Сочетание TabListener, ActionBarSherlock Fragment и ListFragment, PageAdapter? Беспорядок

У меня есть активность с двумя фрагментами . Я решил использовать PageAdapter для переключения между двумя представлениями, но, чтобы оставаться ближе к лучшим практикам дизайна Android, я также решил использовать вкладки панели действий (фиксированные). Я использую ActionBarSherlock и некоторый код из здесьдля реализации вкладок. Только с pageadapter активность работала чудесно, теперь у меня две проблемы: 1) первый фрагмент (MatchRugbyButtonFragment) суперимпрессирует изображение самого себя, поэтому, если я прикоснусь к нему и перемещу или что-то поменяю, я увижу изображение над рабочим фрагментом. 2) когда я перехожу ко второму фрагменту, первый теряет все переменные (сброс таймера, сброс счетчиков, и т.д.). Мне пришлось создать tablistener, потому что один фрагмент является SherlockFragment, а другой - SherlockListFragment, и это вызвало ошибку, когда он не мог преобразовать фрагмент в SherlockListFragment. Вот активность:

  import java.util.ArrayList;
  import java.util.Arrays;
   import java.util.List;
    import java.util.Vector;

    import android.content.Intent;
    import android.os.Bundle;
     import android.support.v4.app.Fragment;
    import android.support.v4.app.FragmentManager;
     import android.support.v4.app.FragmentTransaction;
    import android.support.v4.app.ListFragment;
    import android.support.v4.view.ViewPager;
    import android.view.View;
    import android.widget.ArrayAdapter;
    import android.widget.Toast;

      import com.actionbarsherlock.app.ActionBar;
    import com.actionbarsherlock.app.ActionBar.Tab;
    import com.actionbarsherlock.app.SherlockFragment;
    import com.actionbarsherlock.app.SherlockFragmentActivity;
    import com.actionbarsherlock.view.Menu;
    import com.actionbarsherlock.view.MenuInflater;
    import com.actionbarsherlock.view.MenuItem;


    public class MatchRugbyFragments extends SherlockFragmentActivity implements View.OnClickListener, View.OnLongClickListener{


public static ArrayList commentary;

public static ArrayAdapter adapter;



// list contains fragments to instantiate in the viewpager
static List fragments = new Vector();
// page adapter between fragment list and view pager
private MyPagerAdapter mPagerAdapter;
// view pager
private ViewPager mPager;




protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);     
    setContentView(R.layout.fragments_rugby);

    FragmentManager fragmentManager = getSupportFragmentManager();
    FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();

    MatchRugbyButtonFragment buttonFrag = new MatchRugbyButtonFragment();
    MatchRugbySummaryFragment listFrag = new MatchRugbySummaryFragment();
    fragmentTransaction.add(R.id.pager, buttonFrag);
    fragmentTransaction.add(R.id.pager, listFrag);
    fragmentTransaction.commit();


    // creating fragments and adding to list
    fragments.add(buttonFrag);
    fragments.add(listFrag);


    // creating adapter and linking to view pager
    this.mPagerAdapter = new MyPagerAdapter(super.getSupportFragmentManager(),fragments);
    mPager = (ViewPager) super.findViewById(R.id.pager);
    mPager.setAdapter(this.mPagerAdapter);


    String[] array = {""}; 
    commentary = new ArrayList();
    commentary.addAll(Arrays.asList(array));

    adapter = new ArrayAdapter(this,
            R.layout.list_item_commentary,  commentary);





    final ActionBar bar = getSupportActionBar();
    bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    bar.setDisplayOptions(0, ActionBar.DISPLAY_SHOW_TITLE);
    bar.setHomeButtonEnabled(true);

    bar.addTab(bar.newTab()
            .setText("Comandi")
            .setTabListener(new TabListener(
                    this, "comandi", MatchRugbyButtonFragment.class)));
    bar.addTab(bar.newTab()
            .setText("Riassunto")
            .setTabListener(new TabListenerList(
                    this, "riassunto", MatchRugbySummaryFragment.class)));


    if (savedInstanceState != null) {
        bar.setSelectedNavigationItem(savedInstanceState.getInt("tab", 0));
    }
}

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putInt("tab", getActionBar().getSelectedNavigationIndex());
}

//Comandi per il click prolungato
public boolean onLongClick(View view) {

    return false;
}


@Override
public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getSupportMenuInflater();
    inflater.inflate(R.menu.rugby_match_menu, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
    case android.R.id.home:
        // app icon in action bar clicked; go home
        Intent intent = new Intent(this, SportScoutActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        startActivity(intent);
        return true;
    default:
        return super.onOptionsItemSelected(item);
    }
}
public static void addCommentaryRow(String s){
    adapter.add(s);
    MatchRugbySummaryFragment f2 = (MatchRugbySummaryFragment) fragments.get(1);
    f2.setListAdapter(adapter);
}

public static String commentaryToString(){
    String sAdapter= adapter.toString();
    return sAdapter;
}

public void onClick(View arg0) {


}



/**
 * @return the commentary
 */
public  ArrayList getCommentary() {
    return commentary;
}



