Android: Options Menu as Drop-down Navigation in ActionBar
<p>I created an Options menu like this</p>

<pre><code>&lt;menu xmlns:android="http://schemas.android.com/apk/res/android"&gt;
    &lt;item   android:id="@+id/menu_mark"
        android:actionLayout="@layout/menu_q1"
        android:showAsAction="ifRoom"/&gt;
    &lt;item android:id="@+id/menu_fertig"
          android:icon="@drawable/ic_menu_q2"
          android:showAsAction="ifRoom" /&gt;
</code></pre>

<p>and</p>

<pre><code>@Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.menu1, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case R.id.menu_q1:
        ...
</code></pre>

<p>now I want to use the menu items that are not show in the action bar directly in a ActionBar Spinner Drop-down Navigation. 
I use the sample code but dont't know how to let mSpinnerAdapter take the menu entries and 
mOnNavigationListener handle item clicks. Thanks</p>

<pre><code>ActionBar actionBar = getActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);

        actionBar.setListNavigationCallbacks(mSpinnerAdapter, mOnNavigationListener);
</code></pre>
