title: How to call adapter inside dialogfragment inner class
body: <p>I have a <code>DialogFragment</code> that opens when the application is launched the first time. The user selects a value which is then stored as a preference, then a <code>listview</code> is filled with data according to the selected value.</p>
  
  <p>The problem is that my custom <code>DialogFragment</code> is an inner class, inside my MainActivity. I cannot seem to call my adapter (which loads my <code>listview</code> with data) inside <strong>onclick</strong>.</p>
  
  <p>I have tried accessing my adapter function in the inner class but I receive a "static" reference error. At the same time, I tried embedding my adapter function inside the class, but that resulted in the same:</p>
  
  <blockquote>
    <p>Cannot make a static reference to the non-static method</p>
  </blockquote>
  
  <p>I've toyed around with some hacks, but I know there is a better, standard way of doing this. Any help/advice would be appreciated.</p>
  
  <p>My code is listed below. </p>
  
  <pre><code>public class MainActivity extends ListActivity {
  
  private Cursor lines;
  private MetroSleepDb db;
  private ListAdapter adapter;
  public static final String PREFS_NAME = "METROSLEEP_PREFS";
  public static int PREFS_CITY = 0;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
  
      SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
      boolean prefs_isset = settings.contains("DEFAULT_CITY");
  
      if(prefs_isset) {
  
          PREFS_CITY = settings.getInt("DEFAULT_CITY", 0);
  
  
      } else {
  
          chooseCityDialog();
          PREFS_CITY = settings.getInt("DEFAULT_CITY", 0);
  
      }
  
      Editor editor = settings.edit();
      editor.putInt("DEFAULT_CITY", PREFS_CITY);
      editor.commit();
  
  }
  
  
  public void setAdapters() {
  
      Toast.makeText(getApplicationContext(), "Preference set to: "+PREFS_CITY, Toast.LENGTH_LONG).show();
  
      db = new MetroSleepDb(this);
      lines = db.getLines(); // you would not typically call this on the main thread
      //ListView listView = (ListView) findViewById(R.id.li);
      adapter = new SimpleCursorAdapter(this, android.R.layout.simple_list_item_1, 
              lines, 
              new String[] {"line_id"}, 
              new int[] {android.R.id.text1}, 0);
  
  
      getListView().setAdapter(adapter);
      getListView().setOnItemClickListener(onAnswerClicked);
  
  }
  
  
  public String getItem(int pos) {
  
      Cursor c = (Cursor) adapter.getItem(pos);
      String value = c.getString(c.getColumnIndex("line_id"));
      return value;
  }
  
  
  private OnItemClickListener onAnswerClicked = new OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView&lt;?&gt; parent, View view, int position,
              long id) {
  
          String line_value = getItem(position);
          Intent intent = new Intent(MainActivity.this, ChooseStations.class);
          intent.putExtra("line", line_value);
          startActivity(intent);
      }
  
  };
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.activity_main, menu);
      return true;
  }
  
  
  @Override
  public boolean onOptionsItemSelected(MenuItem  item) {
      switch (item.getItemId()) {
      case android.R.id.home:
  
          NavUtils.navigateUpFromSameTask(this);
          return true;
  
      case R.id.menu_settings:
          Intent intent = new Intent(this, SettingsActivity.class);
          startActivity(intent);
          return true;
      }
      return super.onOptionsItemSelected(item);
  }
  
  public void chooseCityDialog() {
  
      DialogFragment newFragment = new DialogSetup();
      newFragment.setCancelable(false);
      newFragment.setRetainInstance(true);
      newFragment.show(getFragmentManager(), "citypref");
  
  
  }
  
  
  public static final class DialogSetup extends DialogFragment {
      public Dialog onCreateDialog(Bundle savedInstanceState) {
  
          AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
          builder.setTitle(R.string.prompt_choose_city)
                 .setCancelable(false) 
                 .setInverseBackgroundForced(true)
                 .setItems(R.array.Cities, new DialogInterface.OnClickListener() {
                     public void onClick(DialogInterface dialog, int which) {
  
                         PREFS_CITY = which;
  
                 }
          });
  
          return builder.create();
      }
  
      @Override
      public void onDismiss(DialogInterface dialog) {
          // Do whatever
      }
  
  }
  
  
  
  @Override
  protected void onStop(){
     super.onStop();
  
    SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
    SharedPreferences.Editor editor = settings.edit();
    //editor.putBoolean("silentMode", mSilentMode);
  
    settings.getInt("DEFAULT_CITY", PREFS_CITY);
    editor.commit();
  }
  }
  </code></pre>