Android, définir drawable pour ImageView
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:
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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.
