title: menu.findItem returns null
body: <p>I can't find the solution please help</p>
  
  <p>The implements:</p>
  
  <pre><code>public class VentasActivity extends ActionBarActivity
      implements NavigationDrawerFragment.NavigationDrawerCallbacks, android.support.v7.widget.SearchView.OnQueryTextListener
  </code></pre>
  
  <p>where returns null:</p>
  
  <pre><code>@Override
  public boolean onCreateOptionsMenu(Menu menu) {
      if (!mNavigationDrawerFragment.isDrawerOpen()) {
          getMenuInflater().inflate(R.menu.sales, menu);
          restoreActionBar();
  
         // HERE RETURNS NULL
          searchView = (SearchView) menu.findItem(R.id.action_product_search).getActionView();
  
          if (searchView != null) {
              final Menu menu_block = menu;
              searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
  
                  @Override
                  public boolean onQueryTextSubmit(String query) {
                      // collapse the view ?
                      menu_block.findItem(R.id.action_product_search).collapseActionView();
                      return false;
                  }
  
                  @Override
                  public boolean onQueryTextChange(String newText) {
                      // search goes here !!
                      // listAdapter.getFilter().filter(query);
                      return false;
                  }
              });
              Log.i("sales module", "SearchView OK");
          } else
              Log.i("sales module", "SearchView is null");
  
  
          return true;
      }
      return super.onCreateOptionsMenu(menu);
  }
  </code></pre>
  
  <p>and sales.xml</p>
  
  <pre><code>&lt;menu xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto" &gt;
  
  &lt;item android:id="@+id/action_product_search"
      android:title="@string/action_search"
      android:icon="@drawable/ic_action_search"
      app:showAsAction="always|collapseActionView"
      android:actionViewClass="android.widget.SearchView" /&gt;
  </code></pre>
  
  <p></p>
  
  <p>Many many thanks!</p>
  
  <p>UPDATED: the code of restoreActionBar()</p>
  
  <pre><code>public void restoreActionBar() {
      ActionBar actionBar = getSupportActionBar();
      actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
      actionBar.setDisplayShowTitleEnabled(true);
      actionBar.setTitle(mTitle);
  }
  </code></pre>