EditText ile filtrelemede pozisyon hatası

Arkadaşlar

Sözlüğümde veritabanından çektiğim veriyi EditText ile filtereledikten sonra, filtrelediğim veriden seçim yaptığımda kelimenin kendi açıklaması yerine başka anlam geliyor. Kelimenin pozisyon numarası EditText ile filtereledikten değişmiyor. Şöyle:

MainActivity.java

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends ActionBarActivity {

    private EditText filterText;
    private ArrayAdapter<String> listAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        filterText = (EditText)findViewById(R.id.editText);
        ListView itemList = (ListView)findViewById(R.id.listView);

        DbBackend dbBackend = new DbBackend(MainActivity.this);
        String[] terms = dbBackend.dictionaryWords();

        listAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, android.R.id.text1, terms);

        itemList.setAdapter(listAdapter);
        itemList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                // make Toast when click
                Toast.makeText(getApplicationContext(), "Position " + position, Toast.LENGTH_LONG).show();
                Intent intent = new Intent(MainActivity.this, DictionaryActivity.class);
                intent.putExtra("DICTIONARY_ID", position);
                startActivity(intent);
            }
        });

        filterText.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
            }
            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                MainActivity.this.listAdapter.getFilter().filter(s);
            }
            @Override
            public void afterTextChanged(Editable s) {
            }
        });
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

DictionaryActivity.java

import android.annotation.TargetApi;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.support.v7.app.ActionBarActivity;
import android.text.method.ScrollingMovementMethod;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import java.util.Locale;

public class DictionaryActivity extends ActionBarActivity {

    private TextView wordMeaning;
    private TextToSpeech convertToSpeech;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_dictionary);

        Intent intent = getIntent();
        Bundle bundle = intent.getExtras();
        int dictionaryId = bundle.getInt("DICTIONARY_ID");
        int id = dictionaryId + 1;

        TextView word = (TextView)findViewById(R.id.word);
        wordMeaning = (TextView)findViewById(R.id.dictionary);
        Button textToSpeech = (Button)findViewById(R.id.button);
        wordMeaning.setMovementMethod( new ScrollingMovementMethod());


        DbBackend dbBackend = new DbBackend(DictionaryActivity.this);
        QuizObject allQuizQuestions = dbBackend.getQuizById(id);

        word.setText(allQuizQuestions.getWord());
        wordMeaning.setText(allQuizQuestions.getDefinition());

        textToSpeech.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                final String convertTextToSpeech = wordMeaning.getText().toString();
                convertToSpeech = new TextToSpeech(getApplicationContext(), new TextToSpeech.OnInitListener() {
                    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
                    @Override
                    public void onInit(int status) {
                        if(status != TextToSpeech.ERROR){
                            convertToSpeech.setLanguage(Locale.US);
                            convertToSpeech.speak(convertTextToSpeech, TextToSpeech.QUEUE_FLUSH, null, null);
                        }
                    }
                });
            }
        });
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_dictionary, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    protected void onPause() {
        if(convertToSpeech != null){
            convertToSpeech.stop();
            convertToSpeech.shutdown();
        }
        super.onPause();
    }
}

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context=".MainActivity">

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/editText"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <ListView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/listView"
        android:layout_marginRight="20dp"
        android:layout_marginTop="10dp"
        android:layout_below="@+id/editText"
        android:layout_alignLeft="@+id/editText"
        android:layout_alignStart="@+id/editText" />

</RelativeLayout>

Sorunumu çözebilmeme yardım edebilirseniz sevinirim, teşekkürler.