开发笔记:当应用程序处于后台状态时，FCM多次推送通知无法正常工作

我使用fcm进行推送通知，我只处理数据有效负载。当应用程序处于前台时，多个通知正常工作，这里我在click_action中使用来自服务器的id值，当我们点击它时将通知移动到相关帖子。但是，当应用程序处于后台/关闭状态时，每当我收到多个通知时，我将点击一个通知，它将转到相关的帖子，但剩下的都没有重定向到相关的帖子，只是从通知中清除。我没有发现为什么会出现这个问题。这是我的代码

public class MyFirebaseMessagingService extends FirebaseMessagingService {
private static final String TAG = "MyFirebaseMsgService";
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
Log.d(TAG, "From: " + remoteMessage.getFrom());
Log.d(TAG, "Message data payload: " + remoteMessage.getData());
sendNotification(remoteMessage.getData().get("title"),remoteMessage.getData().get("body"),remoteMessage.getData().get("click_action"),image);
}
private void sendNotification(String title, String message, String id, String image) {
Log.d("notificationdetails",title+",,,"+message+",,"+id);
Intent intent = null;
int postid = Integer.valueOf(id);
if(id.equals("")|| id==null) {
intent = new Intent(this, SplashActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
}
else{
Constants.PushId = postid;
intent = new Intent(this, DetailActivity.class);
Log.d("mypostid",postid+"");
intent.putExtra("id", postid);
intent.putExtra("backpage","main");
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
}
PendingIntent pendingIntent = PendingIntent.getActivity(this, postid, intent, PendingIntent.FLAG_UPDATE_CURRENT);
Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificatiOnBuilder= new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_launcher_primepost)
.setContentTitle(title)
.setStyle(new NotificationCompat.BigTextStyle().bigText(message))
.setContentText(message)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificatiOnManager=
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
Random random = new Random();
int num = random.nextInt(99999-1000)+1000;
notificationManager.notify(num /* ID of notification */, notificationBuilder.build());
}
}


的Manifest.xml

android:name="com.primepostnews.app.Activities.DetailActivity"
android:screenOrientation="portrait">