final String whereVideos = Video.VideoColumns.BUCKET_ID + "=" + Long.toString(set.mId);
cr.delete(uriImages, whereImages, null);
cr.delete(uriVideos, whereVideos, null);
final String whereVideos = Video.VideoColumns.BUCKET_ID + "=" + Long.toString(set.mId);
cr.delete(uriImages, whereImages, null);
cr.delete(uriVideos, whereVideos, null);