[Solved] Set value for Spinner with custom Adapter in Android

@Haresh Chhelana example is good, However if you want to show both name and code in spinner after selecting, check this out.

    List<Map<String, String>> items = new ArrayList<Map<String, String>>();

    for (int i = 0; i < JA.length(); i++) {
        json = JA.getJSONObject(i);
        mapData = new HashMap<String, String>();
        mapData.put("name", json.getString("Name"));
        mapData.put("code", json.getString("Code"));
        items.add(mapData);
    }

    SimpleAdapter adapter = new SimpleAdapter(this, items, android.R.layout.simple_list_item_2, new String[] {
            "name", "code" }, new int[] { android.R.id.text1, android.R.id.text2 });
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    spinner.setAdapter(adapter);

And Spinner selected item callback

spinner.setOnItemSelectedListener(new OnItemSelectedListener() {

            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                Map<String, String> selectedItem = (Map<String, String>) parent.getSelectedItem();
                String name=selectedItem.get("name");
                String code=selectedItem.get("code");
            }

            @Override
            public void onNothingSelected(AdapterView<?> parent) {
            }
        });