有的額外資訊。

若要訂閱此通知，開發人員可以使用方便 AVSampleBufferAudioRenderer.Notifications 的 。 ObserveAudioRendererWasFlushedAutomatically 方法可提供通知參數的強型別存取。

下列範例示範如何使用強型別的 Notifications 類別，將猜測從通知中的可用屬性中取出：

//
// Lambda style
//

// listening
notification = AVSampleBufferAudioRenderer.Notifications.ObserveAudioRendererWasFlushedAutomatically ((sender, args) => {
    /* Access strongly typed args */
    Console.WriteLine ("Notification: {0}", args.Notification);

    Console.WriteLine ("_AudioRendererFlushTime", args._AudioRendererFlushTime);
});

// To stop listening:
notification.Dispose ();

//
// Method style
//
NSObject notification;
void Callback (object sender, AVFoundation.AudioRendererWasFlushedAutomaticallyEventArgs args)
{
    // Access strongly typed args
    Console.WriteLine ("Notification: {0}", args.Notification);

    Console.WriteLine ("_AudioRendererFlushTime", args._AudioRendererFlushTime);
}

void Setup ()
{
    notification = AVSampleBufferAudioRenderer.Notifications.ObserveAudioRendererWasFlushedAutomatically (Callback);
}

void Teardown ()
{
    notification.Dispose ();
}

下列範例示範如何搭配 DefaultCenter API 使用通知：

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


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

void Setup ()
{
    NSNotificationCenter.DefaultCenter.AddObserver (AVSampleBufferAudioRenderer.AudioRendererWasFlushedAutomaticallyNotification, Callback);
}