NullPointerException - Не удалось запустить активность

При попытке запуска приложения я получил следующее сообщение от logcat. По сути, я пытаюсь получить список информации из синтаксического анализа, используя запрос. Код кажется прекрасным, поэтому я не слишком уверен, как решить эту проблему.NullPointerException - Не удалось запустить активность

Logcat Сообщение

08-25 05:40:03.605: E/AndroidRuntime(7112): FATAL EXCEPTION: main 
08-25 05:40:03.605: E/AndroidRuntime(7112): Process: com.dooba.beta, PID: 7112 
08-25 05:40:03.605: E/AndroidRuntime(7112): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.dooba.beta/com.dooba.beta.usermatch}: java.lang.NullPointerException 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.app.ActivityThread.access$800(ActivityThread.java:135) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.os.Handler.dispatchMessage(Handler.java:102) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.os.Looper.loop(Looper.java:136) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.app.ActivityThread.main(ActivityThread.java:5017) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at java.lang.reflect.Method.invokeNative(Native Method) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at java.lang.reflect.Method.invoke(Method.java:515) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at dalvik.system.NativeStart.main(Native Method) 
08-25 05:40:03.605: E/AndroidRuntime(7112): Caused by: java.lang.NullPointerException 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at com.dooba.beta.Fragment1.<init>(Fragment1.java:77) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at java.lang.Class.newInstanceImpl(Native Method) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at java.lang.Class.newInstance(Class.java:1208) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.support.v4.app.Fragment.instantiate(Fragment.java:402) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.support.v4.app.Fragment.instantiate(Fragment.java:377) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at com.dooba.beta.usermatch.initialisePaging(usermatch.java:31) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at com.dooba.beta.usermatch.onCreate(usermatch.java:24) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.app.Activity.performCreate(Activity.java:5231) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  ... 11 more 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at java.lang.reflect.Method.invoke(Method.java:515) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at dalvik.system.NativeStart.main(Native Method) 
08-25 05:40:03.605: E/AndroidRuntime(7112): Caused by: java.lang.NullPointerException 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at com.dooba.beta.Fragment1.<init>(Fragment1.java:77) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at java.lang.Class.newInstanceImpl(Native Method) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at java.lang.Class.newInstance(Class.java:1208) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.support.v4.app.Fragment.instantiate(Fragment.java:402) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.support.v4.app.Fragment.instantiate(Fragment.java:377) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at com.dooba.beta.usermatch.initialisePaging(usermatch.java:31) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at com.dooba.beta.usermatch.onCreate(usermatch.java:24) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.app.Activity.performCreate(Activity.java:5231) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159) 
08-25 05:40:03.605: E/AndroidRuntime(7112):  ... 11 more

часть активности Код

query1.findInBackground(new FindCallback<ParseUser>() { 
      @Override 
      public void done(List<ParseUser> objects,ParseException e) { 

       for(int i=0;i<objects.size();i++){ 
        // Do whatever you need to extract object from "users" 
        ParseQuery<ParseObject> query = ParseQuery.getQuery("User"); 
        query.whereNotEqualTo("objectId", ParseUser.getCurrentUser() 
          .getObjectId()); 
        // users with Gender = currentUser.Looking_Gender 
        query.whereEqualTo("Gender", userLookingGender); 
        // users with Looking_Gender = currentUser.Gender 
        query.whereEqualTo("Looking_Gender", userGender); 
        query.setLimit(1); 
        query.whereEqualTo("ActivityName", activityName); 
        // query.whereGreaterThanOrEqualTo("Age", minimumAge); 
        // query.whereLessThanOrEqualTo("Age", maximumAge); 

        mUserNameRetrieved = (TextView) getActivity().findViewById(R.id.userlistname); 

        mUserNameRetrieved.setText(objects.get(i).get("Name").toString()); 

        final String userRetrieveName = mUserNameRetrieved.getText().toString(); 

        Button newPage = (Button)getView().findViewById(R.id.btnMatchConfirm); 
        newPage.setOnClickListener(new View.OnClickListener() { 

         @Override 
         public void onClick(View v) { 
          ParseUser currentUser = ParseUser.getCurrentUser(); 

          currentUser.put("UserMatchName", userRetrieveName); 
          Intent intent = new Intent(getActivity(), matchOptionActivity.class); 
          startActivity(intent); 
         } 
        }); 


