ActionBar Tabs using FragmentPagerAdapter

MainActivity .java
------------------------

package com.kundan.actionbar_tabs;

import android.annotation.SuppressLint;
import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.app.ActionBar.TabListener;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.view.Menu;

@SuppressLint("NewApi")
public class MainActivity extends FragmentActivity implements TabListener {
private String[] tabs = { "One", "Two" };
private ViewPager viewPager;
   
   private ActionBar actionBar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

        viewPager = (ViewPager) findViewById(R.id.pager);
        actionBar = getActionBar();
        viewPager.setAdapter(new TabsPagerAdapter(getSupportFragmentManager()));
        actionBar.setHomeButtonEnabled(false);
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);        

        // Adding Tabs
        for (String tab_name : tabs) {
            actionBar.addTab(actionBar.newTab().setText(tab_name).setTabListener(this));
        }
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub

}

@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
viewPager.setCurrentItem(tab.getPosition());


}

@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub

}

}

TabsPagerAdapter .java

-----------------------------

package com.kundan.actionbar_tabs;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentManager;

import android.support.v4.app.FragmentPagerAdapter;

public class TabsPagerAdapter extends FragmentPagerAdapter{

public TabsPagerAdapter(FragmentManager fm) {

super(fm);

}

@Override

public Fragment getItem(int index) {

switch (index) {

       case 0:

           

           return new One();

       case 1:

          

           return new Two();

       

       }

 

       return null;

}

@Override

public int getCount() {

// TODO Auto-generated method stub

return 2;

}

}

One .java

------------

package com.kundan.actionbar_tabs;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

public class One extends Fragment{

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

ViewGroup viewGroup=(ViewGroup) inflater.inflate(R.layout.first, container,false);

return viewGroup;

 

}

}

Two .java

----------------

package com.kundan.actionbar_tabs;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

public class Two extends Fragment{

@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

ViewGroup viewGroup=(ViewGroup) inflater.inflate(R.layout.two, container,false);

return viewGroup;

 

}

}

activity_main.xml

-------------------

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context=".MainActivity" >

<android.support.v4.view.ViewPager 

    android:id="@+id/pager"

    android:layout_width="match_parent"

    android:layout_height="match_parent"/>

</RelativeLayout>

first.xml

--------------

<?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"

    android:orientation="vertical" 

    android:background="#996699">

    <TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="First fragment" 

        android:layout_gravity="center"/>

</LinearLayout>

two.xml

-------------

<?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"

    android:orientation="vertical" 

    android:background="#996600">

    <TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Second Fragment" 

        android:layout_gravity="center"

        />

</LinearLayout>

NOTE: you can slide left or right also...!!!