دریافت user id در on Signal

با سلام

من در پروژه خودام از on Signal استفاده میکنم هدفم این هست که یه ایدی unic از گوشی بگیرم و بفرستم سمت سرور که سرور با استفاده از اون  notification private بفرسته برام.

حالا تمام سایت های خارجی داکیومت های خود on signal  رو حتی زیر و رو کردم ولی به نتیجه خاصی نرسیدم.

OSPermissionSubscriptionState status = OneSignal.getPermissionSubscriptionState();
String userID = status.getSubscriptionStatus().getUserId();

کد بالا تو داکیومت های خود on signal  هست که یه جا تو stack overflow گفته بود depricat شدست. وقتی تو برنامه هم استفاده میکنی status null  میشه و برنه کرش میکنه حتی تو مسالی که خود سایت on signal  تو githab گذاشته همین مشکل هست.

کد پایین رو هم جاش پیشنهاد کردن که وقتی داخل برنامه میگذارم هیچ call back بر نمیگردونه تو مثال خود on signal این خط ها کامت شده از کامت هم در میارم هیچ اتفاق خاصی نمیفته. نمیدونم شاید برای این که call bak بده جای خاصی باید نوشته بشه یا کد مکملی داره ولی من هر چقدر گشتم چیز خاصی  پیدا نکردم.

لطفا کمکم کنید با تشکر.

OneSignal.idsAvailable(new OneSignal.IdsAvailableHandler() {
   @Override
   public void idsAvailable(String userId, String registrationId) {
      String text = "OneSignal UserID:\n" + userId + "\n\n";

      if (registrationId != null)
         text += "Google Registration Id:\n" + registrationId;
      else
         text += "Google Registration Id:\nCould not subscribe for push";

      TextView textView = (TextView)findViewById(R.id.debug_view);
      textView.setText(text);
   }
});

اررور هم که دریافت میکنم به شکل زیر هستش.

java.lang.NullPointerException: Attempt to invoke virtual method 'com.onesignal.OSSubscriptionState com.onesignal.OSPermissionSubscriptionState.getSubscriptionStatus()' on a null object reference
at project.onsignal.MainActivity2$5.onClick(MainActivity2.java:125)

کد کامل

package project.onsignal;

import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Switch;
import android.widget.TextView;
import android.widget.Toast;

import com.onesignal.OSPermissionObserver;
import com.onesignal.OSPermissionStateChanges;
import com.onesignal.OSPermissionSubscriptionState;
import com.onesignal.OSSubscriptionObserver;
import com.onesignal.OSSubscriptionStateChanges;
import com.onesignal.OneSignal;

import org.json.JSONException;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.Collection;

import farhikhtegan.com.restooran.R;

public class MainActivity2 extends AppCompatActivity implements OSPermissionObserver,OSSubscriptionObserver {
   
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main2);
      OneSignal.addPermissionObserver(this);
      OneSignal.addSubscriptionObserver(this);

      final TextView textView = (TextView) findViewById(R.id.debug_view);
      textView.setText("OneSignal is Ready!");

      // Deprecated, use getPermissionSubscriptionState, addPermissionObserver, or add SubscriptionObserver instead
      OneSignal.idsAvailable(new OneSignal.IdsAvailableHandler() {
         @Override
         public void idsAvailable(String userId, String registrationId) {
            String text = "OneSignal UserID:\n" + userId + "\n\n";

            if (registrationId != null)
               text += "Google Registration Id:\n" + registrationId;
            else
               text += "Google Registration Id:\nCould not subscribe for push";

            TextView textView = (TextView)findViewById(R.id.debug_view);
            textView.setText(text);
         }
      });
      Button onSendTagsButton = (Button) findViewById(R.id.send_tags_button);
      onSendTagsButton.setOnClickListener(new View.OnClickListener() {
         @Override
         public void onClick(View view) {
            JSONObject tags = new JSONObject();
            try {
               tags.put("key1", "value1");
               tags.put("user_name", "Jon");
            } catch (JSONException e) {
               e.printStackTrace();
            }
            OneSignal.sendTags(tags);
            textView.setText("Tags sent!");
         }

      });

      Button onGetTagsButton = (Button) findViewById(R.id.get_tags_button);
      onGetTagsButton.setOnClickListener(new View.OnClickListener() {
         @Override
         public void onClick(View view) {
            final Collection<String> receivedTags = new ArrayList<>();
            OneSignal.getTags(new OneSignal.GetTagsHandler() {
               @Override
               public void tagsAvailable(final JSONObject tags) {
                  Log.d("debug", tags.toString());
                  new Handler(Looper.getMainLooper()).post(new Runnable() {
                     @Override
                     public void run() {
                        receivedTags.add(tags.toString());
                        textView.setText("Tags Received: " + receivedTags);
                     }
                  });
               }
            });
         }
      });

      Button onDeleteOrUpdateTagsButton = (Button) findViewById(R.id.delete_update_tags_button);
      onDeleteOrUpdateTagsButton.setOnClickListener(new View.OnClickListener() {
         @Override
         public void onClick(View view) {
            OneSignal.getTags(new OneSignal.GetTagsHandler() {
               @Override
               public void tagsAvailable(final JSONObject tags) {
                  Log.d("debug", "Current Tags on User: " + tags.toString());
                  OneSignal.deleteTag("key1");
                  OneSignal.sendTag("updated_key", "updated_value");
                  new Handler(Looper.getMainLooper()).post(new Runnable() {
                     @Override
                     public void run() {
                        textView.setText("Updated Tags: " + tags);
                     }
                  });
               }
            });
         }
      });

