import java.util.List;
import java.util.Vector;

import net.oartism.core.PagerAdapter;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;
import android.widget.TextView;

public class MainActivity extends  FragmentActivity
       implements TabHost.OnTabChangeListener,
          TabHost.TabContentFactory,
          ViewPager.OnPageChangeListener {

 private TabHost tabHost;
 private ViewPager viewPager;
 private PagerAdapter pagerAdapter;

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

  requestWindowFeature(Window.FEATURE_NO_TITLE);
  setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT);
  getWindow().addFlags(WindowManager.LayoutParams.FLAG_SPLIT_TOUCH
    |WindowManager.LayoutParams.FLAG_FULLSCREEN);

  setContentView(R.layout.main);

  initializeTabHost();
  initializeViewPager();
 }

 @Override
 protected void onResume() {
  super.onResume();
 }

 @Override
 protected void onPause() {
  super.onPause();
 }

 @Override
 protected void onDestroy() {
  super.onDestroy();
 }

 @Override
 protected void onSaveInstanceState(Bundle outState) {
  outState.putString("tabTag", tabHost.getCurrentTabTag());
  super.onSaveInstanceState(outState);
 }

 private void AddTab(int indicatorId, TabHost tabHost, String tag) {
  View v = LayoutInflater.from(this).inflate(indicatorId, null);
  TextView tv = (TextView) v.findViewById(R.id.tvTabIndicator);
  tv.setText(tag);

  TabSpec tabSpec = tabHost.newTabSpec(tag).setIndicator(v).setContent(this);
  tabHost.addTab(tabSpec);
 }

 private void initializeTabHost() {
  tabHost = (TabHost) findViewById(android.R.id.tabhost);
  tabHost.setup();

  AddTab(R.layout.tab_indicator, tabHost, getString(R.string.tab1));
  AddTab(R.layout.tab_indicator, tabHost, getString(R.string.tab2));
  AddTab(R.layout.tab_indicator, tabHost, getString(R.string.tab3));
  AddTab(R.layout.tab_indicator, tabHost, getString(R.string.tab4));

  for(int i = 0; i < tabHost.getTabWidget().getChildCount(); i++) {
   tabHost.getTabWidget().getChildAt(i).getLayoutParams().height = 60;
  }
  tabHost.setOnTabChangedListener(this);
 }

 private void initializeViewPager() {
  List<Fragment> fragments = new Vector<Fragment>();
  fragments.add(Fragment.instantiate(this, Tab1Fragment.class.getName()));
  fragments.add(Fragment.instantiate(this, Tab2Fragment.class.getName()));
  fragments.add(Fragment.instantiate(this, Tab3Fragment.class.getName()));
  fragments.add(Fragment.instantiate(this, Tab4Fragment.class.getName()));

  pagerAdapter = new PagerAdapter(getSupportFragmentManager(), fragments);

  viewPager = (ViewPager) findViewById(R.id.viewPager);
  viewPager.setAdapter(pagerAdapter);
  viewPager.setOnPageChangeListener(this);
 }

 @Override
 public boolean onKeyDown(int keyCode, KeyEvent event) {
  switch (keyCode) {
  case KeyEvent.KEYCODE_BACK:
   return true;
  case KeyEvent.KEYCODE_SEARCH:
   return true;
  case KeyEvent.KEYCODE_MENU:
   return true;
  }
  return super.onKeyDown(keyCode, event);
 }

 @Override public void onTabChanged(String tabId) { viewPager.setCurrentItem(tabHost.getCurrentTab()); }
 @Override public void onPageSelected(int position) { tabHost.setCurrentTab(position); }
 @Override public void onPageScrolled(int arg0, float arg1, int arg2) {}
 @Override public void onPageScrollStateChanged(int state) {}
 @Override public View createTabContent(String tag) { return new View(this); }
}