Bonjour la communauté.

J'essaie d'implémenter un système de like/unlike en utilisant FirebaseRecyclerAdapter et donc Firebase, mais je rencontre une difficulté lorsque j'essaie de définir l'image par défaut dans chaque cardview, lorsque l'utilisateur a liké au préalable.
voici le code utilisé :

Code : Sélectionner tout - Visualiser dans une fenêtre à part
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package com.tomarv.android.nouchibook;
 
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
 
import com.firebase.ui.database.FirebaseRecyclerAdapter;
import com.firebase.ui.database.FirebaseRecyclerOptions;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.Query;
 
import java.util.List;
 
import static com.android.book.BookActivity.mUserNotes;
 
 
public class FragmentForCommunity extends Fragment {
 
    private static final String TAG = FragmentForCommunity.class.getSimpleName();
    public final static String LIKE = "like";
    public final static String UNLIKE = "unlike";
 
    private RecyclerView mRecyclerView = null;
    private FirebaseRecyclerAdapter<BookEntry, FragmentForCommunity.BookEntryViewHolder> mAdapter;
    private FirebaseDatabase mDatabase;
    private DatabaseReference mBookReference;
    private DatabaseReference mNotesReference;
    private Context context = null;
 
    public FragmentForCommunity() {
        // Required empty public constructor
    }
 
    public static FragmentForCommunity newInstance() {
        return new FragmentForCommunity();
    }
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
 
        mDatabase = FirebaseDatabase.getInstance();
        mBookReference = mDatabase.getReference().child("book");
        mNotesReference = mDatabase.getReference().child("notes");
 
 
 
    }
 
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        final View view = inflater.inflate(R.layout.fragment_list, container, false);
 
        // Get recycler view from layout
        mRecyclerView = view.findViewById(R.id.recycler_view);
 
        // Setup adapter
        final Query query = mBookReference.orderByKey();
 
        FirebaseRecyclerOptions<BookEntry> options = new FirebaseRecyclerOptions.Builder<BookEntry>()
                .setQuery(query, BookEntry.class)
                .build();
 
        mAdapter = new FirebaseRecyclerAdapter<BookEntry, BookEntryViewHolder>(options) {
 
            @Override
            public BookEntryViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
                View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item, parent, false);
                context = parent.getContext();
                return new BookEntryViewHolder(view);
            }
 
            @Override
            public void onBindViewHolder(final BookEntryViewHolder viewHolder, int position, List<Object> payloads) {
                if (!payloads.isEmpty()){
                    if (payloads.contains(LIKE)) {
                        if (viewHolder.imageForLike.getDrawable() == getResources().getDrawable(R.drawable.ic_thumb_up_ltgray))
                            viewHolder.imageForLike.setImageDrawable(getResources().getDrawable(R.drawable.ic_thumb_up_blue));
                        else
                            viewHolder.imageForLike.setImageDrawable(getResources().getDrawable(R.drawable.ic_thumb_up_ltgray));
                    } else if (payloads.contains(UNLIKE)) {
                        if (viewHolder.imageForUnlike.getDrawable() == getResources().getDrawable(R.drawable.ic_thumb_down_ltgray))
                            viewHolder.imageForUnlike.setImageDrawable(getResources().getDrawable(R.drawable.ic_thumb_down_blue));
                        else
                            viewHolder.imageForUnlike.setImageDrawable(getResources().getDrawable(R.drawable.ic_thumb_down_ltgray));
                    } else if (payloads.contains(LIKE+"+"+UNLIKE)) {
                        if (viewHolder.imageForLike.getDrawable() == getResources().getDrawable(R.drawable.ic_thumb_up_ltgray)) {
                            viewHolder.imageForLike.setImageDrawable(getResources().getDrawable(R.drawable.ic_thumb_up_blue));
                            viewHolder.imageForUnlike.setImageDrawable(getResources().getDrawable(R.drawable.ic_thumb_down_ltgray));
                        }
                        else {
                            viewHolder.imageForLike.setImageDrawable(getResources().getDrawable(R.drawable.ic_thumb_up_ltgray));
                            viewHolder.imageForUnlike.setImageDrawable(getResources().getDrawable(R.drawable.ic_thumb_down_blue));
                        }
                    }
                } else {
                    super.onBindViewHolder(viewHolder, position, payloads);
                }
            }
 
