简体   繁体   中英

How can I go to another fragment by clicking on an item in a ListView?

I am trying to go to another fragment(from AirportPostFragment to FinishPostFragment) by clicking on an item in a ListView. Why does this not work?

(getActivity()) is underlined red.

Error:(61, 66) error: constructor FinishPostFragment in class FinishPostFragment cannot be applied to given types; required: no arguments found: Activity reason: actual and formal argument lists differ in length

Code:

public class AirportPostFragment extends Fragment {

String stringsList[];
ArrayAdapter<String> adapter;
private ListView listViewAirports;
private EditText editSearch;
Context mycontext;
XmlPullParser parser;
HashSet airport_list;
HashSet<String> list = new HashSet<>();
HashSet<String> newList = new HashSet<>();

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_airportpost, container, false);

    listViewAirports = (ListView) rootView.findViewById(R.id.listView_airports);
    editSearch = (EditText) rootView.findViewById(R.id.search_airport);
    adapter = new ArrayAdapter<>(getActivity(),android.R.layout.simple_list_item_1, stringsList);

    listViewAirports.setAdapter(adapter);


    listViewAirports.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                                long id) {
            FragmentManager fm = getActivity().getFragmentManager();
            fm.beginTransaction().replace(R.id.content_main, new FinishPostFragment(getActivity())).commit();
        }
    });




    searchAirport();

    return rootView;
}

This my code of FinishPostFragment:

public class FinishPostFragment extends Fragment {

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_finishpost, container, false);

        return rootView;
    }
}

This my code of FinishPostFragment:

public class FinishPostFragment extends Fragment {

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_finishpost, container, false);

    return rootView;
}

}

It looks like the issue is that you don't have a constructor for FinishPostFragment that takes an Activity. Since you can always use getActivity() in a Fragment, there is no need to pass it an Activity in the constructor.

You could just change it to this:

fm.beginTransaction().replace(R.id.content_main, new FinishPostFragment()).commit();

The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM