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Android Android Fragments Introducing Fragments Handling Clicks

Posted by TOL REC
TOL REC
Courses Plus Student 11,877 Points

Getting strange error message

./NewsFragment.java:7: error: cannot find symbol NewsListener listener = (NewsListener) getActivity(); ^ symbol: method getActivity() location: class NewsFragment 1 error

NewsFragment.java 
public class NewsFragment extends Fragment {
    public interface NewsListener {
        void onNewsItemSelected(int index);
    }
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
      NewsListener listener = (NewsListener) getActivity();
        View view = inflater.inflate(R.layout.fragment_news, container, false);

        return view;
    }
}
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 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

Elias Svoba
Elias Svoba
14,347 Points

Your code seems fine but i think you can exclude this line "NewsListener listener = (NewsListener) getActivity();" so that it looks like this:

public class NewsFragment extends Fragment {

public interface NewsListener { void onNewsItemSelected(int index); }

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

}