<!------ main.xml ------->
<?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"
    >
    <fragment android:name="com.conceptualsystems.smsmobile2.SmsTicketListFragment"
              android:id="@+id/ticket_list_fragment"
              android:layout_weight="1"
              android:layout_height="wrap_content"
              android:layout_width="wrap_content"/>
</LinearLayout>



<!------ sms_ticket_list_layout ------>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="match_parent"
              android:layout_height="match_parent">
    <ListView android:id="@+id/ticket_list"
              android:layout_width="match_parent"
              android:layout_height="match_parent" />
</LinearLayout>


<!------ Main Activity.java ------>
public class MainActivity extends FragmentActivity implements SmsTicketListFragment.OnTicketSelectedListener
{
    FragmentManager fm = getSupportFragmentManager();

    public void onTicketSelected(String selection) {
        Fragment ticketReviewFragment = new SmsTicketReviewFragment();  //fm.findFragmentById(R.id.ticket_review_fragment);
        FragmentTransaction transaction = fm.beginTransaction();

        //transaction.hide(fm.findFragmentById(R.id.ticket_list_fragment));
        transaction.replace(R.id.ticket_list_fragment, ticketReviewFragment);
        //transaction.detach(fm.findFragmentById(R.id.ticket_list_fragment));
        //transaction.attach(ticketReviewFragment);
        //transaction.detach(fm.findFragmentById(R.id.ticket_list_fragment));
        transaction.addToBackStack(null);

        transaction.commit();

        //Log.i("SMSTICKET", selection);
    }

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);


    }
}


<!------ Fragment A ------>
public class SmsTicketListFragment extends Fragment {
    OnTicketSelectedListener ticketSelectedListener;

    /*** View callback for Fragment class ***/
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.sms_ticket_list_layout, container, false);
        final List<String> listContent = new ArrayList<String>();
        listContent.add("Selection One");
        listContent.add("Selection Two");
        listContent.add("Selection Three");
        listContent.add("Selection Four");
        listContent.add("Selection Five");
        listContent.add("Selection Six");
        listContent.add("Selection Seven");
        listContent.add("Selection Eight");
        listContent.add("Selection Nine");
        listContent.add("Selection Ten");
        ListAdapter listAdapter = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_list_item_1, listContent);
        ListView listView = (ListView)v.findViewById(R.id.ticket_list);
        listView.setAdapter(listAdapter);

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                ticketSelectedListener.onTicketSelected(listContent.get(i));
            }
        });
        return v;
    }

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try {
            ticketSelectedListener = (OnTicketSelectedListener) activity;
        } catch(ClassCastException e) {
            throw e;
        }
    }

    public interface OnTicketSelectedListener {
        public void onTicketSelected(String selection);
    }
}


<!------ Fragment B ------>
public class SmsTicketReviewFragment extends Fragment {
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.sms_ticket_review_layout, container, false);
    }

}