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Start your free trialMalcolm Mutambanengwe
4,205 PointsNewsFragment implements in MainActivity
Seth Kroger am stuck here. Any help? Thanks
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;
}
}
public class MainActivity extends AppCompatActivity implements NewsFragment.OnNewsItemSelected {
@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 onListNewsSelected(int index) {
}
}
2 Answers
Seth Kroger
56,413 PointsThe name of the interface after implements
needs to match the name of the interface in NewsFragment.
Malcolm Mutambanengwe
4,205 PointsI finally understood what I needed to do. Thanks Seth
Malcolm Mutambanengwe
4,205 PointsMalcolm Mutambanengwe
4,205 PointsHi Seth. Initially I tried :
public class MainActivity extends AppCompatActivity implements NewsFragment.NewsListener
but it didn't work. That's why I changed it
Seth Kroger
56,413 PointsSeth Kroger
56,413 PointsBoth the interface name and the method name must match.