/**
 * @param commentary the commentary to set
 */
public void setCommentary(ArrayList commentary) {
    MatchRugbyFragments.commentary = commentary;
}



/**
 * @return the adapter
 */
public ArrayAdapter getAdapter() {
    return adapter;
}



/**
 * @param adapter the adapter to set
 */
public void setAdapter(ArrayAdapter adapter) {
    MatchRugbyFragments.adapter = adapter;
}

// page 1 fragment listener implementation
public void onPage1(String s) {    



    // page 2 fragment update


}

public static class TabListener implements ActionBar.TabListener {
    private final SherlockFragmentActivity mActivity;
    private final String mTag;
    private final Class mClass;
    private final Bundle mArgs;
    private android.support.v4.app.Fragment mFragment;

    public TabListener(SherlockFragmentActivity activity, String tag, Class clz) {
        this(activity, tag, clz, null);
    }

    public TabListener(SherlockFragmentActivity activity, String tag, Class clz, Bundle args) {
        mActivity = activity;
        mTag = tag;
        mClass = clz;
        mArgs = args;

        // Check to see if we already have a fragment for this tab, probably
        // from a previously saved state.  If so, deactivate it, because our
        // initial state is that a tab isn't shown.
        mFragment = mActivity.getSupportFragmentManager().findFragmentByTag(mTag);
        if (mFragment != null && !mFragment.isDetached()) {
            FragmentTransaction ft = mActivity.getSupportFragmentManager().beginTransaction();
            ft.detach(mFragment);
            ft.commit();
        }
    }

    public void onTabSelected(Tab tab, FragmentTransaction ft) {
        if (mFragment == null) {
            mFragment = (SherlockFragment) Fragment.instantiate(mActivity, mClass.getName(), mArgs);
            ft.add(android.R.id.content, mFragment, mTag);
        } else {
            ft.attach(mFragment);
        }
    }

    public void onTabUnselected(Tab tab, FragmentTransaction ft) {
        if (mFragment != null) {
            ft.detach(mFragment);
        }
    }

    public void onTabReselected(Tab tab, FragmentTransaction ft) {
        Toast.makeText(mActivity, "Reselected!", Toast.LENGTH_SHORT).show();
    }


}

public static class TabListenerList implements ActionBar.TabListener {
    private final SherlockFragmentActivity mActivity;
    private final String mTag;
    private final Class mClass;
    private final Bundle mArgs;
    private android.support.v4.app.ListFragment mFragment;

    public TabListenerList(SherlockFragmentActivity activity, String tag, Class clz) {
        this(activity, tag, clz, null);
    }

    public TabListenerList(SherlockFragmentActivity activity, String tag, Class clz, Bundle args) {
        mActivity = activity;
        mTag = tag;
        mClass = clz;
        mArgs = args;

        // Check to see if we already have a fragment for this tab, probably
        // from a previously saved state.  If so, deactivate it, because our
        // initial state is that a tab isn't shown.
        mFragment = (ListFragment) mActivity.getSupportFragmentManager().findFragmentByTag(mTag);
        if (mFragment != null && !mFragment.isDetached()) {
            FragmentTransaction ft = mActivity.getSupportFragmentManager().beginTransaction();
            ft.detach(mFragment);
            ft.commit();
        }
    }

    public void onTabSelected(Tab tab, FragmentTransaction ft) {
        if (mFragment == null) {
            mFragment = (ListFragment) Fragment.instantiate(mActivity, mClass.getName(), mArgs);
            ft.add(android.R.id.content, mFragment, mTag);
        } else {
            ft.attach(mFragment);
        }
    }

    public void onTabUnselected(Tab tab, FragmentTransaction ft) {
        if (mFragment != null) {
            ft.detach(mFragment);
        }
    }

    public void onTabReselected(Tab tab, FragmentTransaction ft) {
        Toast.makeText(mActivity, "Reselected!", Toast.LENGTH_SHORT).show();
    }


}
    }

Вот класс pageadapter:

    package com.gmail.david.corsalini.sportscout;

    import java.util.List;

     import android.support.v4.app.Fragment;
    import android.support.v4.app.FragmentManager;
    import android.support.v4.app.FragmentPagerAdapter;

    public class MyPagerAdapter extends FragmentPagerAdapter {

    // fragments to instantiate in the viewpager
    private List fragments;

    // constructor
    public MyPagerAdapter(FragmentManager fm,List fragments) {
        super(fm);
        this.fragments = fragments;
    }

    // return access to fragment from position, required override
    @Override
    public Fragment getItem(int position) {
        return this.fragments.get(position);
    }

    // number of fragments in list, required override
    @Override
    public int getCount() {
        return this.fragments.size();
    }

}