            @Override
            protected void onBindViewHolder(@NonNull final BookEntryViewHolder viewHolder, final int position, @NonNull final BookEntry model) {
                // Fill other text views
                viewHolder.textViewForExpression.setText(model.getExpression());
                viewHolder.textViewForDescription.setText(model.getDescription());
                viewHolder.textViewForLike.setText(String.valueOf(model.getLike()));
                viewHolder.textViewForUnlike.setText(String.valueOf(model.getUnlike()));
                viewHolder.textViewForAuthor.setText(context.getString(R.string.author, model.getAuthor()));
                // Fill image views
                if (!mUserNotes.containsKey(model.getKey())) {
                    if (mUserNotes.get(model.getKey()) == LIKE) {
                        viewHolder.imageForLike.setImageDrawable(getResources().getDrawable(R.drawable.ic_thumb_up_blue));
                        viewHolder.imageForUnlike.setImageDrawable(getResources().getDrawable(R.drawable.ic_thumb_down_ltgray));
                    } else if (mUserNotes.get(model.getKey()) == UNLIKE) {
                        viewHolder.imageForLike.setImageDrawable(getResources().getDrawable(R.drawable.ic_thumb_up_ltgray));
                        viewHolder.imageForUnlike.setImageDrawable(getResources().getDrawable(R.drawable.ic_thumb_down_blue));
                    }
                } else {
                    viewHolder.imageForLike.setImageDrawable(getResources().getDrawable(R.drawable.ic_thumb_up_ltgray));
                    viewHolder.imageForUnlike.setImageDrawable(getResources().getDrawable(R.drawable.ic_thumb_down_ltgray));
                }
        }};
 
        // Setup recycler view
        mRecyclerView.setLayoutManager(new LinearLayoutManager(context));
        mRecyclerView.setHasFixedSize(true);
        mRecyclerView.setAdapter(mAdapter);
 
        return view;
    }
 
    @Override
    public void onStart() {
        super.onStart();
        mAdapter.startListening();
    }
 
    @Override
    public void onStop() {
        super.onStop();
        mAdapter.stopListening();
    }
 
 
 
    // Custom ViewHolder class
    public class BookEntryViewHolder extends RecyclerView.ViewHolder {
 
        private TextView textViewForExpression;
        private TextView textViewForDescription;
        private TextView textViewForLike;
        private TextView textViewForUnlike;
        private TextView textViewForAuthor;
        private ImageView imageForLike;
        private ImageView imageForUnlike;
        private ImageView imageForPlay;
 
        public BookEntryViewHolder(View itemView) {
            super(itemView);
 
            textViewForExpression = itemView.findViewById(R.id.expression);
            textViewForDescription = itemView.findViewById(R.id.description);
            textViewForLike = itemView.findViewById(R.id.vote_up);
            textViewForUnlike = itemView.findViewById(R.id.vote_down);
            textViewForAuthor = itemView.findViewById(R.id.author);
            imageForLike = itemView.findViewById(R.id.image_vote_up);
            imageForUnlike = itemView.findViewById(R.id.image_vote_down);
            imageForPlay = itemView.findViewById(R.id.audio_play);
        }
 
        public void bind(BookEntry model) {
 
            // Fill other text views
            textViewForExpression.setText(model.getExpression());
            textViewForDescription.setText(model.getDescription());
            textViewForLike.setText(String.valueOf(model.getLike()));
            textViewForUnlike.setText(String.valueOf(model.getUnlike()));
            textViewForAuthor.setText(context.getString(R.string.author, model.getAuthor()));
            // Fill image views
            if (mUserNotes.containsKey(model.getKey()))
                if (mUserNotes.get(model.getKey()) == LIKE) {
                    imageForLike.setImageResource(R.drawable.ic_thumb_up_blue);
                    imageForUnlike.setImageResource(R.drawable.ic_thumb_down_ltgray);
                } else if (mUserNotes.get(model.getKey()) == UNLIKE) {
                    imageForLike.setImageResource(R.drawable.ic_thumb_up_ltgray);
                    imageForUnlike.setImageResource(R.drawable.ic_thumb_down_blue);
                } else {
                    imageForLike.setImageResource(R.drawable.ic_thumb_up_ltgray);
                    imageForUnlike.setImageResource(R.drawable.ic_thumb_down_ltgray);
                }
        }
 
 
    }
}
C'est le code sur lequel je travail actuellement pour la définition du drawable par défaut lorsque l'utilisateur a déjà liké ou unliké. La base de donnée Firebase contient déjà des entrées avec lesquelles j'effectue les tests.
Pour les cardviews dans lesquels l'utilisateur a déjà fait un choix, aucune image ne s'affiche contrairement aux autres.

Je reste donc a l'écoute si vous avez besoin que je fournisse des informations supplémentaires, merci.