C# 为什么我只能在android通知中按一次播放/暂停按钮？

我已经为我的媒体应用程序创建了一个通知，允许用户播放/暂停他们的音频。但是现在他们只能按通知中的按钮一次。。我如何获得它，以便用户可以连续点击播放/暂停按钮

我试着在我的活动中做一个新的通知，作为一种刷新信息的方式，但还没有得到多少结果

构建通知

public void Init(DabPlayer Player, bool IntegrateWithLockScreen)
        {
            player = Player;
            var mSession = new MediaSessionCompat(Application.Context, "MusicService");
            mSession.SetFlags(MediaSessionCompat.FlagHandlesMediaButtons | MediaSessionCompat.FlagHandlesTransportControls);
            var controller = mSession.Controller;
            var description = GlobalResources.playerPodcast;

            if (IntegrateWithLockScreen)
            {
                /* SET UP LOCK SCREEN */
                CreateNotificationChannel();

                player.EpisodeDataChanged += (sender, e) =>
                {
                    // Set up an intent so that tapping the notifications returns to this app:
                    Intent intent = new Intent(Application.Context, typeof(MainActivity));
                    Intent playPauseIntent = new Intent(Application.Context, typeof(SecondActivity));
                    // Create a PendingIntent; we're only using one PendingIntent (ID = 0):
                    const int pendingIntentId = 0;
                    const int firstPendingIntentId = 1;
                    PendingIntent firstPendingIntent =
                        PendingIntent.GetActivity(Application.Context, firstPendingIntentId, intent, PendingIntentFlags.OneShot);
                    PendingIntent pendingIntent =
                        PendingIntent.GetActivity(Application.Context, pendingIntentId, playPauseIntent, PendingIntentFlags.OneShot);

                    // Build the notification:
                    var builder = new NotificationCompat.Builder(Application.Context, CHANNEL_ID)
                                  .SetStyle(new Android.Support.V4.Media.App.NotificationCompat.MediaStyle()
                                            .SetMediaSession(mSession.SessionToken)
                                            .SetShowActionsInCompactView(0, 1))
                                  .SetVisibility(NotificationCompat.VisibilityPublic)
                                  .SetContentIntent(firstPendingIntent) // Start up this activity when the user clicks the intent.
                                  .SetDeleteIntent(MediaButtonReceiver.BuildMediaButtonPendingIntent(Application.Context, PlaybackState.ActionStop))
                                  .SetSmallIcon(Resource.Drawable.app_icon) // This is the icon to display
                                  .AddAction(Resource.Drawable.ic_media_pause_dark, "Pause", pendingIntent)
                                  .AddAction(Resource.Drawable.ic_media_play_dark, "Next", pendingIntent)
                                  .SetContentText(GlobalResources.playerPodcast.EpisodeTitle)
                                  .SetContentTitle(GlobalResources.playerPodcast.ChannelTitle);

                    // Finally, publish the notification:
                    var notificationManager = NotificationManagerCompat.From(Application.Context);
                    notificationManager.Notify(NOTIFICATION_ID, builder.Build());                   
                };

                player.EpisodeProgressChanged += (object sender, EventArgs e) =>
                {

                };


            }

然后我的活动看起来像这样

[Activity]
    public class SecondActivity : Activity
    {
        DabPlayer player = GlobalResources.playerPodcast;
        EpisodeViewModel Episode;
        DroidDabNativePlayer droid = new DroidDabNativePlayer();
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            if (player.IsReady)
            {
                if (player.IsPlaying)
                {
                    player.Pause();
                    droid.Init(player, true);
                }
                else
                {
                    player.Play();
                    droid.Init(player, true);
                }
            }
            else
            {
                if (player.Load(Episode.Episode))
                {
                    player.Play();
                    droid.Init(player, true);
                }
                else
                {
                    //DisplayAlert("Episode Unavailable", "The episode you are attempting to play is currently unavailable. Please try again later.", "OK");
                }

            }

            Finish();
        }
    }

我还想按下一个按钮，让它根据状态在显示暂停和播放之间切换，如果有人想给我指出正确的方向

感谢您的帮助！谢谢大家!

带有

OneShot

的悬挂式帐篷只能使用一次

指示此PendingEvent只能使用一次的标志。 如果设置了，则在对其调用send（）后，它将自动取消，并且将来通过它发送的任何尝试都将失败

---

使用不带标志的

pendingent

（允许用户多次按下按钮并发送多个意图），或者在每次请求

pendingent

时使用新id，以便在每次更新通知时按下按钮一次。

什么意思？他们只能按一次播放？第二次会发生什么？刷新通知的结果是什么？它不会响应第二次单击事件。他们第二次点击后什么也没发生。刷新通知后，我无法再次单击按钮。现在有两个按钮在执行相同的操作，只是外观不同，但如果我单击其中一个按钮，我甚至无法单击另一个按钮。在第一次事件之后，它似乎只是扼杀了按钮的交互。它像一个符咒一样工作！非常感谢。