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Android Android Fragments Introducing Fragments Handling Clicks

Posted by Yvonne Mutangi
Yvonne Mutangi
4,618 Points

Now implement this interface in the MainActivity class, but leave it blank for now.

i am having this error anyone to help

NewsFragment.java 
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; 
  }
}
MainActivity.java 
public class MainActivity extends AppCompatActivity {
   public class MainActivity 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();
    }

}
}

2 Answers

Rares Conea
PLUS
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Courses Plus Student 15,000 Points
Rares Conea
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Courses Plus Student 15,000 Points

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();
}

public void onNewsItemSelected(int index) {}

}

Yvonne Mutangi
Yvonne Mutangi
4,618 Points

Thanks alot it worked

Rares Conea
PLUS
Rares Conea
Courses Plus Student 15,000 Points
Rares Conea
Rares Conea
Courses Plus Student 15,000 Points

public class MainActivity extends AppCompatActivity implements NewsFragment.NewsListener In MainActivity implement onNewsItemSelected

Yvonne Mutangi
Yvonne Mutangi
4,618 Points

can i have the answer on the note pad