Last added playlist half working. More to come tomorrow.

app/src/main/java/com/kabouzeid/gramophone/model/LastAddedPlaylist.java

@@ -0,0 +1,23 @@
+package com.kabouzeid.gramophone.model;
+
+import android.content.Context;
+
+import com.kabouzeid.gramophone.R;
+import com.kabouzeid.gramophone.loader.LastAddedLoader;
+
+import java.util.ArrayList;
+
+/**
+ * @author Karim Abou Zeid (kabouzeid)
+ */
+public class LastAddedPlaylist extends SmartPlaylist {
+
+    public LastAddedPlaylist(Context context) {
+        super(context.getString(R.string.last_added), R.drawable.ic_queue_white_24dp);
+    }
+
+    @Override
+    public ArrayList<Song> getSongs(Context context) {
+        return LastAddedLoader.getLastAddedSongs(context);
+    }
+}

app/src/main/java/com/kabouzeid/gramophone/model/SmartPlaylist.java

@@ -0,0 +1,50 @@
+package com.kabouzeid.gramophone.model;
+
+import android.content.Context;
+import android.support.annotation.DrawableRes;
+
+import com.kabouzeid.gramophone.R;
+
+import java.util.ArrayList;
+
+/**
+ * @author Karim Abou Zeid (kabouzeid)
+ */
+public abstract class SmartPlaylist extends Playlist {
+    private static final long serialVersionUID = 3013701295356403681L;
+
+    @DrawableRes
+    public final int iconRes;
+
+    public SmartPlaylist(final String name, final int iconRes) {
+        super(-1, name);
+        this.iconRes = iconRes;
+    }
+
+    public SmartPlaylist() {
+        super();
+        this.iconRes = R.drawable.ic_queue_music_white_24dp;
+    }
+
+    public abstract ArrayList<Song> getSongs(Context context);
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = super.hashCode();
+        result = prime * result + iconRes;
+        return result;
+    }
+
+    @Override
+    public boolean equals(final Object obj) {
+        if (super.equals(obj)) {
+            if (getClass() != obj.getClass()) {
+                return false;
+            }
+            final SmartPlaylist other = (SmartPlaylist) obj;
+            return iconRes == other.iconRes;
+        }
+        return false;
+    }
+}