project upload

app/src/main/java/com/cappielloantonio/play/adapter/GenreAdapter.java

@@ -0,0 +1,77 @@
+package com.cappielloantonio.play.adapter;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.cappielloantonio.play.R;
+import com.cappielloantonio.play.model.Genre;
+
+import java.util.List;
+
+public class GenreAdapter extends RecyclerView.Adapter<GenreAdapter.ViewHolder> {
+    private static final String TAG = "GenreAdapter";
+    private List<Genre> genres;
+    private LayoutInflater mInflater;
+    private Context context;
+    private ItemClickListener itemClickListener;
+
+    public GenreAdapter(Context context, List<Genre> genres) {
+        this.context = context;
+        this.mInflater = LayoutInflater.from(context);
+        this.genres = genres;
+    }
+
+    // inflates the row layout from xml when needed
+    @Override
+    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View view = mInflater.inflate(R.layout.item_library_genre, parent, false);
+        return new ViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(ViewHolder holder, int position) {
+        Genre genre = genres.get(position);
+
+        holder.textGenre.setText(genre.getName());
+    }
+
+    @Override
+    public int getItemCount() {
+        return genres.size();
+    }
+
+    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
+        TextView textGenre;
+
+        ViewHolder(View itemView) {
+            super(itemView);
+
+            textGenre = itemView.findViewById(R.id.genre_label);
+
+            itemView.setOnClickListener(this);
+        }
+
+        @Override
+        public void onClick(View view) {
+            if (itemClickListener != null) itemClickListener.onItemClick(view, getAdapterPosition());
+        }
+    }
+
+    public void setItems(List<Genre> genres) {
+        this.genres = genres;
+        notifyDataSetChanged();
+    }
+
+    public void setClickListener(ItemClickListener itemClickListener) {
+        this.itemClickListener = itemClickListener;
+    }
+
+    public interface ItemClickListener {
+        void onItemClick(View view, int position);
+    }
+}