如何使用 UWP 应用程序检测另一个应用程序触发的 windows 10 toast 通知

Question

所以我正在尝试创建一个 UWP 应用程序，它应该能够检测当前是否显示任何 toast 通知，然后在显示时播放音频文件。我正在尝试使用 GetNotificationsAsync 方法来实现此目的，但问题是无论当前是否正在显示 toast 通知，该方法生成的列表始终相同。以下是将触发该过程的按钮中的代码片段，是否需要执行一些额外的步骤？此外，已授予该应用程序在 windows 10.

上通知的权限

private async void Button_Click(object sender, RoutedEventArgs e)
        {
            int a = 0;
            switchStatus = "ON";
            this.Status.Text = switchStatus;

            while (a == 0)
            {
                // Get the listener
                Windows.UI.Notifications.Management.UserNotificationListener listener = Windows.UI.Notifications.Management.UserNotificationListener.Current;

                // And request access to the user's notifications (must be called from UI thread)
                Windows.UI.Notifications.Management.UserNotificationListenerAccessStatus accessStatus = await listener.RequestAccessAsync();

                switch (accessStatus)
                {
                    // This means the user has granted access.
                    case Windows.UI.Notifications.Management.UserNotificationListenerAccessStatus.Allowed:
                        // Get the toast notifications
                        IReadOnlyList<Windows.UI.Notifications.UserNotification> notifs = await listener.GetNotificationsAsync(Windows.UI.Notifications.NotificationKinds.Toast);
                        int b = notifs.Count();
                        
                        if (b==0)
                        {
                            break;
                        }
                        else
                        {
                            try
                            {
                                
                                mediaPlayer.Source = Windows.Media.Core.MediaSource.CreateFromUri(new Uri("ms-appx:///Assets/audio.mp3"));
                                mediaPlayer.AutoPlay = false;
                                mediaPlayer.Play();
                                playing = true;
                                
                                a = 1;
                            }
                            catch (Exception)
                            {

                            }
                        }

                        break;

                    // This means the user has denied access.
                    // Any further calls to RequestAccessAsync will instantly
                    // return Denied. The user must go to the Windows settings
                    // and manually allow access.
                    case Windows.UI.Notifications.Management.UserNotificationListenerAccessStatus.Denied:

                        // Show UI explaining that listener features will not
                        // work until user allows access.
                        break;

                    // This means the user closed the prompt without
                    // selecting either allow or deny. Further calls to
                    // RequestAccessAsync will show the dialog again.
                    case Windows.UI.Notifications.Management.UserNotificationListenerAccessStatus.Unspecified:

                        // Show UI that allows the user to bring up the prompt again
                        break;
                }


            }
            
        }

Answer 1

更新以上内容。该代码似乎在不同的设备中正常工作。编写此代码的测试机最终崩溃，必须重新安装 windows，之后相同的代码现在可以正常工作。所以看起来安装本身有问题，而不是代码。

如何使用 UWP 应用程序检测另一个应用程序触发的 windows 10 toast 通知

How to detect windows 10 toast notification triggered by another app using a UWP app

c#

windows

visual-studio

uwp

toast