Question

Sorry for the title, I explain.

I’m developing an Android app that use a WebService on Google App Engine.
In my WebService I’ve an ArrayList converted in JSON trough JAX-RS, and the final JSON is something like

{ “lessons” : [ { “name” : “blabla”, “prof”:”Tom” }, { “name” :
“blabla”, “prof”:”Tom” } ] }

Is this practical or is there a better way?

Then I fetch this JSON from the Android app and convert it in a JSONObject with a snipplet found online:

DefaultHttpClient defaultClient = new DefaultHttpClient();

HttpGet httpGetRequest = new HttpGet(s);

HttpResponse httpResponse = defaultClient.execute(httpGetRequest);

BufferedReader reader = new BufferedReader(new
InputStreamReader(httpResponse.getEntity().getContent(), “UTF-8”));

String json = reader.readLine();

JSONObject jsonObject = new JSONObject(json);

How can I get back to my ArrayList?

I’ve read tons of code and tried to use Gson…
This should be easy but I’ve lost an entire day yesterday..

Answer 1

  private class Info {
        public String name;
        public String prof;
    }

    ArrayList<Info> arrayList = new ArrayList<Info>();

    JSONArray array = jsonObject.optJSONArray("lessons");
    int len = array.length();

    for (int i = 0; i < len ; i++) {
     JSONObject tmp = array.optJSONObject(i);
     Info info = new Info();
     info.name = tmp.optString("name");
     info.prof = tmp.optString("prof");
      arrayList.add(info)
}

check for mispelling error