ArrayList Hash Map extract and storing into arraylist

Question

I just configured some data in an ArrayList of HashMaps, which will be sent to another activity. There it will get decoded and the values are then stored in particular arrays. Let me show my code which I configured in the 1st Activity:

ArrayList<HashMap<String, String>> hashMapArrayList = new ArrayList<HashMap<String, String>>();
JSONArray jsonArray = new JSONArray(cena);

for(int i=0; i<jsonArray.length(); i++) {

    //ointer exception
    jsonObject = jsonArray.getJSONObject(i);

    pr = jsonObject.getString("price");
    cgN = jsonObject.getString("categoryName");
    pN = jsonObject.getString("productName");
    cN = jsonObject.getString("catalogName");

    HashMap<String, String> hashMap = new HashMap<String, String>();
    hashMap.put("Price", pr);
    hashMap.put("CategoryName", cgN);
    hashMap.put("ProductName", pN);
    hashMap.put("CatalogName", cN);

    hashMapArrayList.add(hashMap);

    Intent intent = new Intent(Login.this, Checkout.class);
    //I took bundle but type convention error was coming
    intent.putExtra("arrayhash", hashMapArrayList);
    startActivity(intent);
}

Now in 2nd Activity,

ArrayList<HashMap<String, String>> hashMapArrayList2 = 
    (ArrayList<HashMap<String, String>>) getIntent().getSerializableExtra("arrayhash");

// Now here I am confused with extracting and also after extracting storing it like this:

/*String price[];
  String categoryName[];
  String productName[];
  String catalogName[];*/

A big thanks, deeply appreciated.

Raman Shrivastava · Accepted Answer · 2016-05-11 11:33:04Z

1

String[] price = new String[hashMapArrayList2.size()];
String[] categoryName = new String[hashMapArrayList2.size()];
String[] productName = new String[hashMapArrayList2.size()];
String[] catalogName = new String[hashMapArrayList2.size()];

int i=0;
for (Map<String, String> item : hashMapArrayList2) {
    price[i] = item.get("Price");
    categoryName[i] = item.get("CategoryName");
    productName[i] = item.get("ProductName");
    catalogName[i] = item.get("CatalogName");
    i++;
}

answered May 11, 2016 at 11:33

Raman Shrivastava

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4 Comments

hemen Over a year ago

now going to test,so first i have to iterate and then store !! ok?

Raman Shrivastava Over a year ago

right. hashmap doesnt give direct method to covert key value pairs into array.

hemen Over a year ago

it helped,that felt complete.Thanks for lightning response.

hemen Over a year ago

Raman,I have used one custom adapter with a listview to show result.My json file [ {blah},{nope}] had two objects.In list view two rows are showing but it showing duplicate.Means in list,it is showing only blah.

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