首先，需要在布局文件中定义一个FrameLayout，并在其中添加一个SeekBar和一个ProgressBar。然后，通过RemoteViews将布局文件添加到通知中。

以下是示例代码：

1. 布局文件（notification_layout.xml）

2. RemoteViews方法（createNotification()）

private void createNotification() {
    // 创建RemoteViews
    RemoteViews notificationLayout = new RemoteViews(getPackageName(), R.layout.notification_layout);
    
    // 获取SeekBar和ProgressBar的ID
    int seekBarId = R.id.seek_bar;
    int progressBarId = R.id.progress_bar;
    
    // 设置SeekBar和ProgressBar的更新事件
    notificationLayout.setOnClickPendingIntent(seekBarId, getPendingIntentForSeekBar());
    notificationLayout.setOnClickPendingIntent(progressBarId, getPendingIntentForProgressBar());

    // 创建Notification
    NotificationCompat.Builder builder = new NotificationCompat.Builder(this, CHANNEL_ID)
            .setSmallIcon(R.drawable.ic_launcher_foreground)
            .setContentTitle("Notification Title")
            .setContentText("Notification Text")
            .setPriority(NotificationCompat.PRIORITY_HIGH)
            .setAutoCancel(true)
            .setCustomContentView(notificationLayout)
            .setColor(ContextCompat.getColor(this, R.color.colorPrimary))
            .setOnlyAlertOnce(true);
    
    Notification notification = builder.build();

    // 显示通知
    NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
    notificationManager.notify(NOTIFICATION_ID, notification);
}

其中，getPendingIntentForSeekBar()和getPendingIntentForProgressBar()是两个用于设置