Android class

package com.example.priem_ali.priem_patient;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.ShareActionProvider;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

/**
 * Created by Priem-Ali on 9/22/2016.
 */
public class spinnerActivity extends Activity {


    private Spinner spinner;
    private TextView textView12;

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.spineractivity);


        spinner = (Spinner)findViewById( R.id.spinner );
        textView12 = (TextView)findViewById( R.id.textView12 );

        String strJson="{\"products\":[{\"item_id\":\"103\",\"name\":\"Crispy Broast\",\"category\":\"Broast\",\"unit_price\":\"180.00\",\"cost_price\":\"180.00\",\"quantity\":\"100\",\"tax\":\"10.00\"}]}";
        String data = "";
        try {
            JSONObject  jsonRootObject = new JSONObject(strJson);

            //Get the instance of JSONArray that contains JSONObjects
            JSONArray jsonArray = jsonRootObject.optJSONArray("products");


            // Creating adapter for spinner


            //Iterate the jsonArray and print the info of JSONObjects
            for(int i=0; i < jsonArray.length(); i++){
                JSONObject jsonObject = jsonArray.getJSONObject(i);


                String name = jsonObject.optString("name").toString();
                String category = jsonObject.optString("category").toString();
                String unitp = jsonObject.optString("unit_price").toString();
                String quan = jsonObject.optString("quantity").toString();


                //data += " \n Name= "+ name +" \n , \n" +  " category= \"+ category +\" \n , \n" + "\" +  \" unitprice= \"+ unitp +\" \n + \"\" +  \" quanantity= \"+ quan +\" \n    "
                ;

                data += name + "\n"+ category + "\n" + unitp + "\n"+quan;

            }

            try {
                String arra [] = data.split("\n");

                ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.expandable_list_content, arra);

                // Drop down layout style - list view with radio button
                dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

                // attaching data adapter to spinner
                spinner.setAdapter(dataAdapter);
            } catch (Exception e) {
                e.printStackTrace();
                Toast.makeText(this , e.toString() , Toast.LENGTH_LONG).show();
            }

        } catch (JSONException e) {
            Toast.makeText(this , e.toString() , Toast.LENGTH_LONG).show();
            textView12.setText(e.toString()+data+"Google");
            e.printStackTrace();}

        textView12.setText(data+"\n");
    }

    private ShareActionProvider mShareActionProvider;

    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate menu resource file.
        getMenuInflater().inflate(R.menu.menu, menu);

        // Locate MenuItem with ShareActionProvider
        MenuItem item = menu.findItem(R.id.menu_item_share);

        // Fetch and store ShareActionProvider
        mShareActionProvider = (ShareActionProvider) item.getActionProvider();

        // Return true to display menu
        return true;
    }

    // Call to update the share intent
    private void setShareIntent(Intent shareIntent) {
        if (mShareActionProvider != null) {
            mShareActionProvider.setShareIntent(shareIntent);
        }
    }

    }