In this tutorial I provide an Android Material Design sliding tab example program and cover ViewPager and FragmentPagerAdapter. You are going to need these 2 files SlidingTabLayout.java and SlidingTabStrip.java.

This will allow us to use the newest form of sliding tabs that is also backwards compatible. I did my best to keep everything as simple as possible so that you can use this code in your applications immediately. The code follows the video below.

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Code From the Video

TabFragment1.java

package com.newthinktank.derekbanas.slidingtab;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

// Same for TabFragment2 and TabFragment3 except change this
// R.layout.tab_fragment_1 below

public class TabFragment1 extends Fragment {
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        View view = inflater.inflate(R.layout.tab_fragment_1, container, false);
        return view;
    }

}

tab_fragment_1.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">

    <!-- Same as tab_fragment_2.xml and tab_fragment_2.xml except
    change the text below -->

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Tab Fragment 1"
        android:textSize="16dp"
        android:padding="5dp"/>

</LinearLayout>

MyFragmentPagerAdapter.java

package com.newthinktank.derekbanas.slidingtab;

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

public class MyFragmentPagerAdapter extends FragmentPagerAdapter {

    // Holds tab titles
    private String tabTitles[] = new String[] { "Frag #1", "Frag #2", "Frag #3" };
    private Context context;

    public MyFragmentPagerAdapter(FragmentManager fm, Context context) {
        super(fm);
        this.context = context;
    }

    @Override
    public int getCount() {
        return 3;
    }

    // Return the correct Fragment based on index
    @Override
    public Fragment getItem(int position) {
        if(position == 0){
            return new TabFragment1();
        } else if(position == 1) {
            return new TabFragment2();
        } else if(position == 2) {
            return new TabFragment3();
        }

        return null;
    }

    @Override
    public CharSequence getPageTitle(int position) {
        // Return the tab title to SlidingTabLayout
        return tabTitles[position];
    }
}

activity_main.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">

    <!-- The sliding tab -->
    <com.newthinktank.derekbanas.slidingtab.stab.SlidingTabLayout
        android:id="@+id/sliding_tabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <!-- The pager that allows us to swipe between fragments -->
    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="0px"
        android:layout_weight="1"
        android:background="@android:color/white" />

</LinearLayout>

MainActivity.java

package com.newthinktank.derekbanas.slidingtab;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;

import com.newthinktank.derekbanas.slidingtab.stab.SlidingTabLayout;

public class MainActivity extends FragmentActivity {

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

        // Layout manager that allows the user to flip through the pages
        ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);

        // getSupportFragmentManager allows use to interact with the fragments
        // MyFragmentPagerAdapter will return a fragment based on an index that is passed
        viewPager.setAdapter(new MyFragmentPagerAdapter(getSupportFragmentManager(),
                MainActivity.this));

        // Initialize the Sliding Tab Layout
        SlidingTabLayout slidingTabLayout = (SlidingTabLayout) findViewById(R.id.sliding_tabs);

        // Connect the viewPager with the sliding tab layout
        slidingTabLayout.setViewPager(viewPager);
    }
}