       } 
    }//for loop 
      });

Обновление

Обновление 2

Обновление 3

08-25 14:20:17.143: E/AndroidRuntime(8520): FATAL EXCEPTION: main 
08-25 14:20:17.143: E/AndroidRuntime(8520): Process: com.dooba.beta, PID: 8520 
08-25 14:20:17.143: E/AndroidRuntime(8520): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.dooba.beta/com.dooba.beta.usermatch}: java.lang.NullPointerException 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at android.app.ActivityThread.access$800(ActivityThread.java:135) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at android.os.Handler.dispatchMessage(Handler.java:102) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at android.os.Looper.loop(Looper.java:136) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at android.app.ActivityThread.main(ActivityThread.java:5017) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at java.lang.reflect.Method.invokeNative(Native Method) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at java.lang.reflect.Method.invoke(Method.java:515) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at dalvik.system.NativeStart.main(Native Method) 
08-25 14:20:17.143: E/AndroidRuntime(8520): Caused by: java.lang.NullPointerException 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at com.dooba.beta.Fragment1.<init>(Fragment1.java:78) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at java.lang.Class.newInstanceImpl(Native Method) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at java.lang.Class.newInstance(Class.java:1208) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at android.support.v4.app.Fragment.instantiate(Fragment.java:402) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at android.support.v4.app.Fragment.instantiate(Fragment.java:377) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at com.dooba.beta.usermatch.initialisePaging(usermatch.java:31) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at com.dooba.beta.usermatch.onCreate(usermatch.java:24) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at android.app.Activity.performCreate(Activity.java:5231) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159) 
08-25 14:20:17.143: E/AndroidRuntime(8520):  ... 11 more

Update 3 Код

public class Fragment1 extends Fragment { 

    public interface Constants { 
     String LOG = "com.dooba.beta"; 
    } 

    private String currentUserId; 
    private ArrayAdapter<String> namesArrayAdapter; 
    private ArrayList<String> names; 
    private ArrayList<String> age; 
    private ArrayList<String> headline; 
    private ArrayList<String> activityname; 

    protected TextView mUserRetrieved; 
    protected TextView mUserActivityNameRetrieved; 
    protected TextView mUserAgeRetrieved; 
    protected TextView mUserHeadlineRetrieved; 



    private ArrayList<Images> alProfilePicture; 
    private ListView usersListView; 
    private Button logoutButton; 
    String userGender = ParseUser.getCurrentUser().getString("Gender"); 
    String activityName = ParseUser.getCurrentUser().getString("ActivityName"); 
    Number maxDistance = ParseUser.getCurrentUser().getNumber(
      "Maximum_Distance"); 
    String userLookingGender = ParseUser.getCurrentUser().getString(
      "Looking_Gender"); 
    Number minimumAge = ParseUser.getCurrentUser().getNumber("Minimum_Age"); 
    Number maximumAge = ParseUser.getCurrentUser().getNumber("Maximum_Age"); 
    Number userage = ParseUser.getCurrentUser().getNumber("Age"); 
    TextView mUserNameRetrieved = (TextView) getActivity().findViewById(R.id.userlistname); 


    @Override 
    public void onActivityCreated(Bundle savedInstanceState) { 
     super.onActivityCreated(savedInstanceState); 
     final String userRetrieveName = mUserNameRetrieved.getText().toString(); 
     Button newPage = (Button)getView().findViewById(R.id.btnMatchConfirm); 
     newPage.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       ParseUser currentUser = ParseUser.getCurrentUser(); 

       currentUser.put("UserMatchName", userRetrieveName); 
       Intent intent = new Intent(getActivity(), matchOptionActivity.class); 
       startActivity(intent); 
      } 
     }); 



     setConversationsList(); 

    } 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     View view = inflater.inflate(R.layout.fragment1_layout, container, 
       false); 






     return view; 
    } 

    private void setConversationsList() { 
     currentUserId = ParseUser.getCurrentUser().getObjectId(); 
     names = new ArrayList<String>(); 
     age = new ArrayList<String>(); 
     headline = new ArrayList<String>(); 
     activityname = new ArrayList<String>(); 

     alProfilePicture = new ArrayList<Images>(); 

     // String userActivitySelectionName = null; 

