title: How do I style a dropdown list in an ActionBar in Honeycomb?
body: <p>I am working on an Android Honeycomb with an ActionBar. I have set up the ActionBar the following way:</p>
  
  <pre><code>// Configures the action bar
  private void configureActionBar() {
      mActionBar = getActionBar();
      mActionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
  
      SpinnerAdapter spinnerAdapter = ArrayAdapter.createFromResource(this, R.array.rooms, android.R.layout.simple_spinner_dropdown_item);
  
      ActionBar.OnNavigationListener navigationCallback = new ActionBar.OnNavigationListener() {
          public boolean onNavigationItemSelected(int itemPosition, long itemId) {
              String[] rooms = getResources().getStringArray(R.array.rooms);
  
              mAppState.setCurrentRoom(rooms[itemPosition]);
  
              return false;
          }
      };
  
      mActionBar.setListNavigationCallbacks(spinnerAdapter, navigationCallback);
  }
  </code></pre>
  
  <p>The image below displays a screenshot of a portion of the ActionBar. I would like to style the dropdown list, but am not sure how to do it. This <a href="http://android-developers.blogspot.com/2011/04/customizing-action-bar.html" rel="nofollow noreferrer">link</a> has some XML samples, but I do not know how to apply them and how to style the specific elements that are pointed out below.</p>
  
  <p><img src="https://i.stack.imgur.com/sN8T0.png" alt="ActionBar Dropdown List for Styling"></p>
  
  <p>Here's a list of changes that I would like to make:</p>
  
  <ol>
  <li>Change the font size of the selected item to match that of the words "Room Manager"</li>
  <li>Remove the gray line underlying the displayed selected item</li>
  <li>Remove the blue line at the top of the dropdown list</li>
  <li>Add radio buttons to the list items and check the currently selected item in the dropdown list</li>
  <li>Change the color of the lines separating the list items</li>
  </ol>
  
  <p>Does anyone have any ideas on how to do this?</p>
  
  <p>Thank you!</p>