Access a varibale from MainActivity class to another class

Question

I have a JSONObject in my MainActivity under a function and I want to use it outside the function and in another class, how can I do that?

I want to make this variable public , here is the code :

public void ListDrwaer() {
        List<Map<String, String>> productList = new ArrayList<Map<String, String>>();

        try {
            JSONObject jsonResponse = new JSONObject(jsonResult);
            JSONArray jsonMainNode = jsonResponse.optJSONArray("products");

            for (int i = 0; i < jsonMainNode.length(); i++) {
                JSONObject jsonChildNode = jsonMainNode.getJSONObject(i);

            }
          //  System.out.println("*****JARRAY*****" + jsonMainNode.getJSONObject(0));
            List<Map<String, String>> productLista = new ArrayList<Map<String, String>>();
            JSONObject pro1 = jsonMainNode.getJSONObject(1);
            String data = pro1.getString("name");
        //    System.out.println("*****JARRAY*****" + data);


            System.out.println("*****JARRAY*****" + pro1);



        } catch (JSONException e) {
            Toast.makeText(getApplicationContext(), "Error" + e.toString(),
                    Toast.LENGTH_SHORT).show();
        } 

I want to make pro1 (which is JSONObject ) public and use it outside public void and also use it in another class.

Can I do that using put or add?

Answer 1

try code below, it might help..

Intent intent = new Intent(getBaseContext(), SignoutActivity.class);
intent.putExtra("EXTRA_SESSION_ID", sessionId);
startActivity(intent);

Answer 2

You will need to create the variable first outside any method like this

Static JSONObject pro1;

and then acces it simple by using

classname.pro1

Answer 3

1. you can declare that variable public. just put

   public static JSONObject pro1;

to your class declaration. 2. that is not safe because of: 1. that variable will vanish if your app will be killed and recreated by Android system. 2. you should be carefull when accessing that variable from other threads.