     ParseQuery<ParseUser> query = ParseUser.getQuery(); 

     // query.whereEqualTo("ActivityName",userActivitySelectionName); 

     query.whereNotEqualTo("objectId", ParseUser.getCurrentUser() 
       .getObjectId()); 
     // users with Gender = currentUser.Looking_Gender 
     query.whereEqualTo("Gender", userLookingGender); 
     // users with Looking_Gender = currentUser.Gender 
     query.whereEqualTo("Looking_Gender", userGender); 
     query.setLimit(1); 
     query.whereEqualTo("ActivityName", activityName); 
     // query.whereGreaterThanOrEqualTo("Age", minimumAge); 
     // query.whereLessThanOrEqualTo("Age", maximumAge); 
     query.orderByDescending("Name"); 


     ParseQuery<ParseUser> query1 = ParseUser.getQuery(); 

     // query.whereEqualTo("ActivityName",userActivitySelectionName); 

     query1.whereNotEqualTo("objectId", ParseUser.getCurrentUser() 
       .getObjectId()); 
     // users with Gender = currentUser.Looking_Gender 
     query1.whereEqualTo("Gender", userLookingGender); 
     // users with Looking_Gender = currentUser.Gender 
     query1.whereEqualTo("Looking_Gender", userGender); 
     query1.setLimit(1); 
     query1.whereEqualTo("ActivityName", activityName); 
     // query.whereGreaterThanOrEqualTo("Age", minimumAge); 
     // query.whereLessThanOrEqualTo("Age", maximumAge); 
     query1.orderByDescending("Name"); 

     ParseQuery<ParseUser> query11 = ParseUser.getQuery(); 

     // query.whereEqualTo("ActivityName",userActivitySelectionName); 

     query11.whereNotEqualTo("objectId", ParseUser.getCurrentUser() 
       .getObjectId()); 
     // users with Gender = currentUser.Looking_Gender 
     query11.whereEqualTo("Gender", userLookingGender); 
     // users with Looking_Gender = currentUser.Gender 
     query11.whereEqualTo("Looking_Gender", userGender); 
     query11.setLimit(1); 
     query11.whereEqualTo("ActivityName", activityName); 
     // query.whereGreaterThanOrEqualTo("Age", minimumAge); 
     // query.whereLessThanOrEqualTo("Age", maximumAge); 
     query11.orderByDescending("Name"); 

     ParseQuery<ParseUser> query4 = ParseUser.getQuery(); 

     // query.whereEqualTo("ActivityName",userActivitySelectionName); 

     query4.whereNotEqualTo("objectId", ParseUser.getCurrentUser() 
       .getObjectId()); 
     // users with Gender = currentUser.Looking_Gender 
     query4.whereEqualTo("Gender", userLookingGender); 
     // users with Looking_Gender = currentUser.Gender 
     query4.whereEqualTo("Looking_Gender", userGender); 
     query4.setLimit(1); 
     query4.whereEqualTo("ActivityName", activityName); 
     // query.whereGreaterThanOrEqualTo("Age", minimumAge); 
     // query.whereLessThanOrEqualTo("Age", 

     ParseQuery<ParseUser> query5 = ParseUser.getQuery(); 

     // query.whereEqualTo("ActivityName",userActivitySelectionName); 

     query5.whereNotEqualTo("objectId", ParseUser.getCurrentUser() 
       .getObjectId()); 
     // users with Gender = currentUser.Looking_Gender 
     query5.whereEqualTo("Gender", userLookingGender); 
     // users with Looking_Gender = currentUser.Gender 
     query5.whereEqualTo("Looking_Gender", userGender); 
     query5.setLimit(1); 
     query5.whereEqualTo("ActivityName", activityName); 
     // query.whereGreaterThanOrEqualTo("Age", minimumAge); 
     // query.whereLessThanOrEqualTo("Age", 

