小米的Firebase Messaging Service无法执行点击操作

Question

点击操作不适用于我的Xiamoi设备（牛轧糖），但可以与三星（棒棒糖）一起正常使用

Firebasemessaging服务的代码如下所示

 public class FirebaseMessagingService extends 
  com.google.firebase.messaging.FirebaseMessagingService {

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
    super.onMessageReceived(remoteMessage);

    String notification_title = remoteMessage.getNotification().getTitle();
    String notification_message = remoteMessage.getNotification().getBody();
    long[] v = {500,1000};

    NotificationCompat.Builder mBuilder ;
    Uri uri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
    mBuilder = new NotificationCompat.Builder(this, "notify")
                        .setSmallIcon(R.mipmap.ic_launcher)
                        .setContentTitle(notification_title)
                        .setContentText(notification_message)
                        .setSound(uri);

    mBuilder.setVibrate(v);
    Intent resultIntent = new Intent("MAINACTIVITY");


    PendingIntent resultPendingIntent =
            PendingIntent.getActivity(
                    this,
                    0,
                    resultIntent,
                    PendingIntent.FLAG_UPDATE_CURRENT
            );

    mBuilder.setContentIntent(resultPendingIntent);




    int mNotificationId = (int) System.currentTimeMillis();

    NotificationManager mNotifyMgr =
            (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

    mNotifyMgr.notify(mNotificationId, mBuilder.build());


}
}

我在Samsung上进行了测试，效果很好，但对于Xiamoi而言，单击操作没有响应。我不知道错误在哪里。