Downloader.java

JSONObject response = new JSONObject(EntityUtils.toString(
		new DefaultHttpClient().execute(
			new HttpGet(params[0])).getEntity(), "UTF-8"));

if (response.optBoolean("success", false)) {				
	return response.getJSONObject("response").getJSONArray("photos");
} else {
	Log.w(TAG, "Request failed. Details: " + response.toString(2));
}