How to always display ActionBar tabs below ActionBar in Android

Question

I have been looking to see if there is any information on how to always display the ActionBar tabs below the ActionBar even when the phone is orientated to landscape. I know that automatically it places the tabs in the ActionBar depending on whether there is enough room on the screen to fit them, but I want them to always be fixed underneath the ActionBar even in landscape. I found a similar question which didn't have a definitive answer: How to display tabs below action bar. I also know that many Google applications, such as; Google Play, Google Music etc implement this type of design pattern, so it is obviously achievable and acceptable as a design pattern.

I am currently using the ActionBarSherlock library to create my sliding tabs navigation and I would really appreciate it if anyone has figured out how to do this themselves. Thanks in advance.

Here is my activity code:

@Override
protected void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);

    viewPager = new ViewPager(this);
    viewPager.setId(R.id.pager);
    setContentView(viewPager);

    tabsAdapter = new TabsAdapter(this, viewPager); // Declares the tabs adapter class with the view pager view

    actionBarTabs = getSupportActionBar();
    actionBarTabs.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    actionBarTabs.setCustomView(spinnerView);
    actionBarTabs.setDisplayShowCustomEnabled(true);    

    /* Adds fragments to the tabs adapter */
    tabsAdapter.addTab(actionBarTabs.newTab().setText("FRAG1"), Fragment_1.class, null);
    tabsAdapter.addTab(actionBarTabs.newTab().setText("FRAG2"), Fragment_2.class, null);
    tabsAdapter.addTab(actionBarTabs.newTab().setText("FRAG3"), Fragment_3.class, null);
}

And here is my TabsAdapter code:

public class TabsAdapter extends FragmentPagerAdapter implements ActionBar.TabListener , ViewPager.OnPageChangeListener 
{
private final Context context;
private final ActionBar actionBar;
private final ViewPager viewPager;
private final ArrayList<TabInfo> tabsList = new ArrayList<TabInfo>();

/**
 * TabInfo class
 * 
 * Static class containing the tab information.
 * 
 * @since 1.0
 */
static final class TabInfo
{
    private final Class<?> clss;
    private final Bundle args;

    TabInfo(Class<?> _class, Bundle _args)
    {
        clss = _class;
        args = _args;
    }
}

/**
 * Tabs adapter overload constructor.
 * 
 * @param fragmentActivity sets the fragment activity to the adapter.
 * @param refViewPager sets the viewPager variable.
 * @see
 * @since 1.0
 */
public TabsAdapter(SherlockFragmentActivity fragmentActivity, ViewPager refViewPager) 
{
    super(fragmentActivity.getSupportFragmentManager());
    context = fragmentActivity;
    actionBar = fragmentActivity.getSupportActionBar();
    viewPager = refViewPager;
    viewPager.setAdapter(this);
    viewPager.setOnPageChangeListener(this);
}

/**
 * Add tab method to add a tab to the list.
 * 
 * @param tab sets the tab to be added to the tabs in the action bar.
 * @param clss sets the class variable in the TabInfo class.
 * @param args sets the bundle variable in the TabInfo class.
 * @see
 * @since 1.0
 */
public void addTab(ActionBar.Tab tab, Class<?> clss, Bundle args)
{
    TabInfo info = new TabInfo(clss, args);
    tab.setTag(info);
    tab.setTabListener(this);
    tabsList.add(info);
    actionBar.addTab(tab);
    notifyDataSetChanged();
}

@Override
public void onPageScrollStateChanged(int state) 
{

}

@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) 
{

}

@Override
public void onPageSelected(int position) 
{
    actionBar.setSelectedNavigationItem(position);
}

@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) 
{
    viewPager.setCurrentItem(tab.getPosition());
    Object tag = tab.getTag();
    for (int i = 0; i<tabsList.size(); i++)
    {
        if (tabsList.get(i) == tag)
        {
            viewPager.setCurrentItem(i);
        }
    }

}

@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) 
{

}

@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) 
{

}

@Override
public Fragment getItem(int position) 
{
    TabInfo info = tabsList.get(position);
    return Fragment.instantiate(context, info.clss.getName(), info.args);
}

@Override
public int getCount() 
{
    return tabsList.size();
}
}

Answer 1

I had same issues with landscape mode and I found the solution here: http://andreimihu.com/blog/2013/10/17/android-always-embed-tabs-in-actionbar/

Basically, the writer wants the tab inside actionbar while you and I wants it outside. So, just change the method call to false (code from the above link, but a bit modified):

// This is where the magic happens!
public void forceTabs() {
    try {
        final ActionBar actionBar = getActionBar();
        final Method setHasEmbeddedTabsMethod = actionBar.getClass()
            .getDeclaredMethod("setHasEmbeddedTabs", boolean.class);
        setHasEmbeddedTabsMethod.setAccessible(true);
        setHasEmbeddedTabsMethod.invoke(actionBar, false);
    }
    catch(final Exception e) {
        // Handle issues as needed: log, warn user, fallback etc
        // This error is safe to ignore, standard tabs will appear.
    }
}