Brought back the shuffle button in the to the song list.

app/src/main/java/com/kabouzeid/gramophone/adapter/song/ShuffleButtonSongAdapter.java

@@ -0,0 +1,116 @@
+package com.kabouzeid.gramophone.adapter.song;
+
+import android.graphics.Typeface;
+import android.support.annotation.LayoutRes;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.v7.app.AppCompatActivity;
+import android.view.View;
+
+import com.afollestad.materialdialogs.ThemeSingleton;
+import com.kabouzeid.gramophone.R;
+import com.kabouzeid.gramophone.helper.MusicPlayerRemote;
+import com.kabouzeid.gramophone.interfaces.CabHolder;
+import com.kabouzeid.gramophone.model.Song;
+
+import java.util.ArrayList;
+
+/**
+ * @author Karim Abou Zeid (kabouzeid)
+ */
+public class ShuffleButtonSongAdapter extends SongAdapter {
+    private static final int SHUFFLE_BUTTON = 0;
+    private static final int SONG = 1;
+
+    public ShuffleButtonSongAdapter(AppCompatActivity activity, ArrayList<Song> dataSet, @LayoutRes int itemLayoutRes, boolean usePalette, @Nullable CabHolder cabHolder) {
+        super(activity, dataSet, itemLayoutRes, usePalette, cabHolder);
+    }
+
+    @Override
+    protected SongAdapter.ViewHolder createViewHolder(View view) {
+        return new ViewHolder(view);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        position--;
+        if (position < 0) return -2;
+        return super.getItemId(position);
+    }
+
+    @Override
+    protected Song getIdentifier(int position) {
+        position--;
+        if (position < 0) return new Song();
+        return super.getIdentifier(position);
+    }
+
+    @Override
+    public int getItemViewType(int position) {
+        return position == 0 ? SHUFFLE_BUTTON : SONG;
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull final SongAdapter.ViewHolder holder, int position) {
+        if (holder.getItemViewType() == SHUFFLE_BUTTON) {
+            if (holder.title != null) {
+                holder.title.setText(activity.getResources().getString(R.string.action_shuffle_all).toUpperCase());
+                holder.title.setTextColor(ThemeSingleton.get().positiveColor);
+                holder.title.setTypeface(Typeface.create("sans-serif-medium", Typeface.NORMAL));
+            }
+            if (holder.text != null) {
+                holder.text.setVisibility(View.GONE);
+            }
+            if (holder.menu != null) {
+                holder.menu.setVisibility(View.GONE);
+            }
+            if (holder.image != null) {
+                final int padding = activity.getResources().getDimensionPixelSize(R.dimen.default_item_margin) / 2;
+                holder.image.setPadding(padding, padding, padding, padding);
+                holder.image.setColorFilter(ThemeSingleton.get().positiveColor);
+                holder.image.setImageResource(R.drawable.ic_shuffle_white_24dp);
+            }
+            if (holder.separator != null) {
+                holder.separator.setVisibility(View.VISIBLE);
+            }
+            if (holder.shortSeparator != null) {
+                holder.shortSeparator.setVisibility(View.GONE);
+            }
+        } else {
+            super.onBindViewHolder(holder, position - 1);
+        }
+    }
+
+    public class ViewHolder extends SongAdapter.ViewHolder {
+
+        public ViewHolder(@NonNull View itemView) {
+            super(itemView);
+        }
+
+        @Override
+        protected Song getSong() {
+            if (getItemViewType() == SHUFFLE_BUTTON) return new Song();
+            return dataSet.get(getAdapterPosition() - 1);
+        }
+
+        @Override
+        public void onClick(View v) {
+            if (getItemViewType() == SHUFFLE_BUTTON) {
+                MusicPlayerRemote.openAndShuffleQueue(dataSet, true);
+                return;
+            }
+            if (isInQuickSelectMode()) {
+                toggleChecked(getAdapterPosition());
+            } else {
+                MusicPlayerRemote.openQueue(dataSet, getAdapterPosition() - 1, true);
+            }
+        }
+
+        @Override
+        public boolean onLongClick(View view) {
+            if (getItemViewType() == SHUFFLE_BUTTON) return false;
+            toggleChecked(getAdapterPosition());
+            return true;
+        }
+    }
+}

app/src/main/java/com/kabouzeid/gramophone/ui/fragments/mainactivityfragments/SongViewFragment.java

@@ -4,14 +4,14 @@ import android.support.annotation.NonNull;
 import android.support.v7.widget.GridLayoutManager;
 
 import com.kabouzeid.gramophone.R;
-import com.kabouzeid.gramophone.adapter.song.SongAdapter;
+import com.kabouzeid.gramophone.adapter.song.ShuffleButtonSongAdapter;
 import com.kabouzeid.gramophone.loader.SongLoader;
 import com.kabouzeid.gramophone.util.PreferenceUtil;
 
 /**
  * @author Karim Abou Zeid (kabouzeid)
  */
-public class SongViewFragment extends AbsMainActivityRecyclerViewLayoutModeFragment<SongAdapter, GridLayoutManager> {
+public class SongViewFragment extends AbsMainActivityRecyclerViewLayoutModeFragment<ShuffleButtonSongAdapter, GridLayoutManager> {
 
     public static final String TAG = SongViewFragment.class.getSimpleName();
 
@@ -23,8 +23,8 @@ public class SongViewFragment extends AbsMainActivityRecyclerViewLayoutModeFragm
 
     @NonNull
     @Override
-    protected SongAdapter createAdapter() {
+    protected ShuffleButtonSongAdapter createAdapter() {
-        return new SongAdapter(
+        return new ShuffleButtonSongAdapter(
                 getMainActivity(),
                 SongLoader.getAllSongs(getActivity()),
                 getItemLayout(),