Read JSON

            try {
                JSONObject categories = new JSONObject(json);

                JSONObject category = categories.getJSONObject("nodes");

                Iterator<?> keys = category.keys();

                while (keys.hasNext()) {
                    String key = (String) keys.next();
                    JSONObject cate = category.getJSONObject(key);

                    String title = cate.getString("title");
                    Log.d("title", title);
                }
            } catch (JSONException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }