MaterialTabHost tabHost;

@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		tabHost = (MaterialTabHost) this.findViewById(R.id.materialTabHost);
		pager = (ViewPager) this.findViewById(R.id.viewpager);
		
		// init view pager
		pagerAdapter = new ViewPagerAdapter(getSupportFragmentManager());
		pager.setAdapter(pagerAdapter);
		pager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
            @Override
            public void onPageSelected(int position) {
            	// when user do a swipe the selected tab change
                tabHost.setSelectedNavigationItem(position);
            }
        });
		
		// insert all tabs from pagerAdapter data
		for (int i = 0; i < pagerAdapter.getCount(); i++) {
            tabHost.addTab(
                    tabHost.newTab() 
                            .setIcon(getIcon(i))
                            .setTabListener(this)
                            );
    }
}

@Override
	public void onTabSelected(MaterialTab tab) {
		// when the tab is clicked the pager swipe content to the tab position
		pager.setCurrentItem(tab.getPosition());
		
	}