Android Studio se “Doit mettre en œuvre OnFragmentInteractionListener”

Je suis un lancer qui "Doit mettre en œuvre OnFragmentInteractionListener, et j'ai déjà l'avoir...

J'ai regardé à chaque question posée ici, et personne ne m'a aidé.

Quelqu'un pourrait-il m'aider?

ERREUR:

FATAL EXCEPTION: main
     Process: com.example.android.navigationdrawer, PID: 5916
     java.lang.RuntimeException: com.example.android.navigationdrawer.MainActivity@3aefae64 must implement OnFragmentInteractionListener
         at com.example.android.navigationdrawer.FragmentCamera.onAttach(FragmentCamera.java:83)
         at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1019)
         at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1248)
         at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:738)
         at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1613)
         at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:517)
         at android.os.Handler.handleCallback(Handler.java:739)
         at android.os.Handler.dispatchMessage(Handler.java:95)
         at android.os.Looper.loop(Looper.java:135)
         at android.app.ActivityThread.main(ActivityThread.java:5930)
         at java.lang.reflect.Method.invoke(Native Method)
         at java.lang.reflect.Method.invoke(Method.java:372)
         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1405)
         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1200)    

MAINACTIVITY (jusqu'à la OnFragmentInteractionListener)

package com.example.android.navigationdrawer;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.NavigationView;
import android.support.design.widget.Snackbar;
import android.support.v4.app.Fragment;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity
        implements NavigationView.OnNavigationItemSelectedListener, FragmentCamera.OnFragmentInteractionListener {

MAINACTIVITY (FragmentCamera @Override)

@Override
public void onFragmentInteraction(Uri uri) {


}

MAINACTIVITY (ONCREATE)

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                    .setAction("Action", null).show();
        }
    });

    DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
            this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
    drawer.setDrawerListener(toggle);
    toggle.syncState();

    NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
    navigationView.setNavigationItemSelectedListener(this);
}

MAINACTIVITY (FRAGMENT DE TRANSACTION)

    boolean FragmentTransaction = false;
            Fragment fragment = null;


            //Camera

            if (id == R.id.nav_camera) {

                Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
                startActivity(intent);

                ImageView mImageView = (ImageView) findViewById(R.id.Galley1);



            //Galley

            } else if (id == R.id.nav_gallery) {

                fragment = new FragmentCamera();
                FragmentTransaction = true;
}

...

        if(FragmentTransaction) {
            getSupportFragmentManager().beginTransaction()
                    .replace(R.id.drawer_layout, fragment)
                    .commit();

            item.setChecked(true);
            getSupportActionBar().setTitle(item.getTitle());
        }

FRAGMENTCAMERA

package com.example.android.navigationdrawer;
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;
/**
* A simple {@link Fragment} subclass.
* Activities that contain this fragment must implement the
* {@link FragmentCamera.OnFragmentInteractionListener} interface
* to handle interaction events.
* Use the {@link FragmentCamera#newInstance} factory method to
* create an instance of this fragment.
*/
public class FragmentCamera 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 FragmentCamera() {
//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 FragmentCamera.
*/
//TODO: Rename and change types and number of parameters
public static FragmentCamera newInstance(String param1, String param2) {
FragmentCamera fragment = new FragmentCamera();
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) {
//Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_camera, 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);
}
}

Si vous avez besoin d'un peu plus de code, commentaire et je vais l'ajouter!