Android Material Tabs

MainActivity.java

public class MainActivity extends AppCompatActivity {

    @Bind(R.id.toolbar)     Toolbar toolbar;
    @Bind(R.id.fab)         FloatingActionButton fab;
    @Bind(R.id.tabs)        TabLayout tabs;
    @Bind(R.id.pager)       ViewPager pager;

    MainPagerAdapter adapter;
    CharSequence Titles[]={"TAB 1","TAB 2"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);
        setSupportActionBar(toolbar);
        setUpTabs();
        setUpClick();
    }

    void setUpClick(){
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG).setAction("Action", null).show();
            }
        });
    }

    void setUpTabs(){
        adapter =  new MainPagerAdapter(this.getSupportFragmentManager(),Titles,Titles.length);
        pager.setAdapter(adapter);
        tabs.setupWithViewPager(pager);
        setupTabIcons();
    }

    private void setupTabIcons() {
        tabs.getTabAt(0).setIcon(R.mipmap.ic_launcher);
        tabs.getTabAt(1).setIcon(R.mipmap.ic_launcher);
    }

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

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}