NewsFragment saving state

public class MainActivity extends AppCompatActivity
   implements NewsFragment.NewsListener {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        NewsFragment savedNewsFragment = (NewsFragment) getFragmentManager.findFragmentById(R.id.placeholder);

        if(savedNewsFragment == null) {
        NewsFragment newsFragment = new NewsFragment();
        FragmentManager fragmentManager = getFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();

        fragmentTransaction.add(R.id.placeholder, newsFragment);
        fragmentTransaction.commit();
        }
    }

    @Override
  public void onNewsItemSelected(int index) {

  }
}