ActionBarSherlock add second Action Bar to SherlockFragmentActivity
===

I have created an ActionBar with a tabbed view using a ViewPager implementation with ActionBarSherlock. This all works fine and I have a top bar on my screen with two tabs (Profile and Info), implemented with Fragments. However, this is only one part/activity (the main activity) of my application and now I want to add another menu/action bar at the bottom of the screen that navigates between the different parts of my application. So now I have the Main activity and I wanna end up with the following in the bottom action bar:

 - Main Activity
 - Settings Activity
 - Help Activity

How can I integrate this bottom bar that will be displayed across my whole application? My current Activity is implemented as follows:

    public class ContactsActivity extends SherlockFragmentActivity implements  OnContactsFetchedListener { 

	private static final String TAG = "MainActivity";
	
	private ViewPager mViewPager;
	private TabsAdapter mTabsAdapter;
	private TabHost mTabHost;
	
	private String user;
	private String token;
	
	/** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
    	setTheme(SampleList.THEME);
    	super.onCreate(savedInstanceState);
    	// Hide the title bar (just shows "Minggler")
    	this.requestWindowFeature(Window.FEATURE_NO_TITLE);
    	//setContentView(R.layout.main);
    	
    	Bundle extras = getIntent().getExtras();
    	if (extras != null) {
    		String message = extras.getString("message");
    		Utils.showToast(getApplicationContext(), message);
    		String user = extras.getString("user");
    		String token = extras.getString("token");
    		if (token != null) {
    			saveUniqueToken();
    		}
    	}
    	
    	mViewPager = new ViewPager(this);
    	mViewPager.setId(R.id.pager);
    	mViewPager.setOffscreenPageLimit(3);
    	setContentView(mViewPager);
    	mTabsAdapter = new TabsAdapter(this, mViewPager);
    	
    	ActionBar bar = getSupportActionBar();
    	bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    	bar.setDisplayUseLogoEnabled(false);
    	bar.setDisplayShowTitleEnabled(false);
    	bar.setDisplayShowHomeEnabled(false);
    	
    	mTabsAdapter = new TabsAdapter(this, mViewPager);
    	mTabsAdapter.addTab(bar.newTab().setText("Profile"),
    			ContactsFragment.class, null);
    	mTabsAdapter.addTab(bar.newTab().setText("Info"),
    			InformationFragment.class, null);
    	
    	Intent intent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
    	getContactInfo(intent);
    	getCallHistory();
    }
    
    public static class TabsAdapter extends FragmentPagerAdapter
			implements ActionBar.TabListener, ViewPager.OnPageChangeListener {
		private final Context mContext;
		private final ActionBar mActionBar;
		private final ViewPager mViewPager;
		private final ArrayList<TabInfo> mTabs = new ArrayList<TabInfo>();
		
		static final class TabInfo {
			private final Class<?> clss;
			private final Bundle args;
			
			TabInfo(Class<?> _class, Bundle _args) {
				clss = _class;
				args = _args;
			}
		}
		
		public TabsAdapter(SherlockFragmentActivity activity, ViewPager pager) {
			super(activity.getSupportFragmentManager());
			mContext = activity;
			mActionBar = activity.getSupportActionBar();
			
			mViewPager = pager;
			mViewPager.setAdapter(this);
			mViewPager.setOnPageChangeListener(this);
		}
		
		public void addTab(ActionBar.Tab tab, Class<?> clss, Bundle args) {
			TabInfo info = new TabInfo(clss, args);
			tab.setTag(info);
			tab.setTabListener(this);
			mTabs.add(info);
			mActionBar.addTab(tab);
			notifyDataSetChanged();
		}
		
		public int getCount() {
			return mTabs.size();
		}
		
		public SherlockFragment getItem(int position) {
			TabInfo info = mTabs.get(position);
			return (SherlockFragment)Fragment.instantiate(mContext, info.clss.getName(), info.args);
		}
		
		public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
		
		}
		
		public void onPageSelected(int position) {
			mActionBar.setSelectedNavigationItem(position);
		}
		
		public void onPageScrollStateChanged(int state) {
		
		}
		
		public void onTabSelected(Tab tab, FragmentTransaction ft) {
			mViewPager.setCurrentItem(tab.getPosition());
			Object tag = tab.getTag();
			for (int i=0; i<mTabs.size(); i++) {
				if (mTabs.get(i) == tag) {
					mViewPager.setCurrentItem(i);
				}
			}
		}
		
		public void onTabUnselected(Tab tab, FragmentTransaction ft) {}
		
		public void onTabReselected(Tab tab, FragmentTransaction ft) {}
		
	} 

And my layout is defined as follows:

    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
	android:orientation="vertical"
	android:layout_width="fill_parent"
	android:layout_height="fill_parent"
	>
        
        <android.support.v4.view.ViewPager
            android:id="@+id/pager"
            android:layout_width="0dip"
            android:layout_height="0dip"
            android:layout_weight="5" />

    </LinearLayout>

Anyone has got an idea of how to approach this? It might be a lot of effort, but thanks a lot!
