A wrap Fragment with TabLayout and ViewPager

fragment_tab_viewpager.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/fragment_background"
    android:orientation="vertical">

    <android.support.design.widget.TabLayout
        android:id="@+id/tab_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@android:color/white"
        app:tabMode="fixed"
        app:tabGravity="fill"
        app:tabMaxWidth="0dp"
        app:tabBackground="@android:color/white"
        app:tabIndicatorColor="@color/theme_color"
        app:tabSelectedTextColor="@color/grey_dark"
        app:tabTextColor="@color/font_dark_support" />

    <android.support.v4.view.ViewPager
        android:id="@+id/view_pager"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</LinearLayout>

TabViewPagerFragment.java

public abstract class TabViewPagerFragment extends ECFragment implements TabLayout.OnTabSelectedListener, ViewPager.OnPageChangeListener {
    private static final String TAG = ECTabViewPagerFragment.class.getSimpleName();

    private TabLayout mTabLayout;
    @TabLayout.Mode
    private int mTabLayoutMode = TabLayout.MODE_FIXED;
    private ViewPager mViewPager;
    private TabPageAdapter mPagerAdapter;

    /*
     * Mandatory empty constructor for the fragment manager to instantiate the
     * fragment (e.g. upon screen orientation changes).
     */
    public TabViewPagerFragment() {
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_tab_viewpager, container, false);

        mTabLayout = ViewUtils.findViewById(view, R.id.tab_layout);
        mViewPager = ViewUtils.findViewById(view, R.id.view_pager);

        mTabLayout.setTabMode(mTabLayoutMode);
        mTabLayout.setupWithViewPager(mViewPager);
        mTabLayout.addOnTabSelectedListener(this);

        mPagerAdapter = new TabPageAdapter(getChildFragmentManager());

        mViewPager.setAdapter(mPagerAdapter);
        mViewPager.addOnPageChangeListener(this);

        return view;
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();

        mTabLayout.removeOnTabSelectedListener(this);
        mViewPager.removeOnPageChangeListener(this);
    }

    @Override
    public void onTabSelected(TabLayout.Tab tab) {
    }

    @Override
    public void onTabUnselected(TabLayout.Tab tab) {
    }

    @Override
    public void onTabReselected(TabLayout.Tab tab) {
    }

    @Override
    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
    }

    @Override
    public void onPageSelected(int position) {
    }

    @Override
    public void onPageScrollStateChanged(int state) {
    }

    public void setTabMode(@TabLayout.Mode int mode) {
        mTabLayoutMode = mode;
        if (mTabLayout != null) {
            mTabLayout.setTabMode(mTabLayoutMode);
        }
    }

    public int getCurrentTab() {
        return mViewPager.getCurrentItem();
    }

    public void setCurrentTab(int position) {
        mViewPager.setCurrentItem(position);
    }

    public void setCurrentTab(int position, boolean smoothScroll) {
        mViewPager.setCurrentItem(position, smoothScroll);
    }

    public void notifyTabPagerDataSetChanged() {
        mPagerAdapter.notifyDataSetChanged();
    }

    public Fragment getFragment(int position) {
        return mPagerAdapter.getFragment(position);
    }

    public Fragment getCurrentFragment() {
        return mPagerAdapter.getFragment(mViewPager.getCurrentItem());
    }

    public abstract Fragment prepareFragmentPage(int position);

    public abstract int prepareFragmentPageCount();

    public abstract CharSequence prepareFragmentPageTitle(int position);

    private class TabPageAdapter extends ECFragmentStatePagerAdapter {

        TabPageAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int position) {
            return prepareFragmentPage(position);
        }

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

        @Override
        public CharSequence getPageTitle(int position) {
            return prepareFragmentPageTitle(position);
        }
    }
}