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Android Android Fragments Introducing Fragments Handling Clicks

handling clicks.

When a user clicks on a news story, a new Fragment should be displayed. Start by creating an interface in NewsFragment to serve as the listener. Name it 'NewsListener', and give it a method named 'onNewsItemSelected' which takes in an int and returns nothing.

NewsFragment.java
public class NewsFragment extends Fragment {

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

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        OnNewsItemSelectedInterface NewsListener = (OnNewsItemSelectedInterface) getActivity();
        View view = inflater.inflate(R.layout.fragment_news, container, false);
        return view;
    }
}
MainActivity.java
public class MainActivity extends AppCompatActivity {
    @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();
    }
}
Scott Junner
Scott Junner
9,010 Points

Do you have an actual question? Or are you just posting in the course work hoping someone will do it for you? https://developer.android.com/training/basics/fragments/index.html