일단 horizonal paging에 탭2개로 각각 activity(Tab1,Tab2) 만들었구요

public class MainActivity extends FragmentActivity implements
        ActionBar.TabListener {

    SectionsPagerAdapter mSectionsPagerAdapter;

    ViewPager mViewPager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
        setContentView(R.layout.sample_main);

        final ActionBar actionBar = getActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
       
        mSectionsPagerAdapter = new SectionsPagerAdapter(
                getSupportFragmentManager());
     
        mViewPager = (ViewPager) findViewById(R.id.pager);
        mViewPager.setAdapter(mSectionsPagerAdapter);

        mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
@Override
         public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position); }
                });

        for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
            actionBar.addTab(actionBar.newTab()
                    .setText(mSectionsPagerAdapter.getPageTitle(i))
                    .setTabListener(this)); }
    }
@Override
    public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
 mViewPager.setCurrentItem(tab.getPosition());
    }
@Override
    public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { }

@Override
    public void onTabReselected(ActionBar.Tab tab,
                                FragmentTransaction fragmentTransaction) { }


    public class SectionsPagerAdapter extends FragmentPagerAdapter {
         Context mContext;

        public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
        }

        public Fragment getItem(int position) {
            switch(position) {
case 0:
return new Tab1(mContext);
                case 1:
return new Tab2(mContext);
            }
return null;
        }
@Override
        public int getCount() {
  return 2;  }

@Override
        public CharSequence getPageTitle(int position) {
            Locale l = Locale.getDefault();
            switch (position) {
case 0:
return getString(R.string.title_section1).toUpperCase(l);
                case 1:
return getString(R.string.title_section2).toUpperCase(l);
            }
return null;  }
    }
    public static class DummySectionFragment extends Fragment {

        public static final String ARG_SECTION_NUMBER = "section_number";

        public DummySectionFragment() {
        }

@Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            View rootView = inflater.inflate(R.layout.fragment_main_dummy,
                    container, false);
            TextView dummyTextView = (TextView) rootView
                    .findViewById(R.id.section_label);
            dummyTextView.setText(Integer.toString(getArguments().getInt(
ARG_SECTION_NUMBER)));
            return rootView;  }
    }
}

public class Tab1 extends Fragment {
    Context mContext;

    public Tab1(Context context) {
mContext = context;
    }
private TextSwitcher mSwitcher;
    Button button1;

    String textToShow[]={"Main HeadLine","Your Message","New In Technology","New Articles","Business News","What IS New"};
    int messageCount=textToShow.length;
    int currentIndex=-1;
    @Override
   public View onCreateView(LayoutInflater inflater,
                            ViewGroup container,Bundle savedInstanceState)
    {
        View view = inflater.inflate(R.layout.activity_tab1, null);
        super.onCreate(savedInstanceState);

        button1=(Button)view.findViewById(R.id.button1);
        mSwitcher = (TextSwitcher) view.findViewById(R.id.textSwitcher);
mSwitcher.setFactory(new ViewSwitcher.ViewFactory() {
@Override
    public View makeView() {
        TextView myText = new TextView(Tab1.this);
        myText.setGravity(Gravity.TOP | Gravity.CENTER_HORIZONTAL);
        myText.setTextSize(36);
        return myText;
    }
});
        button1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
        currentIndex++;
        // If index reaches maximum reset it
        if (currentIndex == messageCount)
currentIndex = 0;
        mSwitcher.setText(textToShow[currentIndex]);
    }
});
        return view; }
}