pass Arraylist through intent

Question

I want to pass the taskItems

ArrayList<HashMap<String,String>> taskItems = new ArrayList<HashMap<String, String>>();

through intent to the second activity

    ArrayList<String> stringArr = new ArrayList<String>();
    stringArr.add(KEY_TITLE);
    stringArr.add(KEY_INFO);
    stringArr.add(KEY_OBJECT);
    stringArr.add(KEY_LOCATION);

    ArrayList<Integer> intArr = new ArrayList<Integer>();
    intArr.add(R.id.title);
    intArr.add(R.id.info);
    intArr.add(R.id.object);
    intArr.add(R.id.location);

    //Neue Oberfläche starten
    Intent in = new Intent(ListViewActivity.this, ListMenuItemActivity.class);
    in.putStringArrayListExtra("StringAdapter",stringArr);
    in.putIntegerArrayListExtra("intAdapter",intArr);
    ------>in.putStringArrayListExtra("taskItems",taskItems);

    startActivity(in);

I've marked the spot. How can i pass the ArrayList through Intent to my Activity?

before posting questions, at least search similar questions available in SO. if you didnt get any solution, then only post. check this question http://stackoverflow.com/questions/15790499/passing-arraylist-of-objects-between-activities — Rince Thomas, Apr 29 '15 at 11:57

score 2 · Accepted Answer · answered Apr 29 '15 at 11:56

HashMap extends Serializable interface, so you can pass an ArrayList of Serializable objects:

ArrayList<HashMap<String, String>> taskItems = new ArrayList<>();
in.putExtra("taskItems", taskItems);

and fetch it like:

ArrayList<HashMap<String, String>> taskItems = (ArrayList<HashMap<String, String>>) in
        .getSerializableExtra("taskItems");

Jignesh Jain · Answer 2 · 2015-04-29T12:12:20.357

1

do this way

Send

ArrayList<HashMap<String,String>> hashMap= new ArrayList<HashMap<String, String>>()

Intent intent = new Intent(SourceActivity.this, DestinationActivity.class);
intent.putExtra("hashMap", hashMap);
startActivity(intent);

Recieve

  Intent intent = getIntent();    
   ArrayList<HashMap<String,String>> hashMap = (ArrayList(HashMap<String, String>)) intent.getSerializableExtra("hashMap");

edited Apr 29 '15 at 12:12

answered Apr 29 '15 at 11:58

Jignesh Jain

1,518
12
28

It's not an ArrayList of Strings, it's an ArrayList of HashMaps. This won't work. – Simas Apr 29 '15 at 12:10

pass Arraylist through intent

2 Answers2