      Button onGetIDsAvailableButton = (Button) findViewById(R.id.get_ids_available_button);
      onGetIDsAvailableButton.setOnClickListener(new View.OnClickListener() {
         @Override
         public void onClick(View view) {
            OSPermissionSubscriptionState status = OneSignal.getPermissionSubscriptionState();
/*            boolean isEnabled = status.getPermissionStatus().getEnabled();
            boolean isSubscribed = status.getSubscriptionStatus().getSubscribed();
            boolean subscriptionSetting = status.getSubscriptionStatus().getUserSubscriptionSetting();*/

            String userID = status.getSubscriptionStatus().getUserId();
            String pushToken = status.getSubscriptionStatus().getPushToken();

            textView.setText("PlayerID: " + userID + "\nPushToken: " + pushToken);
         }
      });

      Button onPromptLocationButton = (Button)(findViewById(R.id.prompt_location_button));
      onPromptLocationButton.setOnClickListener(new View.OnClickListener(){
         @Override
         public void onClick(View view) {
            OneSignal.promptLocation();
            /*
            Make sure you have one of the following permissions in your AndroidManifest.xml
            <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
            <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
             */
         }
      });

      Button onSendNotification1 = (Button) findViewById(R.id.send_notification_button);
      onSendNotification1.setOnClickListener(new View.OnClickListener() {
         @Override
         public void onClick(View view) {
            OSPermissionSubscriptionState status = OneSignal.getPermissionSubscriptionState();
            String userId = status.getSubscriptionStatus().getUserId();
            boolean isSubscribed = status.getSubscriptionStatus().getSubscribed();

            textView.setText("Subscription Status, is subscribed:" + isSubscribed);

            if (!isSubscribed)
               return;

            try {
               JSONObject notificationContent = new JSONObject("{'contents': {'en': 'The notification message or body'}," +
                       "'include_player_ids': ['" + userId + "'], " +
                       "'headings': {'en': 'Notification Title'}, " +
                       "'big_picture': 'http://i.imgur.com/DKw1J2F.gif'}");
               OneSignal.postNotification(notificationContent, null);
            } catch (JSONException e) {
               e.printStackTrace();
            }
         }
      });

      Button onSendNotification2 = (Button) findViewById(R.id.send_notification_button2);
      onSendNotification2.setOnClickListener(new View.OnClickListener() {
         @Override
         public void onClick(View view) {
            OSPermissionSubscriptionState status = OneSignal.getPermissionSubscriptionState();
            String userID = status.getSubscriptionStatus().getUserId();
            boolean isSubscribed = status.getSubscriptionStatus().getSubscribed();

            textView.setText("Subscription Status, is subscribed:" + isSubscribed);

            if (!isSubscribed)
               return;

            try {
               OneSignal.postNotification(new JSONObject("{'contents': {'en':'Tag substitution value for key1 = {{key1}}'}, " +
                           "'include_player_ids': ['" + userID + "'], " +
                           "'headings': {'en': 'Tag sub Title HI {{user_name}}'}, " +
                           "'data': {'openURL': 'https://imgur.com'}," +
                           "'buttons':[{'id': 'id1', 'text': 'Go to GreenActivity'}, {'id':'id2', 'text': 'Go to MainActivity2'}]}"),
                     new OneSignal.PostNotificationResponseHandler() {
                        @Override
                        public void onSuccess(JSONObject response) {
                           Log.i("OneSignalExample", "postNotification Success: " + response);
                        }

                        @Override
                        public void onFailure(JSONObject response) {
                           Log.e("OneSignalExample", "postNotification Failure: " + response);
                        }
                     });
            } catch (JSONException e) {
               e.printStackTrace();
            }

         }
      });

      final Switch onSetSubscriptionSwitch = (Switch) findViewById(R.id.set_subscription_switch);
      onSetSubscriptionSwitch.setOnClickListener(new View.OnClickListener() {
         @Override
         public void onClick(View view) {
            if (onSetSubscriptionSwitch.isChecked()) {
               OneSignal.setSubscription(true);
               textView.setText("User CAN receive notifications if turned on in Phone Settings");
            }
            else {
               OneSignal.setSubscription(false);
               textView.setText("User CANNOT receive notifications, even if they are turned on in Phone Settings");
            }
         }
      });
   }

   @Override
   public void onOSPermissionChanged(OSPermissionStateChanges stateChanges) {
      if (stateChanges.getFrom().getEnabled() &&
        !stateChanges.getTo().getEnabled()) {
         new AlertDialog.Builder(this)
           .setMessage("Notifications Disabled!")
           .show();
      }

      Log.i("Debug", "onOSPermissionChanged: " + stateChanges);
   }

   @Override
   public void onOSSubscriptionChanged(OSSubscriptionStateChanges stateChanges) {
      if (!stateChanges.getFrom().getSubscribed() &&
        stateChanges.getTo().getSubscribed()) {
         new AlertDialog.Builder(this)
           .setMessage("You've successfully subscribed to push notifications!")
           .show();
         // get player ID
        String s= stateChanges.getTo().getUserId();
         Toast.makeText(this, "user id:"+s, Toast.LENGTH_SHORT).show();
      }

      Log.i("Debug", "onOSPermissionChanged: " + stateChanges);
   }
}