Genres tab

app/src/main/java/com/kabouzeid/gramophone/adapter/GenreAdapter.java

@@ -0,0 +1,88 @@
+package com.kabouzeid.gramophone.adapter;
+
+import android.support.annotation.LayoutRes;
+import android.support.annotation.NonNull;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.kabouzeid.gramophone.adapter.base.MediaEntryViewHolder;
+import com.kabouzeid.gramophone.model.Genre;
+import com.kabouzeid.gramophone.util.MusicUtil;
+import com.kabouzeid.gramophone.util.NavigationUtil;
+import com.simplecityapps.recyclerview_fastscroll.views.FastScrollRecyclerView;
+
+import java.util.ArrayList;
+
+public class GenreAdapter extends RecyclerView.Adapter<GenreAdapter.ViewHolder> implements FastScrollRecyclerView.SectionedAdapter {
+
+    public static final String TAG = GenreAdapter.class.getSimpleName();
+
+    @NonNull
+    private final AppCompatActivity activity;
+    private ArrayList<Genre> dataSet;
+    private int itemLayoutRes;
+
+    public GenreAdapter(@NonNull AppCompatActivity activity, ArrayList<Genre> dataSet, @LayoutRes int itemLayoutRes) {
+        this.activity = activity;
+        this.dataSet = dataSet;
+        this.itemLayoutRes = itemLayoutRes;
+    }
+
+    public ArrayList<Genre> getDataSet() {
+        return dataSet;
+    }
+
+    public void swapDataSet(ArrayList<Genre> dataSet) {
+        this.dataSet = dataSet;
+        notifyDataSetChanged();
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return dataSet.get(position).hashCode();
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(activity).inflate(itemLayoutRes, parent, false);
+        return new ViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
+        final Genre genre = dataSet.get(position);
+
+        if (holder.title != null) {
+            holder.title.setText(genre.name);
+        }
+    }
+
+    @Override
+    public int getItemCount() {
+        return dataSet.size();
+    }
+
+    @NonNull
+    @Override
+    public String getSectionName(int position) {
+        final Genre genre = dataSet.get(position);
+        return genre.id == -1 ? "" : MusicUtil.getSectionName(dataSet.get(position).name);
+    }
+
+    public class ViewHolder extends MediaEntryViewHolder {
+
+        public ViewHolder(@NonNull View itemView) {
+            super(itemView);
+        }
+
+        @Override
+        public void onClick(View view) {
+            Genre genre = dataSet.get(getAdapterPosition());
+            NavigationUtil.goToGenre(activity, genre);
+        }
+    }
+}

app/src/main/java/com/kabouzeid/gramophone/adapter/MusicLibraryPagerAdapter.java

@@ -12,6 +12,7 @@ import android.view.ViewGroup;
 import com.kabouzeid.gramophone.R;
 import com.kabouzeid.gramophone.ui.fragments.mainactivity.library.pager.AlbumsFragment;
 import com.kabouzeid.gramophone.ui.fragments.mainactivity.library.pager.ArtistsFragment;
+import com.kabouzeid.gramophone.ui.fragments.mainactivity.library.pager.GenresFragment;
 import com.kabouzeid.gramophone.ui.fragments.mainactivity.library.pager.PlaylistsFragment;
 import com.kabouzeid.gramophone.ui.fragments.mainactivity.library.pager.SongsFragment;
 
@@ -39,6 +40,7 @@ public class MusicLibraryPagerAdapter extends FragmentPagerAdapter {
                 context.getResources().getString(R.string.songs),
                 context.getResources().getString(R.string.albums),
                 context.getResources().getString(R.string.artists),
+                context.getResources().getString(R.string.genres),
                 context.getResources().getString(R.string.playlists)
         };
         final MusicFragments[] fragments = MusicFragments.values();
@@ -110,6 +112,7 @@ public class MusicLibraryPagerAdapter extends FragmentPagerAdapter {
         SONG(SongsFragment.class),
         ALBUM(AlbumsFragment.class),
         ARTIST(ArtistsFragment.class),
+        GENRES(GenresFragment.class),
         PLAYLIST(PlaylistsFragment.class);
 
         private final Class<? extends Fragment> mFragmentClass;
@@ -121,12 +124,10 @@ public class MusicLibraryPagerAdapter extends FragmentPagerAdapter {
         public Class<? extends Fragment> getFragmentClass() {
             return mFragmentClass;
         }
-
     }
 
     private final static class Holder {
         String mClassName;
-
         Bundle mParams;
     }
 }