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Android Android Fragments Introducing Fragments Saving State

Tuan Zen
Tuan Zen
6,882 Points
Posted by Tuan Zen
Tuan Zen
6,882 Points

NewsFragment saving state

i got the "cannot find symbol" error on the getFragmentManager in this code for some reason. I dont think im understanding this correctly.

MainActivity.java 
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) {

  }
}

1 Answer

Kourosh Raeen
Kourosh Raeen
23,733 Points
Kourosh Raeen
Kourosh Raeen
23,733 Points

Hi Tuan - You are very close. The only issue is when you're calling getFragmantManager() you've forgotten the parenthesis:

NewsFragment savedNewsFragment = (NewsFragment) getFragmentManager().findFragmentById(R.id.placeholder);
Tuan Zen
Tuan Zen
6,882 Points
Tuan Zen
Tuan Zen
6,882 Points

lol thanks so much java is so strict on everything