     Log.d(Constants.LOG, ""); 




     query.findInBackground(new FindCallback<ParseUser>() { 

      @Override 
      public void done(List<ParseUser> objects,ParseException e) { 

       for(int i=0;i<objects.size();i++){ 
        // Do whatever you need to extract object from "users" 
        ParseQuery<ParseObject> query = ParseQuery.getQuery("User"); 
        query.whereNotEqualTo("objectId", ParseUser.getCurrentUser() 
          .getObjectId()); 
        // users with Gender = currentUser.Looking_Gender 
        query.whereEqualTo("Gender", userLookingGender); 
        // users with Looking_Gender = currentUser.Gender 
        query.whereEqualTo("Looking_Gender", userGender); 
        query.setLimit(1); 
        query.whereEqualTo("ActivityName", activityName); 
        // query.whereGreaterThanOrEqualTo("Age", minimumAge); 
        // query.whereLessThanOrEqualTo("Age", maximumAge); 
        query.orderByDescending("Name"); 

        ParseFile image = objects.get(i).getParseFile("ProfilePicture"); 


        ParseImageView imageView = (ParseImageView) getView().findViewById(R.id.profilePictureresult); 

        // The placeholder will be used before and during the fetch, to be replaced by the fetched image 
        // data. 
        imageView.setPlaceholder(getResources().getDrawable(R.drawable.profile_pict)); 
        imageView.setParseFile(image); 
        imageView.loadInBackground(new GetDataCallback() { 
         @Override 
         public void done(byte[] data, ParseException e) { 
          if (data != null) { 
           Log.i("ParseImageView", "Fetched: " + data.length); 
          } else { 
           Log.e("ParseImageView", "Error fetching: " + e.getMessage()); 
          } 
         } 


       }); 
       } 
    }//for loop 
      }); 


     query1.findInBackground(new FindCallback<ParseUser>() { 
      @Override 
      public void done(List<ParseUser> objects,ParseException e) { 

       for(int i=0;i<objects.size();i++){ 
        // Do whatever you need to extract object from "users" 
        ParseQuery<ParseObject> query = ParseQuery.getQuery("User"); 
        query.whereNotEqualTo("objectId", ParseUser.getCurrentUser() 
          .getObjectId()); 
        // users with Gender = currentUser.Looking_Gender 
        query.whereEqualTo("Gender", userLookingGender); 
        // users with Looking_Gender = currentUser.Gender 
        query.whereEqualTo("Looking_Gender", userGender); 
        query.setLimit(1); 
        query.whereEqualTo("ActivityName", activityName); 
        // query.whereGreaterThanOrEqualTo("Age", minimumAge); 
        // query.whereLessThanOrEqualTo("Age", maximumAge); 

        mUserNameRetrieved = (TextView) getActivity().findViewById(R.id.userlistname); 

        mUserNameRetrieved.setText(objects.get(i).get("Name").toString()); 




       } 
    }//for loop 
      }); 

     query11.findInBackground(new FindCallback<ParseUser>() { 
      @Override 
      public void done(List<ParseUser> objects,ParseException e) { 

       for(int i=0;i<objects.size();i++){ 
        // Do whatever you need to extract object from "users" 
        ParseQuery<ParseObject> query = ParseQuery.getQuery("User"); 
        query.whereNotEqualTo("objectId", ParseUser.getCurrentUser() 
          .getObjectId()); 
        // users with Gender = currentUser.Looking_Gender 
        query.whereEqualTo("Gender", userLookingGender); 
        // users with Looking_Gender = currentUser.Gender 
        query.whereEqualTo("Looking_Gender", userGender); 
        query.setLimit(1); 
        query.whereEqualTo("ActivityName", activityName); 
        // query.whereGreaterThanOrEqualTo("Age", minimumAge); 
        // query.whereLessThanOrEqualTo("Age", maximumAge); 

        mUserHeadlineRetrieved = (TextView) getActivity().findViewById(R.id.userlistheadline); 

        mUserHeadlineRetrieved.setText(objects.get(i).get("Headline").toString()); 



       } 
    }//for loop 
      }); 




      query4.findInBackground(new FindCallback<ParseUser>() { 

       @Override 
       public void done(List<ParseUser> objects,ParseException e) { 

        for(int i=0;i<objects.size();i++){ 
         // Do whatever you need to extract object from "users" 
         ParseQuery<ParseObject> query = ParseQuery.getQuery("User"); 
         query.whereNotEqualTo("objectId", ParseUser.getCurrentUser() 
           .getObjectId()); 
         // users with Gender = currentUser.Looking_Gender 
         query.whereEqualTo("Gender", userLookingGender); 
         // users with Looking_Gender = currentUser.Gender 
         query.whereEqualTo("Looking_Gender", userGender); 
         query.setLimit(1); 
         query.whereEqualTo("ActivityName", activityName); 
         // query.whereGreaterThanOrEqualTo("Age", minimumAge); 
         // query.whereLessThanOrEqualTo("Age", maximumAge); 

         mUserActivityNameRetrieved = (TextView) getActivity().findViewById(R.id.userlistactivityname); 

         mUserActivityNameRetrieved.setText(objects.get(i).get("ActivityName").toString()); 




