无法在Android Pie中获取通知

Question

使用Firebase控制台发送通知时。我无法在Android P上收到通知。

我购买了一部适用于android pie的新手机。使用FCM发送通知时没有收到通知。

我在android O中遇到通知问题的代码。

public class NotificationHelper extends ContextWrapper {

    private static final String XXXXXXX= "com.release.info.xxxxxx.xxxxxx";
    private static final String XXXXXXXXX= "xxxxxxxx";

    private NotificationManager notificationManager;

    public NotificationHelper(Context base) {
        super(base);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) ;
        createChannel();
    }

    @TargetApi(Build.VERSION_CODES.O)

    private void createChannel() {
        NotificationChannel XXXXXXXXXX= new NotificationChannel(XXXXXXX, XXXXXXXXXXX, NotificationManager.IMPORTANCE_DEFAULT);

        XXXXXXX.enableLights(true);
        XXXXXXX.enableVibration(true);
        XXXXXXX.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);

        getManager().createNotificationChannel(xxxxxxxxChannel);
    }

    public NotificationManager getManager() {
        if (notificationManager == null)
            notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        return notificationManager;
    }

    @TargetApi(Build.VERSION_CODES.O)

    public Notification.Builder getXXXXXXXXNotification (String title,
                                                        String description,
                                                        String url,
    String code,
    String id,
    String actual_price,
    String deal_price,
    String key,
    Uri SoundUri)

    {
       return new Notification.Builder(getApplicationContext(), xxxxxxxxx)
               .setContentText(title)
               .setSmallIcon(R.drawable.app_logo)
               .setSound(SoundUri)
               .setAutoCancel(true);

    }
}