Cleaned up MediaStore loaders, preparing for album art loading directly from the file

app/src/main/java/com/kabouzeid/gramophone/imageloader/PhonographImageDownloader.java

@@ -0,0 +1,35 @@
+package com.kabouzeid.gramophone.imageloader;
+
+import android.content.Context;
+
+import com.kabouzeid.gramophone.util.MusicUtil;
+import com.nostra13.universalimageloader.core.download.BaseImageDownloader;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * @author Karim Abou Zeid (kabouzeid)
+ */
+public class PhonographImageDownloader extends BaseImageDownloader {
+    public static final String SCHEME_ALBUM = "album://";
+    public static final String SCHEME_SONG = "song://";
+
+    public PhonographImageDownloader(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected InputStream getStreamFromOtherSource(String imageUri, Object extra) throws IOException {
+        if (imageUri.startsWith(SCHEME_ALBUM)) {
+            try {
+                int id = Integer.valueOf(imageUri.substring(SCHEME_ALBUM.length()));
+                return getStream(MusicUtil.getAlbumArtUri(id).toString(), extra);
+            } catch (NumberFormatException e) {
+                return super.getStreamFromOtherSource(imageUri, extra);
+            }
+        } else {
+            return super.getStreamFromOtherSource(imageUri, extra);
+        }
+    }
+}