        } 
     }//for loop 
       }); 

      query5.findInBackground(new FindCallback<ParseUser>() { 

       @Override 
       public void done(List<ParseUser> objects,ParseException e) { 

        for(int i=0;i<objects.size();i++){ 
         // Do whatever you need to extract object from "users" 
         ParseQuery<ParseObject> query = ParseQuery.getQuery("User"); 
         query.whereNotEqualTo("objectId", ParseUser.getCurrentUser() 
           .getObjectId()); 
         // users with Gender = currentUser.Looking_Gender 
         query.whereEqualTo("Gender", userLookingGender); 
         // users with Looking_Gender = currentUser.Gender 
         query.whereEqualTo("Looking_Gender", userGender); 
         query.setLimit(1); 
         query.whereEqualTo("ActivityName", activityName); 
         // query.whereGreaterThanOrEqualTo("Age", minimumAge); 
         // query.whereLessThanOrEqualTo("Age", maximumAge); 

         mUserAgeRetrieved = (TextView) getActivity().findViewById(R.id.userlistage); 

         mUserAgeRetrieved.setText(objects.get(i).get("Age").toString()); 



        } 
     }//for loop 
       }); 


    } 

    public void openConversation(ArrayList<String> names, int pos) { 
     ParseQuery<ParseUser> query = ParseUser.getQuery(); 
     query.whereEqualTo("Name", names.get(pos)); 
     query.findInBackground(new FindCallback<ParseUser>() { 
      public void done(List<ParseUser> user, ParseException e) { 
       if (e == null) { 
        Intent intent = new Intent(getActivity() 
          .getApplicationContext(), MessagingActivity.class); 
        intent.putExtra("RECIPIENT_ID", user.get(0).getObjectId()); 
        startActivity(intent); 
       } else { 
        Toast.makeText(getActivity().getApplicationContext(), 
          "Error finding that user", Toast.LENGTH_SHORT) 
          .show(); 
       } 
      } 
     }); 
    } 

}

источник

2014-08-25 John

Можете ли вы показать код из 'com.dooba.beta.Fragment1. (Fragment1.java:77) 'Именно здесь и происходит NPE. – Jens

String userRetrieveName = mUserNameRetrieved.getText(). ToString(); – John

Вы отлаживали ли сообщение mUserNameRetrieved или mUserNameRetrieved.getText() было null? – Premsuraj

Ваш mUserNameRetrieved переменная не получает никакого значения. Попытайтесь присвоить значение SysOut или поместите некоторую проверку состояния, чтобы, если он не получит никакого значения, он не даст ошибку (используйте условие только при необходимости).

источник

2014-08-25 06:10:24

Спасибо за ваш ответ. Проблема в том, что предполагается, что нужно вернуть значение, указывающее, что текстовое поле заполняет данные из Parse, и тогда я хотел бы взять эти данные (имя) и сохранить их в Parse под новым столбцом. – John

выглядит как 'mUserNameRetrieved.setText (objects.get (я) .get ("Name") ToString()). 'вызывает проблемы. вы проверили? –

Спасибо за предложение: я проверил его и сыграл вокруг кода, чтобы получить новую ошибку nullpointer. Я обновил новое сообщение logcat и обновил код в разделе обновления моего первоначального сообщения. – John

Поле mUserNameRetrieved никогда не инициализируется в Fragment1, так что если вы звоните getText().

источник

2014-08-25 06:16:08 Jens

инициализировал его к чему? – John

@ user3907211 это должен быть 'TextView'' (TextView) getActivity(). FindViewById (R.id.userlistname)' – Jens

Спасибо за ваш ответ. Я добавил TextView mUserNameRetrieved = (TextView) getActivity(). FindViewById (R.id.userlistname); но по какой-то причине ошибка сохраняется – John

NullPointerException - Не удалось запустить активность

ответ

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