when I run the app it closes. This is the error:
01-18 12: 33: 01.371 5953-5953 / com.aguila0017.fruits E / AndroidRuntime: FATAL EXCEPTION: main Process: com.aguila0017.fruits, PID: 5953 java.lang.RuntimeException: com.aguila0017.fruits.MainActivity@2c0774 must implement OnFragmentInteractionListener at com.aguila0017.fruits.Uno_Cerezas.onAttach (Uno_Cerezas.java:47) at android.support.v4.app.FragmentManagerImpl.moveToState (FragmentManager.java:1048) at android.support.v4.app.BackStackRecord.setLastIn (BackStackRecord.java:838) at android.support.v4.app.BackStackRecord.calculateFragments (BackStackRecord.java:878) at android.support.v4.app.BackStackRecord.run (BackStackRecord.java:719) at android.support.v4.app.FragmentManagerImpl.execPendingActions (FragmentManager.java:1682) at android.support.v4.app.FragmentManagerImpl $ 1.run (FragmentManager.java:541) at android.os.Handler.handleCallback (Handler.java:746) at android.os.Handler.dispatchMessage (Handler.java:95) at android.os.Looper.loop (Looper.java:148) at android.app.ActivityThread.main (ActivityThread.java:5443) at java.lang.reflect.Method.invoke (Native Method) at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run (ZygoteInit.java:728) at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:618)
This is the% code Fragment containing the ListView
import android.content.Context;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Switch;
public class DiezFrut extends Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
private OnFragmentInteractionListener mListener;
public DiezFrut() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param param1 Parameter 1.
* @param param2 Parameter 2.
* @return A new instance of fragment DiezFrut.
*/
// TODO: Rename and change types and number of parameters
public static DiezFrut newInstance(String param1, String param2) {
DiezFrut fragment = new DiezFrut();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view;
view = inflater.inflate(R.layout.fragment_diez_frut, container, false);
ListView dfrutas;
String [] frutas;
dfrutas = (ListView)view.findViewById(R.id.DiezFrutas);
frutas=getResources().getStringArray(R.array.Diezfrutas);
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_1,frutas);
dfrutas.setAdapter(arrayAdapter);
dfrutas.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
switch(i)
{
case 0:getActivity().getSupportFragmentManager().beginTransaction().replace(R.id.content_main,new Uno_Cerezas()).commit();
break;
}
}
});
return view;
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
}
and this the code of Fragment where I want to go:
import android.content.Context;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class Uno_Cerezas extends Fragment {
private OnFragmentInteractionListener mListener;
public Uno_Cerezas() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_uno__cerezas, container, false);
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
}